Battery Guides
Practical guides to choosing, measuring and documenting an e-bike or e-scooter battery.
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The photos that help us check your battery
We can see ur bike very clearly. The tiny plug in the corner? Cannot. Here’s what to photograph so we can actually help.
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What do the battery numbers mean?
V, Ah, A. Three different things. Don’t compare the biggest number on each listing and hope they mean the same thing.
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A battery for a different-shaped space
Got a step, a narrow neck or a frame tube in the way? Show us the whole shape before deciding how much battery can go inside.
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Planning an external battery?
Before the battery size, show us where it will sit. Mounting, moving parts and the cable route need space too.
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Which charger does my battery need?
The plug goes in. Good. Now check whether the charger is actually meant for that battery before switching it on.
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Looking for battery cells?
Need a loose cell, or need a battery for ur bike? Different thing. Let’s get u to the right one.
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Will the battery fit the space?
“Roughly this big” is how u end up with a battery that fits until the lid goes on. Measure the usable space, including the bits in…
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Which battery fits my bike?
“Same model, can use right?” Maybe. Show us the version, battery mount and connector first. The name on the bike is only the start.
Got a listing or a label to check?
Send it over. Tell us what u ride and what u want to know.