21V Rechargeable Lithium Battery Set for Electric Power Tools with Level Indicator

About this item

• There are two different capacities of 5pcs lithium battery cores or 10pcs lithium battery cores for you to choose, you can choose according to your demands.
• Built-in LED power indicator helps you get work done more easily, it's timely to recharge, help you monitor the battery charging status and check if the battery is in nice condition.
• Built-in integrated microchip with stable working performance, prevents overcharging and self-discharge, provides multiple protections and stable voltage circuit.
• It adopts a fine quality plastics material housing, with impact resistance and shockproof design, wear resistance and with fine durability, can provide long service time.
• Temperature regulation, overtime safeguards, overcharging prevention, overcurrent safeguards, overpressure prevention, and equipped with protective panels to shield the battery.