SPECIFICATIONS

Brand Name: NONE

Choice: yes

Condition: New

High-concerned chemical: none

Origin: Mainland China

Type: Module

Scope of application： DIY lithium battery charging; Small electrical appliance magic;Installing a charging port on a tablet computer；Suitable for various types of 3.7V lithium batteries, including 18650 and composite batteries.

TP4057 1A Lithium Battery Charging Board with Protection；Type-C USB C Li-ion Battery Charging Board

Dual output of charging status, no battery and fault status display

Function Introduction: When the charging current drops to 100mA after reaching the final float voltage, the charging cycle will be automatically terminated When the battery voltage drops below 405V (roughly corresponding to 80% to 90% of the battery capacity), the charging cycle resumes. When the battery voltage is below 2.9V, the battery will be pre charged with a current of 100mA.

With protection board, overvoltage protection, over discharge protection, over-current protection, over discharge protection value: 2.4V; Overcurrent protection value: 4A.

Specifications:

1. Up to 1A Programmable Linear Charging Current

2. For single 3.7V lithium battery, full 4.2V

3. Constant current/constant voltage charging with over-temperature protection

4. Soft start to limit surge current with battery reverse protection

5. Low power standby, prolong battery life

6. Dual output of charging status, no battery and fault status display

7. Can be activated at 0V, 2.9V slip current charging

8. Operating temperature -40~80℃

9. Input voltage range 4.2V~6.5V

Description：

TP4057 1A 3.7V Lithium Battery Charging & Discharging Board

TP4057 Charging & Discharging in One Board

Type-C USB C Li-ion Battery Charging Board

Constant current/constant voltage charging with over-temperature protection

Dual output of charging status, no battery and fault status display

Note:

1. The battery cannot be connected backwards, as it can easily damage the motherboard.

2. The battery terminal voltage should not exceed the product overshoot voltage.

3. Batteries cannot be connected in series, they can only be connected in parallel. The battery of parallel can be several, but not recommend too many.

Package included:

5/10PCS TP4057 1A Lithium Battery Charging & Discharging Board with Protection

(please choose the model and quantity you need,we will send the goods according to your choice.)