描述
🔋 Charge Ahead with Confidence!
- SAFETY FIRST - Multi-protect system guards against overload and overheating.
 - UNIVERSAL CHARGER - 100-240V input for global compatibility.
 - POWER UP YOUR TOOLS - Compatible with major brands for seamless use.
 - SATISFACTION GUARANTEED - Full refund or replacement for your peace of mind.
 - HIGH VOLTAGE PERFORMANCE - 21V lithium battery ensures robust power output.
 
The 21V Lithium Battery with 4.0 Ah capacity is designed for compatibility with a range of power tools, ensuring reliable performance. It features a universal charger with an LED indicator for easy monitoring, and a multi-protect safety system to prevent damage. Enjoy peace of mind with a satisfaction guarantee.