25.9V 35000mAh high‑capacity drone battery

1 Product Introduction

This 25.9V 35Ah 7S lithium battery pack delivers reliable high-power output with up to 5C continuous discharge capability, easily meeting the heavy load power demands of industrial equipment, robotics, and outdoor power systems that require sustained strong power supply. Built with carefully selected high-quality lithium cells and an integrated BMS protection system, the battery supports steady and consistent charge and discharge cycles. This built-in protection mechanism effectively prevents common risks including overcharge, over-discharge, overcurrent and short circuit, helping to extend the overall service life of the battery pack and guarantee safe and stable operation throughout use.

We are a direct manufacturer equipped with complete production and quality inspection systems covering every stage of battery fabrication. Every finished battery undergoes a full set of strict performance and safety testing before shipment to guarantee stable and consistent performance across all units. The compact dimension and optimized weight design make this battery easy to handle, install and seamlessly integrate into various devices with limited internal space. We support large-volume bulk orders and tailored customized solutions to perfectly match your different application scenarios and unique equipment requirements.

The battery features a nominal voltage of 25.9V, limited charge voltage of 29.8V and cut-off voltage of 17.5V, paired with standard 1C charge and discharge current for routine operation. It boasts excellent long cycle performance and maintains stable power output even under long-time continuous working conditions, making it an ideal power source choice for energy storage systems, mobile power units and other stationary or mobile power supply 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.