Digital power display for easy monitoring of battery status. Equipped with a charge-discharge balance system for enhanced safety and efficiency. Perfectly compatible with for tools, ensuring seamless integration. Made from ABS flame retardant material, providing durability and fire prevention. Allows for DIY customization of battery capacity to meet specific needs. This battery assembly case is designed for those with professional knowledge and experience in DIY projects. It features a digital power display for easy monitoring and a system for safe charge-discharge balance. The sturdy ABS material ensures durability and fire resistance, making it a reliable choice for your tools. Customize the battery capacity to suit your requirements and enjoy perfect compatibility with for tools. Color: As Shown Material: plastic Package Contents: 1* Li-ion Battery Plastic Case PCB Charging Circuit Board kit Only the above package content, other products are not included. 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.