I've got a quite delicate setup with a PC and some other minor equipment such as a microcontroller connected to a large 100Ah sealed (AGM) 12v lead acid battery.
I need to be able to run my equipment non-stop for months and only charge the battery at night time. I would love to get some advice on how to run this setup as smoothly and safe as possible.
Is the best way to just leave my stuff plugged into the battery and just hook up a charger to the battery as well?
Should I use two batteries and just swap them, plugging in a fresh one in parallell before disconnecting the old one? And that way I can just charge them one at the time.
The first solution feels easier but I'm not sure how my sensitive equipment handles the plugging in and out of a charger. Or the swapping of batteries for that matter.
Are there some good practices for creating a setup like this? What precautions should I take, do I need a diod to prevent surges while connecting a charger? Do I need any voltage regulators to prevent bad things happening?
Grateful for all advice on this. Thanks.