I am doing some research on building a charger for my 12v sla (sealed lead-acid) battery. The requirement is simply bing able to start and stop charging automatically. I realize there is good information on the web (for example, **broken link removed**)
Ok, the regulated power supply I need should be rated at about 15 volts. However, I am thinking if there is some circuit failure (for instance, diode failure) on the power supply and it is not giving out 12-15 volts dc, am I so-called "back-charging"? So in the case my power source becomes 7 volts and not 15volts, I am further draining the SLA battery that sits at 11 volts!!
In that case I know my charger is not doing its job. But will it cost my battery or blow up my other parts of the circuitry, I am wondering? (please give a refresh to my rusty brain.) Thank you so much.
Ok, the regulated power supply I need should be rated at about 15 volts. However, I am thinking if there is some circuit failure (for instance, diode failure) on the power supply and it is not giving out 12-15 volts dc, am I so-called "back-charging"? So in the case my power source becomes 7 volts and not 15volts, I am further draining the SLA battery that sits at 11 volts!!
In that case I know my charger is not doing its job. But will it cost my battery or blow up my other parts of the circuitry, I am wondering? (please give a refresh to my rusty brain.) Thank you so much.