25.9V 28000mAh high‑capacity drone battery

1 Product Introduction

Engineered for demanding mobility and off grid power applications, this 25.9V 28Ah 7S lithium ion battery pack delivers a stable 725Wh of usable energy within its compact 79 × 77 × 197 mm form factor, while weighing only 2.31 kg for easier handling and installation in space-limited setups. Built around high grade lithium cells paired with a carefully matched 7S configuration, the pack charges up to 29.6V at the standard 1C rate, supports continuous discharge up to 3C under active load with a 19.2V cut off threshold, and maintains a smooth, flat voltage curve that helps your scooter, e bike or standalone power system hold steady performance longer without premature voltage sag during operation.

The robust deep cycle design is engineered to withstand thousands of charge discharge cycles under typical operating conditions, making it a dependable, long-lasting power solution for electric scooters, motorcycles, e bikes, lawn mowers, emergency backup power units and compact small solar storage systems. Shipped directly from our manufacturing facility, every single battery pack goes through a complete full inspection and formal charging performance testing process before final packaging. This direct factory model gives you access to factory direct pricing, consistent batch-to-batch quality control, and flexible lead times that accommodate both small sample requests and large-volume bulk orders.

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.