Shop with DX Mobile Site Yes No

Geekworm RPI Power Pack HAT Lithium Battery with Expansion Board

Battery Power Board for Raspberry Pi, Phone Pad Charging - Red

SKU: 474779
Quantity:
Geekworm RPI Power Pack HAT Lithium Battery with Expansion Board
Battery Power Board for Raspberry Pi, Phone Pad Charging - Red

Geekworm RPI Power Pack HAT Lithium Battery with Expansion Board

US$15.13 0 (0 reviews)
Add To Cart
Due to new airline safety regulations announced by the ICAO, pure power products (e.g. Batteries, Power Banks) are currently not allowed to be shipped by Airline service with the exception of the following 24 countries:
Russian federation, Belgium, Poland, Denmark, France, Finland, Netherlands, Czech republic, Croatia, Lithuania, Luxembourg, Romania, Sweden, Slovenia, Spain, Italy, United kingdom, Austria, Hungary, Ireland, Norway, Portugal, Slovakia, Switzerland
Please note that any purchases for such items from countries other than these will be cancelled.
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;

Features:
- Supports I2S Output with Capacity & Voltage Reading Function (provide algorithms and examples)
- Support 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 USB power out;
- Removable battery, The external lithium battery requirements: 3.7V lithium battery;

- 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.

- Maximum discharge current: 2A, Maximum charge current: 1.8A;
- Output protection: overcurrent, short circuit, undervoltage protection;
- Input protection: overvoltage, overcharge, undervoltage protection;



I2C test of this board (on raspberry pi ):
1. i2cdetect -y 1 #check if there is a I2C device;
2. i2cdump -y 1 0x62  # (device address) (You can see:0x0A address register default value is 0xC0)
3. i2cset -y 1 0x62 0x0A 0x00  #Wake-up the device I2C function; MODE register address 0x0A set to 0x00 
4. i2cdump -y 1 0x62  #VCELL(cell voltage) address:0x02 - 0x03
PS: 0x62 is the device address of I2C device(power management 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 decimalism is 12280;
12280 * 305 = 3745400 uV
3745400/1000000 = 3.7454V
PS: 305 is a fixed value (Fix factor value);
How to read the voltage capacity (percentage) estimated by the chip?
# 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%;

#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%.
General
BrandGeekworm
ModelN/A
Quantity1 piece
Form ColorRed(I2C V1.1 with Battery)
MaterialPCB + electric component
Specification
English Manual / SpecNo
Download Link http://www.raspberrypiwiki.com/index.php/Power_Pack_Pro
Dimensions & Weight
Dimensions 2.64 in x 2.32 in x 0.79 in (6.7 cm x 5.9 cm x 2 cm)
Weight 2.29 oz (65 g)
Packing List
1 x RPI Power Pack HAT Expansion Board
1 x Battery
1 x Screws pack

All packages from DX.com are sent without DX logo or any information indicating DX.com. Due to package variations from suppliers, the product packaging customers receive may be different from the images displayed.

To enable volume discounts on this site, use coupon code: BULKRATE during checkout. You will see a discount applied at the bottom of the shopping cart. Competitive pricing is available. Contact us for details.

Quantity 3+ units 5+ units 10+ units
Rate US$13.43 shipped US$13.38 shipped US$13.34 shipped

What is Bulk Rate? BulkRate is a semi-wholesale system with items priced separately from retail. When you use bulk rates, a flat $1.70 registered air mail fee will automatically be added to your cart to ensure delivery of package. While BulkRate's intention is to offer cheaper prices when you buy in bulk, because it is priced separately it on occassions show a higher than retail price. That's why we ask you to enter BULKRATE as a coupon code to manually activate the rates. You can always opt not to use the bulk rates. If you are looking for wholesale prices please feel free to contact us.

0.0
Customer's impression:
There are no customer's impression yet.
Create Review

Share your reviews, photos and videos here!

Review Program
There are no reviews yet, write a review and get DX points! What are DX points?

Discussions

Post a new topic

Please note that DealExtreme Forums are not a sales or product support board. For support questions, please contact us via support ticket at http://cs.dx.com/ for a guaranteed response. We make every effort to make the quickest replies.

Tags of this product

Add your tags:

Your last viewed items

Recommendations Based On Your Recent History

DX Everywhere