20pcs 3.7V 4.2V 18650 Lithium Lion Battery Protection Board Charger Discharge Protect DD04CPMA

Description

Features: Overcharge protectionOverdischarge protectionShort circuit protectionOvercurrent protectionProtect a single 3.7V lithium batteryProtect multiple 3.7V lithium batteries (no more than 10 recommended) Parameter: Overcharge detection voltage: 4.28±0.05VOvercharge release voltage: 4.26±0.05VOverdischarge detection voltage: 2.5±0.1VOvercurrent detection current: 1-3AOvercurrent protection: 3.2±0.2ASize: 12.6x10.2x2.1mmWeight: 0.34 g Note: Please charge again and activate the protection board. Otherwise there is no voltage output Wiring: B-connected to the battery negativeB + connected battery positiveP + connection charger / load positiveP-connector charger / load negative Application: 3.7V lithium battery 18650TP4056 charging module Packing includes:  20 x 3.7V 4.2V 3A charger overcharge protection board