12v questions: Power Wheels + Scooter=?

[JoeT]

OK so I'm playing with the kids 2 PowerWheels and doing some tweakin to them. So far I've replaced the wimpy dual 6v batteries (running as 12v) w/ dual 12v 12 amp running as 12v = 2 hours min solid driving time . I want to take the recharging plug from the scooters and wire it to the batteries. That way instead using my 2amp/6amp car battery charger I can use a 24v/36v scooter charger. My question is am I going to fry batteries using the scooter charger since I'm running the Power Wheels as 12v versus the scooters that run 24v/36v?

 

[PBandCJ]

I would be concened about the batteries getting hot and burning your kid(s) if something went wrong?


as for charging I couldn't say ....sorry

 

[JoeT]

So far I've had no problems with running the batteries. It's just the charging issue that I need to work. Eventually these Power wheels will have keys, lights, horn and other things on them.

 

[DaveB]

You would fry the batteries putting that much voltage on them while wired in paralell for 12v. You can wire a switch(double pole double throw), to have a charge position and a run position. The charge position wires the batteries in series instead of paralell (24V mode) then you could use the 24 V charger. Just don't run the hotwheels in the 24 volt mode. If you used a 3 pole double throw switch you could prevent the motor from ever seeing the 24V in the charge position. I can send you a wiring diagram if you don't get what I am talking about.
Dave

 

[JoeT]

You would fry the batteries putting that much voltage on them while wired in paralell for 12v. You can wire a switch(double pole double throw), to have a charge position and a run position. The charge position wires the batteries in series instead of paralell (24V mode) then you could use the 24 V charger. Just don't run the hotwheels in the 24 volt mode. If you used a 3 pole double throw switch you could prevent the motor from ever seeing the 24V in the charge position. I can send you a wiring diagram if you don't get what I am talking about.
Dave

Not a bad idea. But I'm thinking that I will just pull the batteries out and charge them in their original 24v wiring harness to the charger.This way I'll be playing safe and safe wear on the batteries. Plus both PW's will have 2 sets of batteries. But still send a me a wiring diagram.

 

[DaveB]

Here is one way to do it. This wiring never allows the 24 V to get to the motor. If the switch is set to charge it just runs off of one battery.
Dave

 

[JoeT]

Here is one way to do it. This wiring never allows the 24 V to get to the motor. If the switch is set to charge it just runs off of one battery.
Dave

Thanks! Now some of my chargers are 2 prong and some 3 prong. Would that be 24v (2 prong) 36v (3 prong)?