<p>1. The is for 5 series Li-ion batteries, mainly used for electric power tools It uses special IC for 5S lithium batteries as processor to detect real-time voltage,</p> <p>2. Charge and discharge current and ambient temperature of each battery Stable various protective functions for charging and discharging, such as overcharge protection over-discharge protection and short circuit protection.</p> <p>3. Low power consumption,the working current is about 25uA and quiescent current is about 6uA. Choosing the correct protection board and applying it appropriately is vital to the your batteries</p> <p>4. Charge Voltage: 21V Single Cell Charge Voltage 4.25V Current Continuous Discharge Current 8-20A Overcharge Protection Overcharge Single Cell Detection Voltage 4.25V.</p> <p>Name:Battery Plastic Case</p> <p>Type:10 cores</p> <p>Fitment:Suitable for Power Tool</p> <p>Note:(18 650)battery cell core is NOT INCLUDED in the kit</p> <p>Colour:As Shown</p> <p>Material:Plastic</p> <p> </p> <p>Package Contents:</p> <p>1set x battery shell</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>