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7.4V / 3A 2 Series 18650 Lithium Battery Protection Board Module
Features: - Applicable Battery: 2 series of 3.7V rechargeable lithium batteries£¬ such as 18650£¬14500£¬ etc. - It has protection condition automatic recovery£¬ and it need 4.2-5V power to be active. - overcharge detection voltage : 4.25-4.35v±0.05v - over discharge detection voltage : 2.3-3.0v±0.05v - over current detection current: 3A - working current: 1A (Continuous) Protections: - Short circuit protection - Overcharge protection - Over-discharge protection - Over-current protection Pins description: P-: negative of input or output power P+: positive of input or output power B-: negative of battery B+: positive of battery MB: connection point between the two batteries