I'm posting today hoping for some guidance on a project i would like to attempt. I recently came into a lot of 64 12v 7AH Sealed Lead Acid batteries from a backup UPS. The batteries are still good and take a charge and load like normal for the most part. Since i only have the batteries and not the UPS I am looking to build a charger so that i can maintain them in a string of maybe 8 at a time. I cannot charge them 1 at a time because i have run out of patience for this.
So what i am hoping for is a fairly simple variable power supply that goes up to around 110vdc.
Manufacturer specs on the cells are to recharge at 2.1volts per cell, float at 2.25 volts per cell and equalize at 3.1 volts per cell.
I think the easiest way is to buy a power supply but not the cheapest. Maybe?
I'm not looking for easy but cheapish and correct would be nice. And maybe this is a good chance to practice and refresh my electronics skills! Or perhaps my lack there of. Any Ideas, circuits, criticism would be greatly appreciated.
Or at least some ideas may keep me from the wrong path to start with.
Thanks, Joe
So what i am hoping for is a fairly simple variable power supply that goes up to around 110vdc.
Manufacturer specs on the cells are to recharge at 2.1volts per cell, float at 2.25 volts per cell and equalize at 3.1 volts per cell.
I think the easiest way is to buy a power supply but not the cheapest. Maybe?
I'm not looking for easy but cheapish and correct would be nice. And maybe this is a good chance to practice and refresh my electronics skills! Or perhaps my lack there of. Any Ideas, circuits, criticism would be greatly appreciated.
Or at least some ideas may keep me from the wrong path to start with.
Thanks, Joe