Imperf3kt wrote: ↑
Wed Jul 18, 2018 8:39 am
W. H. Heydt wrote: ↑
Wed Jul 18, 2018 1:58 am
Imperf3kt wrote: ↑
Tue Jul 17, 2018 10:06 pm
There is no current battery technology that can run a Raspberry Pi for two weeks, without charging it.
Get a solar setup, and prepare for some learning.
Sure there is...a bank of Lead Acid batteries. Preferably "deep discharge" marine batteries. Not very portable, I'll grant you, but it could be done.
Fair enough, you have a point. Highly impractical, and probably extremely expensive, but you are technically correct that it is possible with today's technology, or rather, lots of it.
Much of that solution depends on a possibly unstated requirement. To wit: Does the solution need to be portable (and that in the sense of not requiring a vehicle to move it). Basically, the OP needs to provide more information about exactly what he is trying to do.
It is, of course, possible that a reasonable sized battery system would work if the Pi only has to run intermittently. In that case, an add-on processor that can fully shut down the Pi between active intervals and reboot it when needed. Specifically, an add-on that uses very little power and has a "wake on event" (timer or some signal) capability. Such a scheme (if it meets the needs of the project) could massively reduce the required energy storage requirements. Another alternative *might* be PoE, depending on the project requirements.
The basic problem is that we don't have a full description of the project. We can't evaluate the full scope of the requirements and suggest alternative solutions. This is actually pretty typical of "request for help" posts. Only part of the situation is specified and people ask for further details (not always forthcoming) or guess as to what the *real* requirements are. And when one has to guess, the suggested solution may be kind of...odd.