5 strings of lithium battery protection board 18V power module 21V charge and discharge board with balanced belt temperature control 30A limit 45A 5S-B530 -81032
Upper operating current :30A Upper transient current: 45A Overcharge range:4.25V士0.05V Over voltage range: 2.8V士0.05V The static current: Less than30uA Charging voltage: 21V With equilibrium current:56mA