25.9V 39000mAh high‑capacity drone battery

1 Product Introduction

This 25.9V 39Ah 7S lithium battery pack delivers stable and reliable power output well-suited for a wide range of industrial and mobile power applications. Designed with 1C standard charging and up to 3C continuous discharge capability, it reliably supports high current load requirements while maintaining steady, consistent performance throughout the discharge cycle. The battery features a 29.8V limited charge voltage and 19.2V cut-off voltage, built to safeguard individual cells against damage and effectively extend the overall service life of the pack.

Boasting a compact dimension at 7990211mm and a total weight of 3.15kg, this battery pack is lightweight and space-efficient, making it simple and convenient for seamless equipment integration and quick installation. Constructed with high quality lithium cells and fully integrated protection circuits, this battery pack actively prevents overcharge, over discharge, over current and short circuit risks, helping to ensure consistent and safe operation across a variety of different working environments.

We are a direct manufacturer supplying battery packs backed by strict quality control protocols and complete full production traceability for every unit. Flexible customization options are available to accommodate different dimension, connector and communication requirements to match your unique system design. Our factory supports efficient bulk order delivery paired with dependable after sales service, all tailored to reliably meet your project power supply demands.

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.