A strong small motorcycle battery delivers the voltage, cranking power, and physical fit your bike requires; riders replacing a compact battery should start by matching the existing model and terminal layout. This roundup compares ten options, including YTX4L-BS AGM replacements, a lightweight LiFePO4 model, and larger YTX5L-BS, YTX7L-BS, and YTX12-BS batteries. The compact options range from 50 to 120 CCA among the listed AGM models, while the lithium listing claims 250 CCA.
Capacity and dimensions vary, so a higher number alone does not make a battery compatible. Check your motorcycle’s manual and old battery before choosing, especially the case size, terminal orientation, voltage, and required battery type.
The picks below prioritize a close match for small motorcycle applications and useful, clearly listed specifications.
The ExpertPower YTX4L-BS leads as the best small motorcycle battery in this group because its compact replacement format combines 12 volts, 4Ah capacity, and a listed 120 CCA. Its stated dimensions are 2.76 by 4.45 by 3.39 inches, and the listing identifies it as a replacement for YT4L, GTX4L, and GT4L models. Confirm the dimensions and terminal layout against your current battery before ordering; these specifications do not establish compatibility with every motorcycle.
Our Top Picks
Best OverallIts compact YTX4L-BS format pairs 12V and 4Ah with 120 CCA, the strongest listed AGM cranking figure among the small-format replacements.
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Higher CCAThis compact 12V, 3Ah YTX4L-BS replacement lists 70 CCA and a standard negative-left, positive-right terminal layout.
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Lithium OptionIts YTX4L-BS case dimensions and 16-ounce listed weight suit weight-conscious buyers; the title claims 250 CCA and LiFePO4 chemistry.
View on Amazon- Compact 4Ah Goodyear GYTX4L
- Narrowest Case Mighty Max YT4B-BS
Compare the battery options and their best-fit uses
| # | Product | Dimensions | Voltage | Battery Capacity | Buy |
|---|---|---|---|---|---|
| 1 | 1. ExpertPower YTX4L-BSBest Overall | 2.76"D x 4.45"W x 3.39"H | 12 V | 4 amp hours | View on Amazon |
| 2 | 2. Daakmax YTX4L-BSHigher CCA | 2.8"D x 4.49"W x 3.35"H | 12 V | — | View on Amazon |
| 3 | 3. Forgetyo Lithium YTX4L-BSLithium Option | 4.45"D x 2.76"W x 3.35"H | 12.8 V | 6 amp hours | View on Amazon |
| 4 | 4. Goodyear GYTX4LCompact 4Ah | 4.44"D x 2.7"W x 3.4"H | 12 V | 4 amp hours | View on Amazon |
| 5 | 5. UPLUS EB4-3Maintenance-free compact fit | 2.76"D x 4.45"W x 3.35"H | 12 V | — | View on Amazon |
| 6 | 6. Mighty Max YTX4L-BSCompact scooter replacement | 4.4"D x 2.75"W x 3.42"H | 12 V | 3 amp hours | View on Amazon |
| 7 | 7. Mighty Max YT4B-BSNarrowest Case | 4.44"D x 1.5"W x 3.44"H | 12 V | 23 amp hours | View on Amazon |
| 8 | 8. Mighty Max YTX7L-BSHigher-capacity scooter replacement | 4.4"D x 2.75"W x 5.19"H | 12 V | 6 amp hours | View on Amazon |
| 9 | 9. Casil YTX5L-BSYTX5L-BS replacement fit | 2.79"D x 4.48"W x 4.17"H | 12 V | — | View on Amazon |
| 10 | 10. ExpertPower YTX12-BSLarger 12Ah AGM capacity | 3.43"D x 5.91"W x 5.12"H | 12 V | — | View on Amazon |
Detailed Reviews: Best Small Battery For Motorcycle

#1 · Best Overall
1. ExpertPower YTX4L-BS
- Dimensions: 2.76"D x 4.45"W x 3.39"H
- Voltage: 12 V
- Battery Capacity: 4 amp hours
Best for: High-CCA YTX4L replacement.
Why it ranks #1: Its compact YTX4L-BS format pairs 12V and 4Ah with 120 CCA, the strongest listed AGM cranking figure among the small-format replacements.
The ExpertPower YTX4L-BS combines 4Ah capacity with a 120 CCA rating, giving small-bike buyers notably specific output figures in a compact replacement format. Its stated compatibility includes YT4L, GTX4L, and GT4L models, so the listed cross-references can help narrow replacement choices for those battery types.
Compared with standard 3Ah units, the listed 4Ah capacity provides a higher-capacity option while remaining in the YTX4L-BS replacement family. The 120 CCA rating is specified to support ignition across temperatures, including cold-start conditions. Its 4.45-by-2.76-by-3.39-inch dimensions help buyers assess space, and the stated direct OEM swap compatibility covers YT4L, GTX4L, and GT4L models. The product is described as an AGM battery and is listed for motorcycles, scooters, ATVs, and dirt bikes.
- 4Ah capacity
- 120 CCA rating
- Direct replacement compatibility listed for YT4L, GTX4L, and GT4L
- Dimensions provided for fit comparison
- The listed 4Ah YTX12-BS from ExpertPower has more capacity at 12Ah, but uses a larger case.
Skip it if you need 12Ah capacity; the larger ExpertPower YTX12-BS is listed at 12Ah rather than 4Ah.
For a motorcycle, scooter, ATV, or dirt bike using a compatible YTX4L-BS-family battery, this combines 4Ah with a 120 CCA rating. Treat the cross-reference as a starting point and compare the listed dimensions with available compartment space.
Full product details
| Brand | ExpertPower |
|---|---|
| Battery Capacity | 4 amp_hours |
| Compatible with Vehicle Type | ATV, street-cruiser-motorcycles, street-motor-scooters, street-touring-motorcycles |
| Included Components | BLDMYB12_4 |
| Dimensions | 2.76"D x 4.45"W x 3.39"H |
| Item Weight | 2.9 pounds |
| Manufacturer | ExpertPower |
| Part Number | BLMMYB12_3 |
| Manufacturer Warranty Description | 1 year |
| Model Number | YTX4L-BS |
| Size | YTX4L-BS |
| Voltage | 12 volts |
| Additional Information | Important information Safety Information DOT Certified |
Listed on Amazon as: ExpertPower YTX4L-BS AGM Motorcycle Battery 12V 4Ah High Capacity 120 CCA
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#2 · Higher CCA
2. Daakmax YTX4L-BS
- Dimensions: 2.8"D x 4.49"W x 3.35"H
- Voltage: 12 V
Best for: Compact 70-CCA powersports fit.
Why it ranks #2: This compact 12V, 3Ah YTX4L-BS replacement lists 70 CCA and a standard negative-left, positive-right terminal layout.
A 70 CCA rating in a compact YTX4L-BS form gives the Daakmax a clear starting-power distinction among small 3Ah batteries. Its listed 4.49-by-2.80-by-3.35-inch dimensions and standard negative-positive terminal layout support a direct size and connection comparison for scooters, ATVs, and other listed powersports vehicles.
The 12V, 3Ah sealed AGM battery is rated at 70 CCA, which the listing positions for small-engine vehicles including scooters, ATVs, and powersports equipment. Its 4.49-by-2.80-by-3.35-inch size and standard negative-positive terminal layout help buyers compare both case fit and cable placement with the old battery. The sealed design requires no regular water addition and will not spill acid, reducing routine care and spill concerns in use.
- 70 CCA in a 12V, 3Ah battery
- Sealed AGM maintenance-free construction
- Standard negative-positive terminal layout
- Listed for ATV, motorcycle, scooter, and more
- At 3.5 pounds, it weighs more than the 16-ounce Forgetyo lithium battery.
Skip it if you prioritize a 16-ounce battery; the Forgetyo LiFePO4 YTX4L-BS is listed at that weight.
This suits riders replacing a compact YTX4L-BS in a scooter, ATV, or other listed powersports vehicle who want 70 CCA and sealed operation. Compare its case measurements and terminal orientation with the battery being removed.
Full product details
| Brand | Daakmax |
|---|---|
| Compatible with Vehicle Type | ATV, Motorcycle, Personal Watercraft, Snowmobile, UTV |
| Included Components | Battery |
| Dimensions | 2.8"D x 4.49"W x 3.35"H |
| Manufacturer | Daakmax |
| Part Number | YTX4L |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | YTX4L-BS |
| Size | YTX-4L |
| Voltage | 12 volts |
Listed on Amazon as: YTX4L-BS Motorcycle Battery 12V 3Ah, 70 CCA Sealed AGM Rechargeable Maintenance Free Battery, Replacement for ATV, 50cc Scooter, Dirt Bike
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#3 · Lithium Option
3. Forgetyo Lithium YTX4L-BS
- Dimensions: 4.45"D x 2.76"W x 3.35"H
- Voltage: 12.8 V
- Battery Capacity: 6 amp hours
Best for: Lightweight lithium battery.
Why it ranks #3: Its YTX4L-BS case dimensions and 16-ounce listed weight suit weight-conscious buyers; the title claims 250 CCA and LiFePO4 chemistry.
The Forgetyo YTX4L-BS is identified as a 12V, 2.5Ah LiFePO4 battery with 250 CCA, distinguishing it from the sealed lead-acid options in this roundup. At 16 ounces and 4.45 by 2.76 by 3.35 inches, it offers a notably light listed package for buyers comparing battery weight and case size.
Its title specifies a 12V, 2.5Ah LiFePO4 chemistry and 250 CCA, while the specifications list 12.8V and a 16-ounce weight. The 4.45-by-2.76-by-3.35-inch case gives a concrete size for fit comparison against the existing battery. Those figures make it an option for buyers considering a lighter replacement in the YTX4L-BS format. However, the capacity information conflicts: the title says 2.5Ah while the specification table lists 6Ah, so capacity should not be treated as unambiguous.
- LiFePO4 chemistry identified in title
- 250 CCA specified in title
- 16-ounce listed weight
- Compact 4.45-by-2.76-by-3.35-inch dimensions
- Capacity information conflicts: the title says 2.5Ah, while the specifications list 6Ah.
Skip it if you need unambiguous capacity figures; the ExpertPower YTX4L-BS lists a consistent 4Ah capacity and 120 CCA.
Consider this for a buyer comparing a lightweight LiFePO4 YTX4L-BS-format battery and a stated 250 CCA rating. The title and specification table disagree on capacity, so that conflict is a key boundary when deciding whether its output fits.
Full product details
| Brand | Forgetyo |
|---|---|
| Battery Capacity | 6 amp_hours |
| Compatible with Vehicle Type | ATV |
| Included Components | 1 Battery |
| Dimensions | 4.45"D x 2.76"W x 3.35"H |
| Item Weight | 16 ounces |
| Manufacturer | Forgetyo |
| Part Number | BU YTX4L-BS |
| Manufacturer Warranty Description | Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. Forgetyo will also provide you wi |
| Model Number | YTX4L-BS |
| Voltage | 12.8 volts |
Listed on Amazon as: Lithium YTX4L-BS, Forgetyo 12V 2.5AH 250CCA LiFePO4 Motorcycle Battery, ATV, UTV, Jet Ski, 4 Wheeler,Snowmobile,Tractor and Generator Battery
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#4 · Compact 4Ah
4. Goodyear GYTX4L
- Dimensions: 4.44"D x 2.7"W x 3.4"H
- Voltage: 12 V
- Battery Capacity: 4 amp hours
Best for: Flexible-position AGM fit.
Why it ranks #4: The 4.44-by-2.7-by-3.4-inch AGM case lists 4Ah, 50 CCA, and a one-year manufacturer warranty for compact replacement needs.
The Goodyear GYTX4L can be mounted in any position except upside down, offering installation flexibility alongside its sealed, maintenance-free construction. Its 12V, 4Ah capacity and 50 CCA rating make the output specific, while shock, vibration, and temperature resistance are listed for powersports operation.
With 4Ah capacity in a 4.44-by-2.7-by-3.4-inch case, this battery gives buyers dimensions to compare with a compact motorcycle compartment. The 50 CCA rating is specified alongside resistance to shocks, vibrations, and extreme temperatures, connecting its output to the listed operating conditions. Its sealed AGM construction requires no water refills or acid-level checks, and flexible mounting is allowed in any position except upside down. The product is also described as capable of deep-discharge recovery.
- 12V, 4Ah capacity
- Flexible mounting except upside down
- Sealed maintenance-free AGM construction
- Shock, vibration, and temperature resistance specified
- Its 50 CCA rating is below the 70 CCA Daakmax YTX4L-BS.
Skip it if you want a higher listed CCA figure; the Daakmax YTX4L-BS specifies 70 CCA compared with this battery's 50 CCA.
Choose this for a buyer who needs a compact GYTX4L battery and values flexible mounting, sealed operation, and specified resistance to vibration and temperature extremes. It cannot be mounted upside down, and its 50 CCA rating remains a fit consideration.
Full product details
| Brand | Goodyear |
|---|---|
| Battery Capacity | 4 amp_hours |
| Compatible with Vehicle Type | ATV |
| Included Components | Battery |
| Dimensions | 4.44"D x 2.7"W x 3.4"H |
| Manufacturer | Goodyear |
| Part Number | GYTX4L |
| Manufacturer Warranty Description | 1 Year Manufacturers Warranty |
| Model Number | GYTX4L |
| Size | Standard |
| Voltage | 12 volts |
Listed on Amazon as: Goodyear GYTX4L – 12 Volt 4 AH, 50 CCA, Rechargeable High-Performance, Maintenance Free, SLA – AGM Battery for Motorcycle, ATV, UTV, 4-Wheeler, Snowmobile, Watercraft and more!
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#5
5. UPLUS EB4-3
- Dimensions: 2.76"D x 4.45"W x 3.35"H
- Voltage: 12 V
Best for: Maintenance-free compact fit.
Why it ranks #5: This 12V, 3Ah maintenance-free AGM battery measures 2.76 by 4.45 by 3.35 inches and lists compatibility with motorcycles and scooters.
The UPLUS EB4-3 pairs a compact 4.45-by-2.76-by-3.35-inch case with a 12V, 3Ah rating, giving buyers a clearly sized YTX4L-BS replacement option. Its sealed construction needs no water checks and is described as spill- and leak-free, simplifying routine care for compatible motorcycles and other listed vehicles.
The 50 CCA rating and 3Ah capacity identify this as a compact replacement rather than a higher-output upgrade. Its dimensions and negative-positive terminal layout support comparison with the existing battery before installation, while compatibility is listed for ATVs, motorcycles, scooters, snowmobiles, and UTVs. Sealed maintenance-free construction means no water checks, spills, or leaks according to the listing. The product also specifies 99.99% pure primary lead, which the supplied description associates with charging and reliability characteristics.
- 12V, 3Ah sealed battery
- 50 CCA rating
- No water checks; spill- and leak-free design
- Compatible vehicle list includes motorcycles and scooters
- Its 50 CCA rating is lower than the 120 CCA ExpertPower YTX4L-BS.
Skip it if you want the higher listed cranking rating; the ExpertPower YTX4L-BS specifies 120 CCA versus this battery's 50 CCA.
This fits buyers seeking a compact, maintenance-free YTX4L-BS-style battery for a listed motorcycle, scooter, ATV, snowmobile, or UTV. Compare its 3Ah, 50 CCA rating, case dimensions, and terminal layout with the vehicle's requirements.
Full product details
| Brand | UPLUS NEW TECHNOLOGY BATTERY |
|---|---|
| Compatible with Vehicle Type | ATV, Motorcycle, Scooter, Snowmobile, UTV |
| Included Components | AGM Battery |
| Dimensions | 2.76"D x 4.45"W x 3.35"H |
| Item Weight | 3 pounds |
| Manufacturer | Leoch Battery |
| Part Number | EB4-3 |
| Manufacturer Warranty Description | 15 MONTHS |
| Model Number | EB4-3 |
| Size | YTX4L-BS(12V 3Ah) |
| Voltage | 12 volts |
Listed on Amazon as: UPLUS YTX4L-BS AGM Motorcycle Battery EB4-3 12V 3Ah Maintenance Free
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#6
6. Mighty Max YTX4L-BS
- Dimensions: 4.4"D x 2.75"W x 3.42"H
- Voltage: 12 V
- Battery Capacity: 3 amp hours
Best for: Compact scooter replacement.
Why it ranks #6: The compact 12V, 3Ah AGM battery measures 4.4 by 2.75 by 3.42 inches and lists 50 CCA, though no harness or mounting accessories are included.
The 4.40-by-2.90-by-3.42-inch YTX4L-BS package gives scooter owners a clearly specified 12-volt replacement with 50 CCA. Its sealed AGM construction is rechargeable and maintenance-free, so it offers a contained battery format without routine water checks. The listing also identifies terminal polarity for planning the connection.
At 3Ah and 50 CCA, this battery is specified for a small replacement application rather than a higher-capacity upgrade. Its 4.4-by-2.75-by-3.42-inch listed dimensions and negative-left, positive-right polarity give buyers concrete measurements to compare with the old battery and cable layout. Sealed AGM construction is spill-proof and rechargeable, while the supplied description says it arrives charged and ready to install. The package includes the battery and screws, not a wire harness or mounting accessories.
- 12V, 3Ah sealed AGM battery
- 50 CCA rating
- Spill-proof construction with deep-discharge recovery
- Supplied charged and maintenance-free
- No wire harness or mounting accessories are included.
Skip it if you need a harness or mounting hardware in the box; the listing includes only the battery and screws.
For a scooter owner replacing a matching compact YTX4L-BS, this offers a sealed, rechargeable 3Ah format and stated polarity. Check the case dimensions and terminal orientation against the existing setup; installation accessories are not included.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 3 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.75"W x 3.42"H |
| Item Weight | 2.9 pounds |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX4L-BS |
| Manufacturer Warranty Description | Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service. |
| Model Number | YTX4L-BS15664 |
| Size | 1 Pack |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Mighty Max Battery YTX4L-BS – 12 Volt 3 AH, 50 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
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#7 · Narrowest Case
7. Mighty Max YT4B-BS
- Dimensions: 4.44"D x 1.5"W x 3.44"H
- Voltage: 12 V
- Battery Capacity: 23 amp hours
Best for: Narrow scooter battery fit.
Why it ranks #7: Its listed 1.50-inch width makes this 12V AGM case notably narrow, but the stated 25 CCA and 2.3Ah suit only compatible applications.
The Mighty Max YT4B-BS measures just 1.50 inches wide, a distinctive slim case dimension for buyers working with a narrow battery space. It is a rechargeable 12V, 2.3Ah sealed AGM battery with 25 CCA, and its spill-proof construction can be mounted in any position, according to the listing.
The 4.44-by-1.50-by-3.44-inch listed case makes width a central fit advantage to evaluate, while the YT4B-BS designation distinguishes it from the more common YTX4L formats here. Its 12V, 2.3Ah capacity and 25 CCA rating are specified for buyers checking required output. Sealed AGM construction is maintenance-free and spill-proof, and the description says it resists shocks and vibration and can be mounted in any position. It arrives charged and ready to install.
- Slim 1.50-inch listed width
- 12V, 2.3Ah sealed AGM battery
- Spill-proof construction
- Can be mounted in any position
- Its 25 CCA rating is lower than the 50 CCA Mighty Max YTX4L-BS.
Skip it if you need 50 CCA; the Mighty Max YTX4L-BS is rated at 50 CCA compared with this battery's 25 CCA.
This suits a scooter owner whose battery space requires the narrow YT4B-BS case and whose application matches its 2.3Ah, 25 CCA rating. Check the exact case and terminal fit; the slim width does not make it interchangeable with every compact battery.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 23 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.44"D x 1.5"W x 3.44"H |
| Manufacturer | Mighty Max Battery |
| Part Number | YT4B-BS |
| Manufacturer Warranty Description | 1 Year Manufacturers Warranty |
| Model Number | YT4B-BS |
| Size | YT4B-BS |
| Voltage | 12 volts |
Listed on Amazon as: Mighty Max Battery YT4B-BS – 12 Volt 2.3 AH, 25 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
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#8
8. Mighty Max YTX7L-BS
- Dimensions: 4.4"D x 2.75"W x 5.19"H
- Voltage: 12 V
- Battery Capacity: 6 amp hours
Best for: Higher-capacity scooter replacement.
Why it ranks #8: This 12V, 6Ah battery provides 100 CCA, but its 5.19-inch height makes it a larger-case choice than the compact YTX4L options.
The 6Ah capacity and 100 CCA rating distinguish this Mighty Max YTX7L-BS from smaller 3Ah options, giving buyers a higher-rated replacement to consider. Its sealed AGM construction is rechargeable and spill-proof, while the listed 4.40-by-2.75-by-5.19-inch dimensions help establish whether the taller case suits the battery space.
This 12V battery pairs 6Ah capacity with 100 CCA, a step up in both listed figures from the brand's 3Ah, 50 CCA YTX4L-BS. The 4.4-by-2.75-by-5.19-inch case dimensions let buyers assess space before installation, and the stated polarity is positive-right, negative-left. Sealed SLA/AGM construction is described as spill-proof and capable of deep-discharge recovery. The listing includes the battery and screws, but no wire harness or mounting accessories.
- 12V, 6Ah capacity
- 100 CCA rating
- Spill-proof sealed AGM construction
- Deep-discharge recovery is specified
- At 5.19 inches tall, it needs more vertical clearance than the 3.42-inch Mighty Max YTX4L-BS.
Skip it if you have a short battery compartment; the 5.19-inch case is taller than the 3.42-inch Mighty Max YTX4L-BS.
Choose this for a scooter or similar application that calls for the YTX7L-BS size and values its listed 6Ah capacity and 100 CCA. Its taller case and left-negative, right-positive layout make space and cable orientation important checks.
Full product details
| Brand | Mighty Max Battery |
|---|---|
| Battery Capacity | 6 amp_hours |
| Compatible with Vehicle Type | Scooter |
| Included Components | Battery |
| Dimensions | 4.4"D x 2.75"W x 5.19"H |
| Manufacturer | Mighty Max Battery |
| Part Number | YTX7L-BS892 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | YTX7L-BS892 |
| Size | 1 Pack |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Mighty Max Battery YTX7L-BS -12 Volt 6 AH, 100 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
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#9
9. Casil YTX5L-BS
- Dimensions: 2.79"D x 4.48"W x 4.17"H
- Voltage: 12 V
Best for: YTX5L-BS replacement fit.
Why it ranks #9: The 12V, 4Ah AGM battery lists 80 CCA and measures 4.48 by 2.79 by 4.17 inches, fitting a different case size from YTX4L.
The Casil YTX5L-BS supplies 4Ah and 80 CCA in a different replacement size from the YTX4L-BS batteries, giving buyers with a YTX5L-BS application a specifically named option. Its listed equivalents span several related model codes, and its sealed AGM construction is maintenance-free for routine use.
This 12V battery is listed at 4Ah and 80 CCA, with a case measuring 4.48 by 2.79 by 4.17 inches. The YTX5L-BS designation and listed equivalents—GTX5L-BS, DTX5L-BS, TX5L, and ES5LBS—help identify the intended replacement family. Compatibility includes ATVs, scooters, UTVs, and personal watercraft, while the product title also names motorcycles and several small powersports uses. Sealed AGM construction avoids routine maintenance, but the YTX5L case dimensions still need to match the compartment.
- 12V, 4Ah capacity
- 80 CCA rating
- YTX5L-BS and several equivalent model codes listed
- Maintenance-free sealed AGM design
- Its 4.17-inch height exceeds the 3.35-inch case height of the Daakmax YTX4L-BS.
Skip it if you need a 3.35-inch-high case; the Daakmax YTX4L-BS measures 3.35 inches tall versus this battery's 4.17 inches.
This suits a buyer whose vehicle calls for the YTX5L-BS size or one of its listed equivalents and who wants sealed AGM operation. Its taller case differs from compact YTX4L formats, so compare dimensions before choosing.
Full product details
| Brand | Casil |
|---|---|
| Compatible with Vehicle Type | ATV, Passenger Car, Personal Watercraft, Scooter, UTV |
| Included Components | Battery only |
| Dimensions | 2.79"D x 4.48"W x 4.17"H |
| Item Weight | 3.5 pounds |
| Manufacturer | Chee Yuen Industrial Co., Ltd |
| Part Number | YTX5L |
| Manufacturer Warranty Description | 1 year prorated warranty |
| Model Number | YTX5L |
| Size | Small |
| Voltage | 12 volts |

#10
10. ExpertPower YTX12-BS
- Dimensions: 3.43"D x 5.91"W x 5.12"H
- Voltage: 12 V
Best for: Larger 12Ah AGM capacity.
Why it ranks #10: Its 5.91-by-3.43-by-5.12-inch case and 12Ah specification make it the least compact option for a buyer specifically seeking a small battery.
The 12Ah YTX12-BS brings substantially more listed capacity than the small 3Ah batteries in this roundup, making it relevant when a larger battery format is required. Its sealed AGM design needs no topping off or acid handling, and its 5.91-by-3.43-by-5.12-inch dimensions clarify the space it requires.
This 12V, 12Ah sealed lead-acid battery is listed for motorcycles, scooters, and ATVs, with dimensions of 5.91 by 3.43 by 5.12 inches. Those measurements make compartment clearance a central fit consideration compared with compact YTX4L-BS cases. The sealed design eliminates topping off and acid handling, while the description says it retains voltage longer during storage or standby and has a low self-discharge rate. Its rugged, vibration-resistant construction is specified for off-road and powersports use.
- 12V, 12Ah capacity
- Sealed design requires no topping off
- Low self-discharge rate is specified
- Rugged, vibration-resistant construction
- Its 5.91-by-3.43-by-5.12-inch case is much larger than compact YTX4L-BS batteries.
Skip it if you have space only for a compact YTX4L-BS; the ExpertPower YTX4L-BS measures 4.45 by 2.76 by 3.39 inches.
This is for a powersports owner whose compartment accepts the larger YTX12-BS case and who wants 12Ah sealed AGM capacity with low-maintenance storage. Measure available space first; its dimensions make it a different fit from small motorcycle batteries.
Full product details
| Brand | ExpertPower |
|---|---|
| Compatible with Vehicle Type | ATV, street-cruiser-motorcycles, street-motor-scooters, street-touring-motorcycles |
| Included Components | ETX12-BS |
| Dimensions | 3.43"D x 5.91"W x 5.12"H |
| Manufacturer | ExpertPower |
| Part Number | ETX12-BS |
| Manufacturer Warranty Description | 1 yr |
| Model Number | YTX12-BS |
| Size | YTX12-BS |
| Voltage | 12 volts |
| Additional Information | Important information Safety Information DOT Certified |
Listed on Amazon as: ExpertPower YTX12-BS Sealed AGM Motorcycle Battery 12V 12Ah 195 CCA
View on AmazonAvoiding a battery-fit mismatch
A battery’s model code and terminal position can matter as much as its voltage or capacity. Several listings use YTX4L-BS, but their dimensions are not identical: Daakmax lists 4.49 by 2.80 by 3.35 inches, while UPLUS lists 4.45 by 2.76 by 3.35 inches. Mighty Max reports 4.4 by 2.75 by 3.42 inches.
Those small differences may matter in a tight battery tray, and the listings do not establish that these products fit every motorcycle using a similar code. Compare your old battery’s label, measured case, terminal orientation, and cable reach with the candidate.
Also note that the Mighty Max YTX4L-BS listing includes the battery and screws but says no wire harness or mounting accessories are included. A matching nominal voltage alone is not enough to confirm a safe physical or electrical replacement.
Small-case power versus battery chemistry
A compact battery can prioritize different things: listed capacity, cranking amps, or low weight. The ExpertPower YTX4L-BS lists 4Ah and 120 CCA, while the Daakmax YTX4L-BS lists 3Ah and 70 CCA. The Forgetyo listing describes a LiFePO4 battery weighing 16 ounces and claims 250 CCA, but its specifications show a conflicting 6Ah capacity rather than the title’s 2.5Ah.
Treat that discrepancy as a reason to verify details with the seller and your motorcycle’s requirements before purchase. AGM listings here are sealed, maintenance-free lead-acid products; the lithium listing represents a different chemistry, so do not assume charging or compatibility requirements are interchangeable.
Use your motorcycle manual to confirm the permitted battery type and charging system rather than choosing by the largest CCA claim alone.
How to Choose a Small Motorcycle Battery
Case dimensions and terminal layout
Look first for a case size and terminal arrangement that match the battery already installed. YTX4L-BS candidates here range from 4.4 to 4.49 inches in one listed dimension and roughly 2.75 to 2.80 inches in another; listed heights span 3.35 to 3.42 inches. Daakmax specifies negative-left, positive-right terminals, while UPLUS lists a [- +] terminal layout.
The Mighty Max YT4B-BS is a different, unusually narrow format at 1.50 inches wide. Riders with a tight tray should measure their old battery and compare the exact product dimensions, not just the model family.
Buyers replacing a known YTX4L-BS can focus on that group; anyone switching formats should confirm fit and cable reach first.
Capacity and cold-cranking amps
Choose a battery with at least the capacity and cranking capability required for your motorcycle, rather than assuming more is always compatible. Among compact YTX4L-style AGM products, listed capacity ranges from 3Ah for Mighty Max and Daakmax to 4Ah for ExpertPower and Goodyear. Their stated CCA ranges from 50 for Mighty Max and Goodyear to 120 for ExpertPower; Daakmax lists 70.
The YTX7L-BS lists 6Ah and 100 CCA but has a taller case, while the YT4B-BS lists just 25 CCA. A rider seeking stronger listed cranking performance in a compact case may favor ExpertPower, provided it meets the motorcycle’s requirements.
Use the manual’s required ratings to judge whether a lower-output option is suitable.
Battery type and intended replacement
Check the battery chemistry and replacement code against your motorcycle’s manual before ordering. Most small-format candidates in this set are sealed AGM or SLA lead-acid batteries; the Forgetyo listing identifies a LiFePO4 lithium battery instead. The models also vary: YTX4L-BS options are not the same case as the Casil YTX5L-BS, Mighty Max YTX7L-BS, or ExpertPower YTX12-BS.
A direct-replacement claim is useful but should still be checked against your machine’s model year and original battery. Riders replacing an AGM battery with another listed AGM can compare dimensions and ratings within that group.
Those considering lithium should verify the motorcycle’s charging-system compatibility and the seller’s conflicting capacity details before choosing it.
Which Small Motorcycle Battery Should You Choose?
For a compact AGM replacement with the strongest stated CCA figure among the YTX4L options, choose the ExpertPower YTX4L-BS: it lists 4Ah and 120 CCA. If you want a similar case with 70 CCA and a specified terminal layout, consider the Daakmax YTX4L-BS. The Forgetyo Lithium YTX4L-BS is the weight-focused option, but confirm its specifications and lithium compatibility because its capacity details conflict.
Choose the Goodyear GYTX4L for a listed 4Ah compact AGM alternative, or the UPLUS EB4-3 and Mighty Max YTX4L-BS for 3Ah choices. The Mighty Max YT4B-BS serves a narrow-case application, not a general YTX4L swap.
Consider the YTX7L-BS, Casil YTX5L-BS, or YTX12-BS only when your motorcycle specifically requires those larger formats.
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Frequently Asked Questions
How do I confirm a replacement battery will fit my motorcycle’s battery compartment?
Compare the replacement’s stated dimensions with your current battery and the available compartment space. Check the terminal positions and layout as well, since the cables must reach and connect correctly. Confirm the required battery format in your motorcycle manual or with a qualified technician; a matching voltage or model family alone does not guarantee fit.
Can I replace an AGM motorcycle battery with a LiFePO4 battery?
Possibly, but confirm that the LiFePO4 battery is compatible with your motorcycle and its charging system before switching. Check the replacement’s dimensions, terminal layout, and stated electrical requirements against the original battery and the motorcycle manual. Do not assume that a similar case size or connector means the chemistry is suitable.
What should I check if a new motorcycle battery will not start the bike?
First check that the terminals are connected to the correct posts and secured, and that the battery is charged according to its instructions. Then inspect the terminal connections and motorcycle cables for looseness or corrosion. If the bike still will not start, consult the motorcycle manual or a qualified technician to check the starting system.
Can I use a YTX4L-BS battery in place of another battery format?
Only if the motorcycle specifies that format or the replacement is confirmed compatible. Compare the existing battery’s dimensions, terminal layout, and required electrical specifications with the candidate battery and the motorcycle manual. A YTX4L-BS listing does not establish compatibility with every motorcycle, and larger formats should be used only where specified.
What should I verify before choosing a lithium motorcycle battery?
Verify the battery’s stated capacity and other specifications, then confirm that its chemistry is compatible with your motorcycle’s charging system. Check dimensions and terminal layout against the existing battery as well. If the product listing has conflicting capacity details, contact the seller or consult the manufacturer before relying on those figures.
Final Words
For a compact AGM replacement, the ExpertPower YTX4L-BS is the strongest match in this group when its 2.76-by-4.45-by-3.39-inch case, terminal layout, and listed specifications suit your bike. The Daakmax is an alternative with a specified terminal layout and 70 CCA. Consider the Forgetyo only after verifying its conflicting capacity details and lithium compatibility.
Treat the other formats as options only when your motorcycle calls for them.


