Table of Contents

Battery Powered Raspberry Pi

The goal of this bunch of tests is to measure how long a Raspberry Pi can stay on when powered using an external cell phone battery pack. Different software configurations and runtime environments will be tested.

Scenario 1: Ethernet setup

Item Description
Hardware Raspberry Pi Model B rev 2. CPU: 700 MHz ARM1176JZF-S core. Memory: 512 MB. Onboard storage: SD 16 GB
Software Raspbian GNU/Linux Debian Wheezy
Networking Fast Ethernet 100 Mbit/s
Power Supply Cellularline USB pocket charger smart 2200 mAh, output: 5 V DC 1000mA, weight 62 grams
OS / Software tweaks Nothing, the Raspbian OS is run with standard configuration
CPU load Idle operating system, no user applications
Network load The Raspberry Pi receives a 56 byte ICMP ECHO_REQUEST every minute and responds accordingly with the standard
Test 1 Test 2 Test 3 Average σ
Uptime 4 hours, 7 minutes
(= 14820 seconds)
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battery-raspberry-1.jpg

battery-raspberry-2.jpg

Scenario 2: Wi-Fi setup

Item Description
Networking Wireless-N150 USB Adapter. Distance from the access point: 30 cm. Wi-Fi 802.11n 2.4 GHz
Test 1 Test 2 Test 3 Average σ
Uptime 3 hours, 12 minutes
(= 11520 seconds)
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battery-raspberry-3.jpg

Scenario 3: Bluetooth setup

Item Description
Networking Sitecom CN-516 Bluetooth 2.1 USB Adapter. Distance from the second device: 30 cm. Ping, data size=44 bytes
Network load The Raspberry Pi receives a 44 byte ping every minute and responds with a 44 bytes pong
Test 1 Test 2 Test 3 Average σ
Uptime 4 hours, 26 minutes
(= 15960 seconds)
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