SunFounder PiPower User manual
SunFounder PiPower
www.sunfounder.com
Aug 02, 2022
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SunFounder PiPower
PiPower is a power supply module for Raspberry Pi with recharging function. It can output 5V/3A power supply to
meet various Raspberry Pi usage situation. It has 4 power indicators; each indicator represents 25% of the power,
and is equipped with a power switch to turn on/off the power of the Raspberry Pi without plugging or unplugging the
power cord.
When the battery power is low, you can insert a 5V/2A Micro USB cable to charge the batteries, and the charging
indicator will light up and turn off when fully charged. You need to use two 18650 flat top rechargeable batteries. The
larger the battery capacity, the longer you use. You can choose according to your needs.
Warning: When you put the battery in for the first time or when the battery is unplugged and put in again, the
battery will not work properly, at this time, you need to plug the Type C cable into the charging port to turn off the
protection circuit, and the battery can be used normally.
CONTENTS 1
SunFounder PiPower
2 CONTENTS
SunFounder PiPower
4 Chapter 1. Component List
CHAPTER
TWO
ASSEMBLE THE PIPOWER
After getting familiar with the components in the package, we start to assemble PiPower.
In the next steps, there are a lot of details you need to notice, especially the assembly position of the battery and the
clear acrylic back cover.
Place the Batterries
You can place the battery according to it: anode to anode; cathode to cathode.
Assemble the PiPower Module
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SunFounder PiPower
Assemble the Raspberry Pi
6 Chapter 2. Assemble the PiPower
SunFounder PiPower
Assemble the Back Cover
Put the gap side of acrylic back cover under the switch of PiPower module so that you can easily power the PiPower
on/off.
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SunFounder PiPower
Plug the USB Cable
8 Chapter 2. Assemble the PiPower
SunFounder PiPower
When the battery is about to be run out, you can charge the battery through the Type-C USB port of the PiPower
module.
Warning: When you put the battery in for the first time or when the battery is unplugged and put in again, the
battery will not work properly, at this time, you need to plug the Type C cable into the charging port to turn off the
protection circuit, and the battery can be used normally.
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SunFounder PiPower
10 Chapter 2. Assemble the PiPower
CHAPTER
THREE
FEATURES
• Pass through Charging
• Output: USB Type-A, 5V/3A
• Input: USB Type-C, 5V/2A
• Power Switch
• 1 Charge Indicator
• 4 Battery Indicators
• Dimension: 90mm x 60mm x 24.9mm
• Battery: 2 x 3.7V 18650 lithium battery (Self-provided)
• Over Discharge Protection Voltage: 3.2V
• Overcharge Protection Voltage: 4.2V
Interfaces
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SunFounder PiPower
Over-discharge Protection
When the single battery voltage is below 3.2V, the battery protection activates and the battery is no longer discharged.
When the battery is unplugged, due to the mechanism of the on-board over-discharge protection circuit, the voltage
will be considered too low, thus activating the protection circuit; when you replug the battery into the PiPower, the
battery will not work properly, at this time, you need to plug the Type C cable into the charging port to turn off the
protection circuit, and the battery can be used normally.
Overcharge Protection
Charging ends when the total battery voltage reaches 8.4V.
Charge Balance
When a single battery exceeds 4.2V, the voltage divider resistor channel conducts and the battery charging current is
reduced or even discharged. It is recommended to use the same type of battery with similar voltage for both batteries.
Battery Indicators
The relationship between the battery indicators and voltage is as follows:
• 4 LEDs all on: voltage > 7.8V
• 3 LEDs on: voltage > 7.44V
12 Chapter 3. Features
SunFounder PiPower
• 2 LEDs on: voltage >7.04V
• 1 LED on: voltage > 6.68V
• 4 LEDs all off: voltage <6.68Vat this timebatteries need to be charged.
Temperature
When the output power reaches the maximum nominal 5V/3A, the temperature of DC-DC buck chip U1 will rise to
about 70-80 degrees Celsius, so be careful not to touch it to prevent burns and keep ventilation. When the temperature
reaches the DC-DC protection temperature of 75 degrees Celsius, the DC-DC will shut down to prevent overheating
damage.
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SunFounder PiPower
14 Chapter 3. Features
SunFounder PiPower
16 Chapter 4. Downloads
Other manuals for PiPower
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