I'd like to use a Tripp Lite PR40 as a backup 12V UPS by connecting it to a battery before a couple motors in parallel. The battery is 125AH deep cycle AGM. Can I do this?
The manual says that the power supply can be used to charge a battery but that a 40A fuse should be in between to keep it from back feeding and frying the power supply. I think I can do this with a diode but I'm not aware of any 12V 40 amp diodes. Any input on the type of diode and do I need a circuit board of some sort to wire it in?
If not, are there smaller diodes like 20A I could use?