21.9V 35Ah Lithium ion Battery Module 766Wh High Energy Density Rechargeable Lithium Battery Pack Factory Direct Supply for Industrial Equipment Energy Storage and Heavy Duty Application
21.9V 35000mAh high‑capacity drone battery
1 Product Introduction
This high performance 21.9V rechargeable lithium ion battery module features impressive 766Wh power capacity and superior weight energy density to deliver steady dependable power for heavy duty machinery and energy storage projects. Fully compliant with UN38.3 transportation requirements the battery completes a full series of rigorous safety tests covering altitude simulation vibration shock external short circuit and crush which grants great reliability and extended service life under harsh operating environments
As direct manufacturer we offer genuine factory supply with full in house quality management across every production phase Each battery undergoes thorough inspection prior shipment to maintain uniform quality performance We welcome bulk orders and support custom specifications Complete logistics solutions for sea land and air shipment are available to satisfy your power supply needs for industrial devices mobile power systems and other commercial 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 module
,766Wh rechargeable lithium battery pack
,industrial equipment energy storage battery
-
High Safety 27000mAh 22V 599Wh Solid State Lithium Ion Battery Pack 6S High Energy Density For Industrial Multi Rotor UAV Survey Inspection Drone Robotic Mobile Field Working Devices UN38.3 Verified
High Safety 27000mAh 22V 599Wh Solid State Lithium Ion Battery Pack with 254.68Wh/kg energy density for industrial UAVs and field devices. UN38.3 certified, compact design (213×91×65mm), 2.352kg weight, featuring improved thermal stability and global transport compliance. -
Solid‑State Lithium‑ion Battery Pack 44.4V 27Ah 1198.8Wh High‑Capacity Rechargeable Lithium Battery Durable Power Supply For Industrial Equipment Wholesale Direct From Chinese Manufacturer
Solid-state lithium-ion battery pack with 44.4V output, 27Ah capacity, and 1198.8Wh energy. Features UN38.3 certification, durable construction, low self-discharge, and direct manufacturer wholesale. Ideal for industrial equipment and heavy-duty applications. -
5.12kWh 51.2V 100Ah LiFePO4 Battery with Long Cycle Lifespan for Home Solar Energy Storage System
5.12kWh wall-mounted LiFePO4 battery with 5-10 year lifespan, Grade A cells for safety, max 15 parallel connections, intelligent BMS protection, and compact design for easy solar energy storage installation.