# DC-DC Charge Discharge Integrated Module (5V/2A)

**Type:** Product page · **SKU:** DFR1026 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/dc-dc-charge-discharge-integrated-module-5v2a.html ([markdown](https://core-electronics.com.au/dc-dc-charge-discharge-integrated-module-5v2a.html.md))

This is 5V/2A charge-discharge integrated module with battery protection can boost 3.7V/4.2V lithium batteries to 5V....

## Pricing

- **Price:** $4.75 (inc GST) — $4.32 AUD, exc GST
- **Quantity discounts:** 6+ $4.10 (exc GST) · 12+ $3.93 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 4 today, and up to 500 more in 8–12 days.

## Description

This two-in-one DC-DC charge and discharge module offers a max 2A load current and 5V output (Normally open). It features 4 levels of charge/discharge electricity indication and button-controlled output. The module comes with a built-in power management circuit that boosts a lithium battery to 5V and supports charging and discharging simultaneously. Besides, it has battery protection which makes it applicable for batteries without a protective board,

This module can be applied to car charging retrofit, DIY mobile power bank, and mobile phone/laptop portable charging devices.

Note: The KEY function is invalid in charging mode. In discharging mode, short press the button once to enable output, and the indicator turns on; Long press for about 10s to disable the output, and the indicator turns off this time. The indicator goes off after 35s when there is no operation in discharging mode. Ensure that the total output power is less than the total input power if you want to run your project indefinitely.

**Pin Definition**

![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/2_54867073795.jpg)

**Wiring Instruction**

Charge and discharge

![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/3_2433432826d.jpg)

Charge only

![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/4_298618bba1a.jpg)

Discharge only

![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/5_3000271890c.jpg)

**LED Indication**

![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/6_851132f6261.jpg)

### Features

- 4 levels of charge/discharge electricity indication
- Button-controlled output
- Built-in power management circuit
 
### Applications

- Car charging retrofit
- Driving recorder power supply
- DIY mobile power bank
- Mobile phone/laptop portable charging device
 
### Specification

- Charge Voltage: DC 4.6V to 5.4V(Typical 5V)
- Input Current: 2A-3A
- Charge Current: 0-2.1A
- Fully-charged Voltage: 4.2V±1%
- Charging quiescent current: 100uA
- Discharge Current: 0-3.5A
- Discharge quiescent current: 50uA
- Output Voltage: 5V (Always on, no low-current shutoff)
- Output Current: 0-2.1A
- Boost Efficiency: =92%
- Charge Efficiency: =91%
- Discharge Efficiency: =96%
- Ambient Temperature: -20°C to +85°C
- Pad Pitch: 2.54mm
- Pad Hole Diameter: 1mm
- Dimension: 25\*16mm/0.98\*0.63”
- Lithium Battery Protection: over-current, over-voltage, over-temperature, short circuit protections
 
### Parts List

- DC-DC Charge Discharge Integrated Module(5V/2A) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/D/F/DFR1026-1.jpg)