DC 5V 1A Board for i-ion/Li-PO LiFePO4 Battery mini MPPT Solar Charge Controller 4.2V/3.7V 3.6V/3.2V Charger Module

Product Description

Product Name:DC 5V 1A Board for i-ion/Li-PO LiFePO4 Battery mini MPPT Solar Charge Controller 4.2V/3.7V 3.6V/3.2V Charger Module

Packing list:

1 PCS 1A 5V MPPT Solar Controller for 3.7V 4.2V Li-ion Li-Po/ 3.6V LiFePO4 Batteries

Description:

4.2V Li-ion(Li-PO) OR 3.6V LiFePO4 Battery Charger for Solar-Powered Systems

Power supply voltage DC 4.4-6V,Charging output voltage DC 4.2V/3.63V;

The maximum charge current / output current is 1A, but you can change the current by changing the value of the R1 resistor.

Automatic charge current adjustment based on the output capability of input power supply

Suitable for Solar-Powered System

Precharge Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage of Charge

Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating

Automatic Low-Power Sleep Mode When Input Supply Voltage is Removed

C/10 Charge Termination

Automatic Recharge

Battery Overvoltage Protection

Led indicator :
''CR'' LED is charge status indicator
''OK'' LED is fully charged OR Constant voltage mode;

Operating Ambient Temperature－40℃ to ＋85℃

Size 24mm x 12mm x 2.6mm
Weight : 1g

If you need a chip brochure please contact me

The on-chip adaptive cell can adjust charging current automatically based on the output capability of input power supply, so SDBK03TA is ideally suited for the solar-powered systems, or the applications that need to charge lithium-ion battery or lithium polymer battery with an input power supply whose output capability is limited.

If your solar panel is 5V, then you can use it directly. Of course, the module can also be powered by a 5V DC power supply.

If your solar panel is larger than 5V(e.g. 6V 9V 12V 18V 24V 36V 48V), you can convert it to 5V with DC-DC buck module(e.g. DD2712SA_5V/DD8024TA_5V).

The charging current can be changed by changing the value of resistor R1

0805 1% SMD resistor is recommended

Pros & Cons

Pros

Compact size (24x12x2.6mm) ideal for portable solar projects.
MPPT technology maximizes solar efficiency for Li-ion/LiFePO4 batteries.
1A output suitable for small devices like drones or wearables.
Supports multiple voltages: 4.2V, 3.7V, 3.6V, 3.2V.

Cons

No certification provided, may lack safety standards.
Limited to 1A current, not for high-power applications.
Small size might complicate soldering for beginners.
Ships from China, potential delays in delivery.

Common Questions

What battery types is the DC 5V 1A MPPT solar charge controller compatible with?

Compatible with 4.2V/3.7V Li-ion/Li-PO and 3.6V/3.2V LiFePO4 batteries.

What are the dimensions and weight of this mini solar charger module?

Dimensions are 24mm x 12mm x 2.6mm with a weight of 1g, making it ultra-compact.

What is the maximum charge current and input voltage for this board?

Supports 1A charge/output current with DC 5V input using MPPT technology for efficient solar charging.

How do you use this solar charge controller for Li-Po batteries?

Connect to solar panel input and battery output; it automatically handles MPPT charging for 3.7V/4.2V Li-Po or similar.

Where is this charger module shipped from and what certification does it have?

Ships from Mainland China with no specific certification listed, packed as 1 PCS per order.

Specifications

Product Description

Pros & Cons

Pros

Cons

Common Questions