XL-MH9955 5 Series Lithium Battery Protection Circuit Board 21V Power Tools Lithium Drill 18650 Li ion Battery Module(MH9955 )

1、Adopting mature 5 series dedicated lithium battery protection chip for central control, featuring high integration and high sensitivity.

2、By detecting the charge and discharge current, voltage and ambient temperature of each battery, it can realize the protection of overcharge, over discharge, discharge over current, short circuit, charge over current, temperature and other real-time protection.

3、 The adjustment of the parameters can also be realized by an external circuit.

4、Widely used on battery packs for power tools using 18650 lithium batteries.

5、High-quality electronic components ensure the stable and reliable performance of the lithium battery protection board.

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div.Section0{page:Section0;}Item TypeLithium Battery Protection Circuit Board

ModelXL-MH9955（MH9955）

Number of Series5 SeriesVoltageCharging Voltage21V Single Charge Voltage3.85/4.25VCurrentContinuous Discharge Current8-20AOvercharge ProtectionOvercharged Single Section Detection Voltage3.85-4.25VOvercharge Protection Delay1SOvercharged Single Section Recovery Voltage3.75-4.13VOvercharge Protection Release Delay1mSOverdischarge ProtectionOver-Discharge Single-Section Detection Voltage2-2.8VOver-Discharge Protection Delay1SOver-Discharge Single-Section Recovery Voltage2.5-3.0VOver-Discharge Protection Release Delay100±20mSOvercurrent ProtectionOvercurrent Detection Voltage0.1-0.4VOvercurrent Detection Current30±5AOvercurrent Detection Delay1SRecovery StatusAutomatic RecoveryShort Circuit ProtectionWith Or Without Short Circuit Protection