50A BMS Protection Board Balance for 3s 4s 5s 12.6V 16.8V 21V Li-ion Cell Bat with Power Tool Inverter Solar Energy 5 string / 3.2V lithium

Description

--Standard voltage: 21V. --Rated capacity: 130 (mah). --Specifications: 4s/3.7V polymer batteries, 5s/3.7V polymer batteries, 4s/3.2V lithium iron phosphate batteries, 5s/3.2V lithium iron phosphate batteries, 3s/3.7V polymer batteries. --Model: lithium battery protection board. --Product types: medium rate, low rate, super high rate, high rate, others.