E-Bike Battery Testing & Repair Services

eBike Battery Diagnostic Testing & Cell-Level Repair — Cardiff Workshop Service

A failing eBike battery doesn’t always need replacing — in many cases a full capacity test, BMS fault diagnosis, or targeted cell group repair can restore performance at a fraction of the cost of a new pack. Our Cardiff workshop offers hands-on battery testing and repair services covering capacity load testing, BMS (Battery Management System) fault diagnosis and replacement, cell voltage balancing, and pack rebuilds using quality replacement cells. We work on 36V, 48V, 52V, 60V, and 72V lithium packs across triangle, downtube, and rear-rack configurations — regardless of original supplier. Common symptoms we diagnose include sudden range drop, failure to charge, cells not balancing, BMS cutout under load, and display voltage inconsistencies. Drop your battery into our Cardiff shop or contact us to describe the fault — we’ll advise on whether repair or replacement is the more cost-effective route before any work begins.