Hobby-Ace XT60 LiPo Battery Balance Charging Board Plate 2-6S Parallel Connect Plate The XT60 Balanced Charging Board used for simultaneously charging multiple lithium batteries(including LiPo, LiFe, and Li-ion types) in parallel Support 6 pairs 2S,6 pairs 3S,6 pairs 4S,6 pairs 5S,6 pairs 6S balance charge Built-in short circuit protection, Convenient to charge and balance up to 6 lipo batteries at the same time when used with a balance charger Prevent Short Circuit : 20Z of thick copper foil sustainable resistance to flow 80A It can prevent each cell overcharge, so it can improve the balance efficiency. And the later period of the balance charging cycle is shorted substantially.