Our commitment to excellence extends beyond offering premium battery brands. We also provide customized 

solutions tailored to your specific needs. Whether you require unique battery sizes or custom pouch pack configurations, 

our experienced team is fully equipped to deliver battery packs designed according to your precise requirements.

our core focus is on lithium batteries, assembly, and customization. We are dedicated to providing our clients with 

reliable, efficient, and cutting-edge power solutions that drive innovation and performance in their respective fields.

LISHEN LS21700-40LA,

Capacity: 4000mAh 

Internal resistance: 8-10mΩ

Discharge current: 40A (10C)

working voltage: 2.75V--4.2V, standard 3.7V 

Working temperture: Charge 25-40℃ / Discharge -20-50℃

Weight: 65g

Application,

Battery car, power tools, digital products, energy storage power