Charging 48v SLA with 24v charger

[FlyWheelz]

Hi. I would like to find a best way to charge a 48v SLA pack with a single 24v charger.

It looks like I have to split the batteries in pairs for this to work. In the pic you can see a blue X. This is where I either need a switch, diode or relay to cut the loop before charging. Am I correct here?

Also would a 24v 8amp charger be to much for charging 12ah batteries that would be 24ah if paralleled as in the pic.

Thank you.

 

[dogman dan]

Actually, you can leave them connected in series. You merely need a connector where the x is so you can connect the charger to one end of the pack, or the other. When charging one side, it will be the + and when charging the other side, it will be the -.

8 amps will cook batteries that small. 2 amp is the norm.

 

[FlyWheelz]

I see what you mean.

But I would like to charge both sides at the same time with a single 24v charger or even a pair of 24v chargers that I have access to. Thing is I don't want to disconnect the slip on battery connectors everytime I charge.
If this can not be done, I will get the 48v 1.8a charger from cycle9.com along with the wire kit harness for $55 I guess.

I have access to 24v chargers that are 3a, 5a and 8a.

 

[dogman dan]

So you add 3 wires to your existing harness. leaving the others all connected, you use the charger wires to connect the chargers. You'd have to use the chargers one at a time most likely. Alternatively, you could add an anderson connector where the x in your diagram is, and simply disconnect it there to create the place to hook up a 24v charger. Then with the two packs separated, you could use the two lower amp chargers.