High-Capacity 21700 Li-ion Battery for Power-Hungry Applications
Premium-grade 3.7V lithium-ion battery with multiple capacity options (4000mAh–5000mAh), engineered for high-drain devices. Features a robust 5C discharge rate, ensuring stable power delivery for demanding applications like e-bikes (24V/36V/48V battery packs), power tools, and portable energy storage.
Ultra-Durable & Precision-Crafted
Constructed with high-density NMC cells and reinforced steel casing for superior thermal stability and puncture resistance. Advanced BMS protection prevents overcharge, over-discharge, and short circuits, extending lifespan to 800+ cycles.
Versatile & Reliable Power Solution
Ideal for DIY e-bike conversions, solar backups, RC models, and industrial equipment. Backed by global wholesale pricing—bulk orders available with guaranteed lowest rates.