Скачать или смотреть Power Module Board for Lithium Battery Charging Protection

Type-C USB 5V 2A Boost Converter Step-Up Power Module Lithium Battery Charging Protection Board USB DIY Charger

Specification:

Input voltage range: 5 ~ 5.5V

Charging cut-off voltage: (4.2v/4.35v) ± 0.5%

Charging current: 2.4a ± 5%

Boost output voltage: 5V ~ 5.15v (line loss compensation)

Boost output voltage ripple: 100mV

Boost output current: 2A

Boost conversion efficiency: 92.5% (3.6V input, 5v2a output)

Function introduction：

When the load current is less than 50mA continuously, the output will be turned off.

It supports the external key, which is connected to the K point and the output negative pole. Short press to turn on the power display and turn on the 5V output. Two consecutive short presses will turn off the power display and turn off the 5V output.

When the charging current drops to 100mA after reaching the final floating charging voltage, the charging cycle will be automatically terminated.

When the battery voltage drops below 4.1V, the charging cycle starts again.

When the battery voltage is lower than 2.8V, the battery will be pre charged with a current of 180mA.

The usb-a base welding position is provided on the back of the product, which can be installed manually.

It supports discharging while charging.


https://shp.ee/sfcjzui


1S 3.7V 3A li-ion BMS PCM battery protection board pcm for 18650 lithium ion li battery

The BMS is used for li-ion battery without balancing function

Features:

1) high-accuracy voltage detection circuit;

2) terminal of the charger using high voltage device;

3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);

4) MOS transistor can control the battery charge and discharge;


Parameter:

Over charge voltage: 4.25±0.05V

Over charge release voltage:4.23±0.05V

Over discharge voltage:2.54±0.1V

Maximal continuous charging current: 2A

Maximal continuous Discharging current: 2A

Over current protection: 3A

Size: L40*W4*T3mm

Wiring instructions:
B+ is connected to the positive battery.
B- connect the battery negative.
P+ is the battery output input positive
P- is the battery output input negative


https://shp.ee/jxscew8