【Battery Compatible】Perfectly compatible with 18V lithium batteries: BL1815, BL1815N, BL1820, BL1820B, BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1850B, BL1860, BL1860B. Works seamlessly with original chargers
【Advanced Safety 】Built-in intelligent protection against over-charge, over-discharge, over-current, short-circuit, and voltage
【Intelligent LED battery level display】 Clear visibility in dark environments, high brightness LED lights display the remaining battery level in real-time, making it easy to monitor the battery status even in dimly workshops or outdoor night work
【Excellent Service】We provide professional customer service. Any problems, please do not hesitate to contact us, we will accept all opinions and make you satisfied