Overcharge and discharge protection to prevent overcharge and discharge of the batteryOvercurrent protection to prevent abnormal high current of batteryBalance protection, battery voltage balance, make battery life Stable heat dissipation, stable heat dissipation of the aluminum substrate, safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOS.Model: 14S 48V 25ADischarge current: 25AProduct name: lithium battery protection boardProduct type: PCB protection boardCharging voltage: 48VDischarge overcurrent protection value: 2-4 of continuous currentInternal resistance of main circuit conduction: Less than 20mCharging current [same port]: 10A/15A/20A/25ACharging voltage: string number of ternary battery pack X 4.2VOvercharge protection: 4.25 0.005VOverdischarge protection: 2.8 0.1VEqualizing voltage: 4.18VDischarge overcurrent protection: Detection delay: 100ms, release condition: disconnect load or chargeShort circuit protection: triggering condition: external short circuit; Detection delay: 200us; Release condition: disconnect the loadWorking power consumption: 50uAOperating temperature range: - 20 /+80 Product size: 69 x 56.9 x 10-15mm: PCB+Metalcolour: silverPackage Contents:1 x Battery protection board1 x flat cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.