good evening dear friends,


What has kept me busy lately are questions about operating devices on batteries - i.e. disconnecting things from the mains. What's important here is a good (well planned and well thought out) stable power supply. Fluctuations - these should be avoided if possible.

Batteries - in the power supply, so they play a pretty big role here. For me, the topic of batteries in ?supply? also comes up in Pi projects.
So here's the question: Battery-powered Raspberry Pi projects - what is realistic and what are the limits? How do you manage to keep the application in a stable state with runtimes!?

Background: I feel like more and more DIY enthusiasts who work with the Pi - we use batteries wherever we want to make their Raspberry Pi projects mobile, for example - that is, to go "off-grid". It doesn't matter whether it's about outdoor sensors, a Pi project such as a camera in the garden house or a weather station in the garden house or any other smart gadgets or robotics. Here the battery technology is a "condition-setting" or limiting factor: Questions then arise such as, "What about the running time, charging cycles and efficiency?"

The technical reality at the moment mostly looks like this: are (still) standard, but, I think, new technologies such as LiFePO4 or solid-state batteries could also change the game in the foreseeable future.

I would like to hear your experiences and tips: Which batteries do you use for your mobile projects?
How to optimize battery life for Raspberry Pi applications? Do you also use PV panels if necessary!?

well some of the battery-types i am knowing are the following - see the types of Batteries Suitable for Raspberry Pi

Lithium-ion (Li-ion) or ( on the other handside) Lithium Polymer (LiPo) Batteries
characterized: High energy density, rechargeable

Nickel-Metal Hydride (NiMH) Batteries
characterized: much more robust and safer than Li-ion

Lead-Acid batteries;
characterized - not so expensive and able for high current.

well - the question is - which tiypes are missing here!? Which types would you are ging to use for projects in "off-grid-area"?


look forward to hear from you.

greetings