Tag Archives: experiment

Powerbank endurance test for Raspberry Pi 3. | testing how long a raspberry pi can be powered via a powerpank

Iv like to test and know how much uptime can be achieved by different powerbank.

I purchased this powerbank case on ebay and then purchased the 18650 3.7v batteries separately.

I have built two powerbank with identical cases but different batteries. 

  • Powerbank – $5.35
  • Batteries 18650 9600mha – $24.80
  • Batteries 18650 6000mha – $22.49

The results?

  • Batteries 18650 9600mha – 23 Hours
  • Batteries 18650 6000mha – 18 Hours

It should also be noted that the Raspberry Pi is online via wifi during the whole test while getting pinged every minute.

Raspberry Pi – Experiment 2 | raspberry pi wifi batteries AA experiment duration

Raspberry Pi Power Experiment 2raspberry_pi_logo-svg

Raspberry Pi

Going on from my first experiment, this one will be slightly different.

I will be using a 12v to 5v USB converter and a 12v AA battery caddy. This caddy stores 8 x AA 1.5v rechargeable batteries. This design will closely simulate my end design which will include a charge controller and a 60w Solar panel.

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I did not commit to this design by soldering the wiring and connecting permanently as its a quick dry run test. I simply want to test the duration in which it will power a raspberry pi with a wifi dongle.

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Unfortunetly the results sucked! Taking into account that the batteries are not new, the raspberry pi ran for 4 hours and 37 minutes.

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This is a poor a result and is sending me back to the drawing board in regards to my design. I need to think about getting a sealed lead acid battery with some decent capacity.

Tracking

Experiment 1