3pcs Upgrade Version Charging Mobile Power Motherboard Lithium Battery Charging Board For 4/8 Section Universal DIY

Product Features: 4 LED lights display power, intelligent automatic shutdown in non-working state; The motherboard is protected, with overcharge and over discharge protection (3.2-4.2V or so) The size of the motherboard is about 18mm wide and 72mm long. Pay attention to the following points when installing the product: 1. The batteries should be connected in parallel, and the voltage should be between 3.2 and 4.2V to work. 2. The battery is connected to the motherboard B+ negative connection B- installed anti-burn motherboard 3. New and old batteries, high internal resistance batteries, large capacity gaps are not recommended for mixing 4. Tick the shell kit. The battery needs to be connected in parallel. Press the positive and negative poles to solder the motherboard. 5. The outer casing kit requires a flat head with a 18650 battery. The tip cannot be used. Available batteries: 3.1V-4.2V polymer lithium battery, 18650 battery, mobile phone battery, flat battery, MP3 battery, etc. (Note: If the battery has a protective plate, it needs to be removed and connected to the motherboard) Unavailable battery: dry battery, battery, 1.2V rechargeable battery, nickel hydrogen battery, 3.2V iron lithium polymer lithium battery. Package includes: 3 x Lithium Battery Charging Board