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Product Description

When using lithium batteries, there needs to be a circuit protection for charging and discharging to prevent the battery from being damaged or to obtain safe power from the battery. This mobile power module is used for charging and discharging protection of lithium batteries. Compared to a typical lithium battery protection board, this module comes with 4 LED indicator lights to indicate the current battery level of the lithium battery. Please refer to the following text for detailed parameters and usage.

Product Parameters

Input voltage: DC 4.65V-5.5V

Overcharge protection voltage: 4.2V ± 1%

Overdischarge protection voltage: 3 ± 1% V

Charging current: 0-2.1A

Discharge current: 0-2.4A

Output voltage: 5V

Input protection: overcurrent, overvoltage, short circuit protection

Output protection: overvoltage, overcharge, overdischarge, overcurrent protection

Overcurrent protection value: 3.5A

Overheating protection: Over temperature protection

Working temperature range:- 20°to +85°

Boosting efficiency: up to 92%

Charging efficiency: up to 91%

Size: 16mm * 25mm * 2mm

Product Instructions

(1) Functional features: key on/off; Support simultaneous charging and discharging; 4 LEDs, 4-level power indicator; Intelligent load recognition, automatic standby, standby current less than 100uA; Adaptive charging current regulation, adaptive adapter.

(2) Key function: In discharge mode (charging mode KEY function is invalid), trigger the KEY port once to open the output; Trigger the KEY port twice in a row and turn off the output.

(3) The first time the load is connected, the output will automatically turn on. If the load is less than 50mA, the output will be turned off after 30 seconds; If the load is greater than 50mA, the output will continue to be turned on.

(4) Indicator light description

放電Discharge

充電Charge

Product Function

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