Product Description

Features:

Suitable for DIY universal rechargeable, 18650 lithium ion battery charger

4.20V fit almost all normal 3.7V lithium li-ion battery.
 

4.35V applies to the following scenarios:

DIY some norminal 3.80V lithium batteries charge that the 4.35V charge board is too high to use 4.3V, and the disadvantage is that it may flush up to 97% or 99%. If want to charge to 100%, recommend to buy the 4.35V version.

Name: 2A Polymer Lithium Battery Fast Charging Board (Note that it is not suitable for 3.2V LifePo4 batteries)

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, 5V 2A)

Output)

Function:

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

Support external key, connect the key to K point and output negative pole, short press to turn on power display and 5V output, continuous

Two 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 charge 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 at 180mA.

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

It supports discharging while charging.

Package include: