Most Popular Motorcycle and Powersports Battery Sizes

Motorcycle and Powersports batteries are designed as starting/cranking lead-acid and lithium-ion batteries and are rarely used as deep discharge/deep cycle batteries.

Motorcycle and Powersports batteries come in numerous sizes, capacities, CCA/MCA values, terminal posts types, and orientation and similar. When buying a new battery for your vehicle, be sure to get a battery that may fit your battery compartment, that can be regularly charged using onboard battery charger (alternator, for example) and that the battery is strong enough to easily crank your vehicle's engine, even during low temperatures.

The list of the most popular brands is rather long, with some of the most reputable brands being: Chrome, Deka, Duralast, EverLast, EverStart, Exide, Extreme Battery, Kinetik, Mighty Max, MotoBatt, PowerStar, PowerSonic, Odyssey, SigmasTek, Weize, Yuasa, etc.

Lead-acid motorcycle and Powersports batteries may be wet/flooded, Absorbent Glass Mat (AGM), and Gel-cell batteries.

Since wet/flooded lead-acid batteries feature electrolyte in a liquid form (diluted sulphuric acid) and they are not spill-proof, they are not recommended.

AGM and Gel-Cell batteries are sealed lead-acid batteries and often feature '-BS' ending in their label. These batteries can operate in almost any position, they are vibration very resistant and are practically maintenance-free.

Thus, if possible, be sure that your next vehicle's battery is either AGM or Gel-cell battery.

Lithium-ion motorcycle and Powersports batteries are 2-3 times lighter than lead-acid batteries. These batteries are commonly based on very safe lithium-iron-phosphate chemistry (LiFePO₄), but nonetheless, they also require builtin control electronics.

Built-in electronics allow some of the lithium batteries to be used as 'drop-in replacements' for lead-acid batteries and can be even recharged using the vehicle's alternator. However, not ALL lithium batteries come with this feature. Thus, be very careful when replacing the lead-acid battery with lithium 'drop-in replacement' battery - LiFePO₄ batteries are very safe batteries, but nonetheless they can also burst to flames or even explode ...

Also, lithium batteries cost much more than lead-acid batteries.

Personally, unless you are Pro-driver, go for sealed, maintenance-free AGM or Gel-cell battery and enjoy your ride safely ...

Motorcycle and Powersports Battery Cross Reference Chart

The following motorcycle and Powersports battery cross reference chart lists some of the most popular battery models - it gives their most popular labels, physical dimensions, voltage, polarity, 10h capacity, Cold Cranking Amps (CCA) and Amazon search link.

Few Notes:

- most 'official labels' start with the letter 'B', but labels starting with 'Y' are much more common.

- some manufacturers use their own letters at the beginning of the battery label: 'C' by EverLast, 'S' by SigmasTek, 'E' by Deka, 'ES' by EverStart etc. That is why it is very important to check the actual battery size and terminals type and orientation.

- again, if the label ends with '-BS', that is 'Battery Sealed' - AGM or Gel-cell battery. Also, typically the capacity of the batteries is given for 20 hour period, but for motorcycle batteries, more common period is 10h - since the difference between 10h and 20h capacity is 5-10%, this is not that important. After all, these are starting and not deep cycling batteries.

Battery Model	Dimensions L x W x H (inch/mm)	Volts & Polarity	10h Capacity CCA Amps	Amazon Link
YT7B-BS BT7B-BS	5.875 x 2.5625 x 3.6875 150 x 65 x 93	12 +/-	6.5 Ah 80-120 Amps	YT7B-BS
YTX12-BS BTX12-BS	5.875 x 3.5 x 5.125 150 x 88 x 130	12 +/-	10 Ah 180-210 Amps	YTX12-BS
YTX14AH-BS BTX14AH-BS	5.25 x 3.5 x 6.5625 134 x 89 x 166	12 +/-	12 Ah 190 - 235 Amps	YTX14AH-BS
YTX14AHL-BS BTX14AHL-BS	5.25 x 3.5 x 6.5625 134 x 89 x 166	12 -/+	12 Ah 190-210 Amps	YTX14AHL-BS
YTX14-BS BTX14-BS	5.875 x 3.4375 x 5.75 150 x 87 x 146	12 +/-	12 Ah 190-200 Amps	YTX14-BS
YTX14L-BS BTX14L-BS	6.0 x 3.4375 x 5.75 153 x 87 x 146	12 -/+	12 Ah 190-200 Amps	YTX14L-BS
YTX15L-BS BTX15L-BS	6.875 x 3.4375 x 5.125 175 x 87 x 130	12 -/+	13 Ah 230-245 Amps	YTX15L-BS
YTX16-BS BTX16-BS	5.875 x 3.4375 x 6.9375 150 x 88 x 161	12 +/-	14 Ah 200-230 Amps	YTX16-BS
YTX16-BS-1 BTX16-BS-1	5.875 x 3.4375 x 6.9375 150 x 88 x 161	12 +/-	14 Ah 200-230 Amps	YTX16-BS-1
YTX20-BS BTX20-BS	6.875 x 3.4375 x 6.125 175 x 87 x 155	12 +/-	18 Ah 270-320 Amps	YTX20-BS
YTX20CH-BS BTX20CH-BS	6.0 x 3.4375 x 6.375 153 x 87 x 161	12 +/-	18 Ah 270-280 Amps	YTX20CH-BS
YTX20H-BS BTX20H-BS	6.875 x 3.4375 x 6.125 175 x 87 x 155	12 +/-	18 Ah 310 Amps	YTX20H-BS
YTX20HL-BS BTX20HL-BS	6.875 x 3.4375 x 6.125 175 x 87 x 155	12 -/+	18 Ah 310 Amps	YTX20HL-BS
YTX20L-BS BTX20L-BS	6.875 x 3.4375 x 6.125 175 x 87 x 155	12 -/+	18 Ah 200-270 Amps	YTX20L-BS
YTX24HL-BS BTX24HL-BS	8.0625 x 3.4375 x 6.375 205 x 87 x 162	12 -/+	21 Ah 300-350 Amps	YTX24HL-BS
YTX30L-BS BTX30L-BS	6.5625 x 4.9375 x 6.875 166 x 126 x 175	12 -/+	30 Ah 360-395 Amps	YTX30L-BS
YTX4L-BS BTX4L-BS	4.4375 x 2.75 x 3.375 113 x 70 x 86	12 -/+	3 Ah 50-60 Amps	YTX4L-BS
YTX5L-BS BTX5L-BS	4.4375 x 2.75 x 4.125 113 x 70 x 105	12 -/+	4 Ah 70-80 Amps	YTX5L-BS
YTX7A-BS BTX7A-BS	5.875 x 3.4375 x 3.5625 150 x 87 x 90	12 +/-	6 Ah 90-105 Amps	YTX7A-BS
YTX7L-BS BTX7L-BS	4.4375 x 2.75 x 5.0625 113 x 70 x 129	12 -/+	6 Ah 85-100 Amps	YTX7L-BS
YTX9-BS BTX9-BS	5.875 x 3.4375 x 4.125 150 x 87 x 105	12 +/-	8 Ah 120-135 Amps	YTX9-BS
YTZ10S-BS BTZ10S-BS	5.875 x 3.4375 x 3.6875 150 x 87 x 93	12 +/-	8.5 Ah 180-190 Amps	YTZ10S-BS
YTZ12S-BS BTZ12S-BS	5.875 x 3.4375 x 4.3125 150 x 87 x 110	12 +/-	11 Ah 200-210 Amps	YTZ12S-BS
YTZ14S-BS BTZ14S-BS	5.875 x 3.4375 x 4.3125 150 x 87 x 110	12 +/-	11.2 Ah 200-230 Amps	YTZ14S-BS
YTZ7S-BS BTZ7S-BS	4.4375 x 2.75 x 4.125 113 x 70 x 105	12 -/+	5-6 Ah 100-130 Amps	YTZ7S-BS
YB12A-A SB12A-A	5.25 x 3.125 x 6.25 134 x 80 x 159	12 +/-	12 Ah 150-165 Amps	YB12A-A
YB14L-B2 SB14L-B2	5.3125 x 3.5625 x 6.5625 135 x 90 x 167	12 -/+	14 Ah 175-190 Amps	YB14L-B2

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Why Motorcycle Batteries Die?

There are many reasons why motorcycle batteries die. As the battery is constantly charged and discharged, this process causes minor changes on the battery plates, and over time, these changes accumulate, causing the battery cells to fail over time.

Wet/flooded cells can easily lose electrolyte if regularly overcharged, causing electrolyte levels to drop below a safe level, which in the end may cause the cells to fail.

When AGM/Gel-cell batteries are overcharged, battery/cell gassing may occur, causing the whole battery to fail.

High temperatures increase self-discharge rate and shorten the battery lifespan - if possible, when the vehicle is not in use during the summer heat, keep it in the shade or even in an air-conditioned area.

Cyclic use below 50% SoC (State of Charge) or above 50% DoD (Depth of Discharge) can significantly shorten the operating life of lead-acid batteries, especially of those designed as starting/cranking batteries.

In order to prolong the operating life of your lead-acid batteries, keep the terminals clean, when the vehicle is not in use, keep it in the air-conditioned area especially during summer and if possible, disconnect the battery in order to prevent parasite loads from draining the battery.

Also, if possible, connect the battery few times per year to the smart AGM battery charger - such chargers are not expensive (not cheap either!), but they can analyze the battery and charge it fully according to the battery's condition, they can maintain the battery charger over a long period of time (chargers act as maintainers as well) and if required, they can normalize/balance the individual cells.

Long Story Short: despite being relatively small and compact, motorcycle batteries are able to provide large burst of current, cranking surprisingly large engines. So, whatever you do, be sure to know what are you doing and stay safe ...