21700 Lithium Battery Power meets Robotics and DIY Performance with this Robot GCC 3.7V 4000mAh rechargeable lithium-ion battery, designed for stable output and high-rate discharge across GCC countries. Built with IMR technology, it delivers strong current, low resistance, and reliable performance for robotics systems, Arduino projects, IoT devices, and custom battery packs.
The flat-top 21700 design ensures easy integration into welded packs and power modules, while its high capacity and long cycle life provide extended runtime for robotics, portable electronics, and high-power DIY applications. Durable, efficient, and stable, it is ideal for STEM robotics, engineering projects, and advanced electronic builds.
For safe and optimal use, pair with a compatible charger and battery management system (BMS).















