21.9V 35Ah Lithium Ion Rechargeable Battery Module 766Wh High Performance Battery Pack Factory Direct Wholesale For Commercial Power Supply Energy Storage Industrial Heavy Use
21.9V 35000mAh high‑capacity drone battery
1 Product Introduction
Engineered for commercial and industrial power scenarios this 21.9V lithium ion rechargeable battery module delivers 766Wh power with high energy density for long lasting stable power supply. All units complete the full UN38.3 certification including altitude simulation vibration shock external short circuit and crush tests the robust structure minimizes safety risks under complex field operating conditions.
As original equipment manufacturer we supply products straight from our production plant. Every production link follows standardized quality management protocols each battery undergoes multi item testing before shipment to secure reliable and uniform performance. We welcome bulk wholesale orders and project custom requirements. Full sea land air transport support is offered to fulfill power demands for commercial facilities industrial installations and energy storage projects.

2 Product Specification

3 Product Performance


4 Certification

5 Production, Packaging and Delivery



6 Typical Applications
Solutions for Different Scenarios, Get Best Performance Possible
The blooming low-altitude economy emerged scenarios like consumer drones, agricultural UAVs, logistics drones, and eVTOLs, etc.Battery for different scenarios requires differently, which can't be perfectly covered by current battery technology, that is, the "impossible triangle" (energy density, rate, and cycle life).
BTR provides corresponding battery solutions for diferent scenarios, giving full play to the product performance advantages,and achieving both price and performance.

21.9V 35Ah lithium ion battery
,766Wh high performance battery pack
,industrial heavy use rechargeable battery
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