Fit My E-bike guides

Practical guides to measuring, sizing and choosing the right part, from the same sourced data behind the fitment tool.

How to choose a replacement e-bike battery that fitsMatch voltage, mount, connector and BMS communication so a replacement battery physically fits and actually talks to your motor.E-bike battery voltage, Ah and Wh explainedWhat 36V and 48V mean, how amp-hours and watt-hours relate, and why watt-hours is the number that actually decides your range.E-bike battery connectors and mounts explainedFrom XT60 and Anderson plugs on conversion kits to Bosch PowerTube rails and Shimano in-tube mounts, the fittings that decide whether a pack fits.E-bike range versus battery capacityWhy watt-hours sets the ceiling on range but assist level, weight, terrain and speed decide how far you really go.E-bike battery safety and UL 2849What UL 2849 and EN 15194 certify, why third-party batteries carry risk, and safe charging and storage practice for lithium e-bike packs.E-bike charger and BMS compatibilityWhy a charger must match the pack voltage exactly, what the battery management system does, and how to avoid ruining a pack with the wrong charger.How to identify and measure your e-bike batteryRead the pack label, identify the motor system, and record the mount and connector so you can find a battery that actually fits.