21V 2A AC/DC Power Supply Adapter, Lithium Battery Charger Wall Charger with Overcurrent Overvoltage Protection for Power Tools, DIY Electronics

Professional Lithium-Ion Battery Charger - This high-efficiency 21V/2A charger serves as an ideal replacement for your original lithium-ion battery charger, compatible with various devices including headlights, toy cars, delivering fast and reliable charging performance.

Advanced Safety Protection System - Engineered with built-in intelligent chips that provide comprehensive safeguards against overcharging, overcurrent, short circuits, and overheating, ensuring complete protection for your valuable lithium-ion batteries during charging cycles.

Premium Construction - Crafted from premium ABS materials, this compact charger (8.5x4.5x3cm) features fire-resistants properties and anti-interference design for safe operation in various conditions.

User-Friendly Charging Experience - Equipped with a clear LED indicator light that displays real-time charging status, and features a standard 5.5*2.5mm output port for convenient connection to compatible devices.

Universal Replacement Solution - This complete charging kit includes one power adapter (note: product version may vary randomly) designed to meet your everyday charging needs with professional-grade performance and reliability.