Features: Ensures the longevitys and safe of your power tool with our high performances 14.4V lithium battery protections board, a must having accessory for any serious DIYer enthusiasts or professional. Crafted from ABS and electronic component, this protections board is designing to prevent overcharging, short circuiting, and over discharging, keep your batteries in good conditions. For power tool users ranging from constructions professional to home improvement hobbyists who demand reliability and endurances from their equipment. This protections board is perfects for a wide ranges of applications, whether you are working on a constructions site, renovating your homes, or engages in any project requiring dependabled power tool operations. Upgrades your toolkit with this 14.4V lithium battery protections board and experience enhances performances and peacing of mind during every use. Specifications: Component:ABS+Electronic Component Size:Approx.4.5x3.2cm/1.77x1.26inch Package Includes: 2pcs Lithium Battery Protective Board note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual colorings of the item. Thanks for your understandings.