MakerFocus 4pcs 18650 Charging Board Dual USB 5V 2.4A with Overcharge Overdischarge Protection

LED digital display status:
The LED digital screen displays the current battery charge while charging.
When discharging, the LED digital screen displays the current power, and the display is saved in about 30 seconds (double-click the button to resume display).
The system will provide an accurate battery indication after a complete charge and discharge.

Normal Parameters
Size: 6.5 * 2.5 * 0.1cm
Weight: 10.8G
IR of PCM : ≤65 mΩ
Allowed 0V change: Yes
Constant current: 2.4A
Dual output current: 5V 2.4A
Input voltage B+ to B-: 3.0 - 4.2V
Charging cable: support Iphone and Android three USB Cables.
Button function: Press and hold the button after standby, the LED digital screen displays the power.

Technical Specification
-Prevent Overcharge Protection
Detection voltage: 4.20±0.05V
Release voltage: 4.100±0.05V
Detection delay time: <200 ms

-Prevent Overdischarge Protection
Detection voltage: 3.0±0.10V
Release voltage: 3.10±0.10V
Detection delay time: <100 ms

-Short Circuit Protection
Short detection delay time: <50 uS
Release Conditions: Cut off load

-Normal Current Consumption
Normal current consumption of PCM: Max 60uA     
Stanby current consumption: Max 50uA

-Suggest Working Conditions
Max continuous charge/discharge current: 1.5/2.4A
Suggest working temperature: -5～45℃

Note:

The B+ and B- connected to the boosted battery must not be reversed.
This module is a portable backup power supply with an input that matches the 5.0V adapter to charge the internal battery. Use built-in battery for portable device to provide >5.0V/3.0A USB2.0 supply output for external devices.
Protection: overcharge protection, overdischarge protection, short circuit protection, constant current.
Charing cable: support three USB data cable charging, including Iphone and Android.
Size: 6.5 * 2.5 * 0.1cm; Dual output current: 5V 2.4A; Input voltage B+ to B-: 3.0 - 4.2V.

Packing List:

4 * Dual USB 5V 2.4A 18650 Charging Board