3A high-current rechargeable polymer lithium ternary battery supports TYPE-C rechargeable mobile phone

3A high current fast charge/discharge, suitable for 3.7V 18650 polymer lithium battery charging

The TYPE-C port supports input/output charging of mobile phones, and supports charging while playing

Intelligent identification of load, automatic standby

Output over-current, over-voltage and short-circuit protection, input over-voltage, over-charge, over-discharge and over-current discharge protection

Product parameters:

Name: lithium battery charging and discharging integrated 5V to 4.2V

Interface: TYPE-C interface, TYPE-C interface+USB interface

Size: single TYPE-C model: length, width and height: 26 * 19 * 4.9mm (excluding the protruding part of the USB port of the key)

TYPE-C+USB model: length, width and height: 26 * 19 * 12mm (with USB model including USB height)

Function support:

3.1A Synchronous boost conversion

3A synchronous switch charging

Support filling while placing

Boost efficiency up to 93%

4 LED power display

Automatic detection of phone insertion and withdrawal

Double-click to close the output and click to open the output

TYPE-C supports single-port input and output

Mobile phone charging current intelligent identification DCP

Intelligent identification of load, automatic standby

Output overcurrent, overvoltage and short circuit protection

Input overvoltage, overcharge, over-discharge and over-current discharge protection

instructions:

1. Before connecting the battery, connect the board to the mobile phone charging head through the type-c data cable, and check that the four lights are on in turn to confirm that the module chip functions well.

2. Measure the prepared battery voltage with a multimeter to ensure that the battery voltage is between 3.0-4.2V. If the voltage is higher or lower than this range, the battery may be broken or not suitable for the battery type.

3. After ensuring that the battery has no problem, do a good job of static protection, prepare thick wire for welding, pay attention to the positive and negative electrodes, and connect the reverse board must burn.

4. The charging input can be connected to the charging head through the type-c interface, or connected to 5V through the blue marked interface in the figure above. The input current of port C should be greater than the input current of the welding interface (the input battery terminal of port C can be charged for 3A, and the maximum input battery terminal of the welding interface can be 2A).

explain

1. This module is equipped with lithium battery charging and discharging protection. If the battery is equipped with protection, please remove it. The battery capacity should be large enough to output 3.1A current.

2. The battery cable should be short and thick, with at least 0.9 square centimeter of wire core. 3. If the output current of this module is less than 7OMA, the output will be disconnected.

4. If you need to use the soldering wire output, it is recommended to use the one with USB interface. Output voltage of single TYPE-C port that cannot be soldered

5. The single C port can only be used to charge the mobile phone, because the chip has a protocol, and will not output voltage without a successful handshake.

matters needing attention:

◆ The battery can only be connected in parallel (the number of parallel connection is unlimited), and cannot be connected in series. The main board will be burned if connected in series.

◆ The wire connected to the battery outside the main board should be able to withstand a current of more than 6A, and at least use copper wire of more than 0.9 square meters, while the common wire should use 1.5 square meters. It is not necessary to be too thick, but it cannot be too thin. Too thin will have potential safety hazards. (Because the battery terminal current is high)

◆ The motherboard is equipped with a protective chip, and the battery does not need to be equipped with a protective board. Unless your protective board can pass a current of more than 6A, if you have a protective board, please remove it and connect it directly to our motherboard. (Because the built-in device can't be over-current, it can be protected as soon as the output power is large)

◆ Please don't charge your mobile phone and ask why. In short, you can't use it this way. The mobile phone that needs to be charged must be welded and welded (improper operation will cause the main board to break down, how can the main board not be charged quickly, how can the main board be powered off and restarted, etc., please operate according to the requirements)

◆ 3.7V/4.2V 18650/polymer/ternary lithium battery can be used for the battery. Large monomer can be used, and multiple 18650 batteries can also be connected in parallel. Ferrolithium batteries, disposable dry batteries, nickel-hydrogen, lead-acid batteries, nickel-cadmium batteries, etc. cannot be used. The battery cannot be connected in series.

◆ All power supplies will generate heat, which is the common sense of electronics. Everyone's products are the same. If they do not generate heat, the current will not be limited to 2.4A. It is not very good to make 10A and 100A? The cost and size of the board are here. This module uses mainstream chips from large manufacturers, with good efficiency and performance. It is safe to use.

How to judge the quality of a module:

1. After receiving the module, do not connect the battery, directly plug in the charging wire 5V, wait for 10 seconds, and then the four lights will light up, and the last light will flash.

2 Use a multimeter to measure the positive and negative poles at the battery end. The normal voltage is about 4.2V.

3. All the above are normal, indicating that the module is in good condition, otherwise it is damaged.