I have two products in hand i.e
An old APC UPS 500va and 10amp pwm solar charge controller
and I want to convert them into 12V DC UPS
Can I take out APC battery and connect it to Charge Controller’s battery input and APC’s battery cables to Charge Controller’s power Input?
Would this setup work as 12V DC UPS?
Actually I want to run 2 cctv cameras and a 4 channel DVR on it and instead on running it over AC I want to run them directly over 12 V
And if this is not a good idea then what kind of power supply I should connect to my solar charge controller ? DVR consumption is around 40W