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Most SLA (Sealed Lead Acid) batteries will be 12 volt batteries. If you are running at 24 volts you'll need two batteries, 36 volt requires 3 batteries, and 48 volts requires 4 batteries. It's pretty simple math. Some teams build “battery packs” consisting of multiple batteries, which can make charging and swapping batteries a little easier.
Note that Leaf Cells tend to come in packs that are 7.3 volts each, so you'll need to do the math like so:
Desired Voltage | Actual Voltage | Number of Leaf Cells |
---|---|---|
24 | 21.9 | 3 |
24 | 29.2 | 4 |
36 | 36.5 | 5 |
48 | 43.8 | 6 |
48 | 51.1 | 7 |