Hey DIYers and tinkerers! Need a reliable battery protection board for your project? This pack comes with 5 pieces of 1S 3.7V 10A Li-ion protection boards, perfect for keeping your lithium batteries safe. They’ve got overcharge detection at 4.25V ±0.05V, over-discharge protection at 2.45V ±0.1V, and can handle up to 10A continuous current. Each board uses the DW01 + 8205A chipset, measures about 35mm x 7.6mm x 2mm, and weighs just 6g. Wiring is straightforward: B+ and B- connect to your battery, P+ and P- are for your load or charger. Made from alloy, these are brand new and high quality. Great for power banks, DIY battery packs, or any electronics project. Note: colors might look a bit different due to lighting, and sizes have a small tolerance. If you run into any issues, just send us a pic—we’re here to help! Get yours and build with confidence.