High-Quality 4S BMS Tester for Ebike Battery Packs
Precision-engineered for accurate testing of 4S battery management systems with ±0.1% voltage measurement tolerance. Features a durable ABS casing with reinforced copper contacts for long-lasting performance. Ideal for professional technicians and hobbyists, this tester quickly diagnoses faults in ebike battery packs, ensuring optimal protection board functionality. Its compact, ergonomic design allows for easy handling during workshops or field repairs. Compatible with most 4S lithium battery configurations, delivering reliable results for DIY projects, EV maintenance, and industrial applications. Bulk orders available at unbeatable wholesale prices—perfect for resellers and repair shops.