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.
- 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 Power Experiment 2
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.
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.
Unfortunetly the results sucked! Taking into account that the batteries are not new, the raspberry pi ran for 4 hours and 37 minutes.
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.