This product is a 20-string 72V power protection board. With equalizationSame port 45A discharge with heat sinkSize: 120*60*9mm. This board can do 5-20 series universal 40A--90A working currentContinuous current: <45ABalanced
charge: YES
Short circuit protection: YES
Applicable: nominal
3.7V battery /20S (5-20s)Function: overcharge protection, over discharge protection, short circuit protection, balance with the same port