|
Also and related, I cobbled together a cheap power system for SVAC. I bought a 13.8V 12A DC power supply from Jaycar for $70, cabled it to an Anderson plug and put it in a battery box with the SLA from a jump start pack, cabled in parallel (Isolated by disconnecting the Anderson plug) and wired out to two lighter sockets panel mounted in the box.
my only gripes were that the cooling fan on the power supply is a bit noisy, which I will probably fix by cutting a hole and fitting a much larger, slower turning PC fan to the case, and if left connected to the battery the fan ran with the supply turned off, so it is obviously a DC fan on the output of the supply. I may get a high current diode to keep it from backfeeding the fan when switched off.
I don't see any great changes required, it ran the mount and SCT heaters (Hungry) for hours on end without issue and even after four or so hours running on a warm day while the solar scope was mounted, the PSU was still nice and cool even with the lid on the battery box.
I am not sure if I will remove the PSU from the box and use it by itself at home by running DC cable out of my shed or leave it as is so any power bumps are floated by the battery.
|