66.6V 39Ah 18S Lithium Battery Pack 3C Max Continuous Discharge 76.5V Charge Voltage 49.5V Cut Off For Industrial Equipment Electric Vehicle Energy Storage Factory Direct Supply

66.6V 39000mAh high‑capacity drone battery

1 Product Introduction          

  This 18S 66.6V 39Ah lithium battery pack is engineered for reliable high power output in industrial and electric mobility applications. It supports up to 3C maximum continuous discharge current while maintaining stable voltage performance, with 1C standard charge and discharge capability for daily routine operation. The battery features 76.5V limited charge voltage and 49.5V cut-off voltage to protect the cell system and extend service life.
  Built with strict quality control at our manufacturing facility, this battery pack is supplied directly from the factory to eliminate intermediate costs. Compact dimension of 20190213mm and total weight of 8.11kg allow flexible installation in limited space scenarios. Integrated protection mechanism safeguards against overcharge over discharge over current and short circuit, delivering consistent safe power for your equipment, electric vehicles and energy storage projects. We support customized solutions to match your unique power requirements and provide stable after sales technical support for global clients.

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.