High-Precision 5V 20A Lithium Battery Capacity Tester
Ultra-accurate discharge analyzer for Li-ion cells with 0.1% voltage resolution and 20A max load, ensuring reliable battery health diagnostics. Features industrial-grade aluminum heat sink and upgraded cooling fan for stable long-term testing. Wide compatibility with 18650, 21700, and pouch cells—ideal for DIY power banks, EV battery packs, and solar storage maintenance. Real-time LCD displays voltage, current, and capacity with auto-cutoff protection. Engineered for bulk testing in labs or repair shops, backed by CE-certified safety. Ships with test leads and alloy clamps for immediate professional use. Wholesale pricing available for resellers and large-scale projects.