This 3.7V Battery Charger TP4056 module is made for charging rechargeable lithium batteries using the constant-current/constant-voltage (CC/CV) charging method. In addition to safely charging a lithium battery, TP4056 BMS Board also provides the necessary protection required by lithium batteries. The TP4056 is suitable for USB power and adapter power supplies. Due to the internal PMOSFET architecture and anti-reverse charging path, no external isolation diodes are required. Thermal feedback of the Protection Circuit automatically adjusts the charge current to limit chip temperature during high power operation or high ambient temperature conditions. The charging voltage is fixed at 4.2V, and the charging current can be externally set by a resistor. When the charging current drops to the set value of 1/10 after reaching the final float voltage, the TP4056 Li-ion Battery Charger Module will automatically terminate the charging cycle. When the input voltage (AC adapter or USB power) is removed, the TP4056 automatically enters a low current state, reducing the battery leakage current to less than 2uA. The 1A Micro USB Protection Board TP4056 can also be placed in shutdown mode when there is a power supply, reducing the supply current to 55uA.

Features Of Two-in-one Module 3.7V Lithium Battery Charger Protection Board:

• Led indicator: red is charging Green is fully charged.
• Current Protection: Yes
• Inversed polarity: NO.
• Use mature charging chip TP4056 for simple peripheral circuits, good protection performance, and high charging accuracy.
• Fully machinery automated processing, all patch parts manufacturing.
• It is small size and lightweight
• specially designed for a single lithium battery charging
• It has battery temperature sensing
• Undervoltage Lockout
• Automatic Recharge
• LED status pins for charging and termination

Specifications Of 1A 18650 lithium battery protection board Micro USB:

1. Charge module: Linear charging.
2. Current:1A adjustable.
3. Charge precision:1.5%.
4. Input voltage:4.5V-5.5V.
5. Full charge voltage:4.2V ± 1%
6. Led indicator: red is charging Green is fully charged.
7. Input interface:micro USB/mini usb/type-c usb
8. Work temperature:-10° to +85°.
9. Inversed polarity: NO.

Using the module:

• Connect micro USB cable for power, or 5V DC to pads marked IN+ and IN- on the left-hand side of the module
• Connect cell to charge to B+/B- pads on the right-hand side of the module.
• A load (something for the battery to power) can be connected to the OUT+/OUT- pads on the right-hand side
• Important! Disconnect load when charging
• The red LED indicates charging in progress, the green LED indicates charging has finished.
• Never charge your battery at a rate greater than 1C.

NOTE:

• Ampere meter can only be connected to a 5v input end of the module.
• It is better than the charging current is 37% of the battery capacity. If you charge the battery of 1000mAh, a current of 400mAh is enough.
• The connection wire should not be too thick.
• If the input voltage is too high, like 5.2v, the current will be less than 1000mA, it is normal. It is a protection function, auto-subtract the charging current to avoid burn damage to the chip.

Package Include:

• 1x  Lithium Battery 18650 Charger Module 1A 3.7V With Battery Protection BMS TP4056

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