Feature:1. Parallel Charger: Supports parallel and balanced charging of 5 groups 1S 3.7V lithium battery, or 6 groups 2S 7.4V lithium battery, or 6 groups 3S 11.1V lithium battery.2. Safe in Charging: Equipped with 20Z thick copper foil, the parallel charging board with short circuit protection can withstand 80A current.3. Wide Application: Widely used in machinery industry, automobile industry, construction industry, railway, electronic industry and so on.4. PCB and Silicone: Combining premium PCB and silicone materials, the charging expansion board is not likely to malfunction and very durable.5. Easy to Install: Designed to have a compact size and a light weight as well, the balance charger board is very easy to install in minutes.Specification:Item Type: Parallel Charging BoardMaterial: PCB, silicone. Use: Widely used in machinery industry, automobile industry, construction industry, railway, electronic industry, power plant, etc. .Package List:1 xParallel Charging Board1 x Connecting Cable