Hi folks,
Ive got a truck with a 24vdc charging source and I want to install a small security system that runs on 12v with a 12v 1.5Ah backup battery, the system which ive made myself works perfect on the 12v battery i have. Whats the best/cheapest solution to ensure that the 24v could be converted down to charge a 12v battery and regulate the charge so theres no nasty overcharging, over discharging etc? anything you guys know of on ebay? I was thinking a dc-dc converter with 12v charge regulator, I was looking at those solar chargers but they seem to be set up in such a way that if the charging source is 24v, then the battery should be 24v with the output load at 24v. Could it work if I got the solar charger, run it at 24v and put 24-12v dc-dc converters on the battery output and load output. I am also just wondering about the 12v dc-dc output whether it can charge the battery as i am thinking the output will only be 12v. any simple effective solutions? Thanks folks