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E-bike battery, range and charging guides
Everything about the most expensive part on an e-bike: what watt-hours mean for range, how to charge and store a pack so it lasts, and the connector standards that decide what fits.
Understanding your e-bike battery
An e-bike battery is the part that most affects both your range and your running cost, and the one most misunderstood. These guides explain the numbers printed on the pack, what really decides the distance you get on a ride, how to make a battery last, and the safety standards a good pack should meet.
They share the same sourced data as the fitment tool, so once you understand your pack you can find the exact replacement that fits it.
Capacity, range and care
Watt-hours set how much energy a pack holds, but the range you get depends far more on assist level, weight, terrain and temperature. The range guide breaks down every factor. The care guide covers the charging and storage habits that extend a lithium pack's life, since heat and sitting full or empty are what age it fastest.
Getting these two things right, buying the right capacity and then treating it well, is the difference between a pack that lasts years and one that fades early.
Connectors and standards
The connector on the charge port decides which charger fits, and there is no universal standard: the big systems use proprietary round ports while conversions use generic barrel and DC plugs. The connector guide explains how to identify yours, and the safety standards UL 2849, EN 50604 and UN 38.3 that a quality pack and charger are tested against.
Find the exact part that fits your e-bike
Open the Fit My E-bike toolBattery, charger and adapter by drive systemFind e-bike battery on eBayaffiliateRelated
Sources: Manufacturer specifications, e-bike statute and government guidance, cited on each linked page