some advices in this forum regarding power supply solutions is to connect a car battery in parallel to a psu
I have two 12V - 40A PSU
and planned to power two 12V 30W wiper motors from each psu (four motors total).
As I found out during initial testing, the psu kind of shuts down after some turns of the motor!?
After waiting a few minutes, the motor turns again, but not for long. Since the psu was rather cheap, I suspect it to be the problem.
I still have a 60Ah - 320A car battery
lying around and was wondering if it might help to use it in parallel with the psu, as suggested some times in this forum.
- doesn't the battery overcharge or something with a 40A psu?
- do I have to ground the battery, or is this done via the psu ground?Thanks for your help
and sorry if my questions sound stupid, but I'm a complete noob regarding electrics...
( This is my project: http://x-sim.de/forum/viewtopic.php?f=37&t=1310