Most Popular Motorcycle and Powersports Battery Sizes

pirate battery ytx20hl bsMotorcycle 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?

weize battery ytx20l bsThere 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 ...