SPECIFICATIONS

Application: Computer

Brand Name: diymore

Condition: New

Dissipation Power: Charge/Discharge Battery Protection Board

Model Number: Charge/Discharge Battery Protection Board

Operating Temperature: Charge/Discharge Battery Protection Board

Origin: Mainland China

Package: SOP

Supply Voltage: Charge/Discharge Battery Protection Board

Type: Voltage Regulator

is_customized: Yes

Feature:

1. 4 LED power display is more intuitive

2. This product is a lithium battery charging and discharging integrated motherboard, suitable for various types of 3.7V lithium battery, polymer battery nominal 3.7V, full 4.2V

3. The product works hard in design, materials and PCB process, so that this module can achieve considerable parameters and functions in a small volume

4.TYPE-C port supports input/output to charge the mobile phone. It supports charging while playing, and automatically detects the insertion and withdrawal of the mobile phone

5. Stable performance, the product has over-discharge protection, battery over-voltage, over-charge, over-discharge protection and so on

Product parameters:

3A (battery side) Efficient charging

2.4A Maximum output current

The output is always on 5V

Standby power consumption less than 150μA

Module terminal definition:

Type-C interface: indicates the 5V power input interface of the module. It is used as the output power supply interface without a protocol

USBA interface: Module 5V output interface, can charge mobile phones and other power supply to the device

5V: Module 5V output positive welding point (can also be used as input wire)

- : Module 5V output negative electrode welding points (can also be used as input wiring)

B+ : The module is connected to the positive battery welding point

B- : indicates the negative battery electrode welding point on the module

Note: The buttons of the above two modules only turn on the LED indicator when the LED indicator is off, and cannot control the input and output or turn off the LED indicator.

Note:

1. The battery will burn the board, so pay attention to it. Only welding is required. Release static electricity on the soldering iron and human body before welding.

2. When the module is in standby state without load, in order to optimize power consumption and detect whether there is a connection, the input voltage will drop to about 4.8V and rise to 5V voltage every few seconds to detect whether the load is connected.

3. The wiring must be welded, the line should be as thick and short as possible, and the switch cannot be added in the middle.

4. The larger the power of the module, the closer the current is to the maximum current. Heat will be greater, pay attention to heat dissipation when using.

Frequently Asked Questions:

1. Can the module be used as a UPS or can input and output switch seamlessly?

A: When the input is disconnected, there will be a short switching time between the input and the output, which is determined by the circuit

2. Can I put it while rinsing?

Answer: The input and output are the same port, that is, when the input has a voltage, the output is the same as the voltage output. Just make sure the input power is enough. Avoid instability.

3. What does the button do?

A: The button only shows the voltage used. There is no other function, the power display light of the module will be turned off in the standby state, and this button will be used to check the power.

4. Can the C port output charge the mobile phone?

A: USB port is recommended for charging mobile phones, all compatible. If you use C port, Huawei, Xiaomi and other mobile phones are OK, but mobile phones that need protocol chips such as Apple and some models of Samsung are not. Mainly, these models need to identify the chip to start charging (the module is a power output), so it is recommended to use a USB port.

Description:

1. 3A high-current rechargeable polymer lithium ternary battery supports TYPE-C rechargeable mobile phone

2. 3A high current fast charge/discharge, suitable for 3.7V 18650 polymer lithium battery charging

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

4. Intelligent identification of load, automatic standby

5. 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).

Note:

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.

3. 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

4. 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.

Feature:

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

2. Support the external button, connect the button to the K point and the output negative pole, press to turn on the power display and turn on the 5V output, press twice continuously to turn off the power display and turn off the 5V output.

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

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

5. The back of the product provides a USB-A base welding position, which can be manually installed.

6. Support discharge while charging.

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

Specifications:

Optional specifications: welded version/no welded version

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(with line loss compensation) Boost output voltage ripple :100mV

Boost output current :2A

Boost conversion efficiency :92.5%(3.6V input, 5V2A output)

Static battery current :<30uA