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Harry at 10:34, 29 April 2026

2026-04-29T10:34:55Z

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			{{Deprecated}}
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	[[File:Power-Pack-Pro-IMG-2565.jpg\|thumb\|right\|Raspberry pi power pack Pro versoin]]		[[File:Power-Pack-Pro-IMG-2565.jpg\|thumb\|right\|Raspberry pi power pack Pro versoin]]

Admin at 07:55, 1 September 2018

2018-09-01T07:55:02Z

New page

{{GD Template Impl}}
[[File:Power-Pack-Pro-IMG-2565.jpg|thumb|right|Raspberry pi power pack Pro versoin]]
[[File:Pro-IMG-2568-AM.jpg|thumb|right|Raspberry pi power pack UPS HAT Pro versoin]]
==Overview==
This is a power expansion Board especially designed for Raspberry Pi, which enables to use the Raspberry Pi with a moveable power source. It's more convenient to use external 3.7V Lithium battery or 3.7V 18650 Lithium battery;

==Specifacation==
[[File:Power-Pack-HAT-Pro-Spec.jpg]]

== Features ==
* Supports I2C Output with Capacity & Voltage Reading Function
* Supports Raspberry pi or Android & Apple Phone or Pad or other electronic device charging;
* Supports charging while discharging,(Very stable, the maximum output current can up to 1.8A while charging, but the chip heat will become larger. maybe you can place a external heatsilk on clip.)
* With 4 LED power indicator;
* Standard dimension of Raspberry Pi HAT;
* Two power supply modes: GPIO power output and Micro USB power out (you can use OTG cable to connect it);
* Removable battery, The external lithium battery requirements: 3.7V lithium battery;
<hr/>
* Built-in power path management, perfect support charging While discharging.
* Intelligent 3-stage charging (trickle, constant current, constant voltage), it can effectively extend the battery life.
<hr/>
* Maximum discharge current: 2A, Maximum charge current: 1.8A;
* Output protection: over current, short circuit, under voltage protection;
* Input protection: over voltage, overcharge, under voltage protection;

==Check I2C on Rasbperry pi ==
check if there is a I2C device；
sudo i2cdetect -y 1

i2cdump -y 1 0x62
0x62 is device address. You can see：0x0A address register default value is 0xC0

i2cset -y 1 0x62 0x0A 0x00
Wake-up the device I2C function; MODE register address 0x0A set to 0x00

i2cdump -y 1 0x62;
VCELL(cell voltage) address：0x02 - 0x03

PS: 0x62 is the device address of I2C device（CW2015 power monitoring chip）

== How to read the voltage values that saved by chip register? ==
sudo i2cget -y 1 0x62 0x02 w
get the value 0xf82f; swap high and low byte to get 0x2ff8;

0x2ff8 converted to decimal number is 12280;

12280 * 305 = 3745400 uV

3745400/1000000 = 3.7454V

PS: 305 is a fixed value (Fix factor value);

== How to read the remaining capacity (percentage) estimated by the chip? ==

=== 1. Read the integer part of the battery percentage; ===
sudo i2cget -y 1 0x62 0x4 b

the resulting value is 0x11;

Converted to 10 decimalism is 17, then the remaining capacity is 17%;

=== 2. Read the fractional part of the battery percentage ===
sudo i2cget -y 1 0x62 0x5 b

the resulting value is 0x95;

Converted to decimalism is 149;

Then the fractional part is 149/256 = 0.58;

So the chip estimated remaining capacity (percentage) is 17.58%.

==Document==
* [[File:UserManual-CN.docx]]
* [[File:CW2015-power-management-datasheet.pdf]]

<comments />
[[Category:Product Manual]]
[[Category:Raspberry pi]]

Power Pack Pro - Revision history

Admin: Replace with

Admin: Replace with

Harry at 10:34, 29 April 2026

Admin at 07:55, 1 September 2018