2007 Prius won't light up

changed my email recently too. Interesting bit of info: I used dual chargers, one on the big battery cranking out 255v and a 12v charger set on 50 amp start setting to turn on the lights

 

Why do people create a new account rather than use the Forgot Your Password option?

 

Usually because they think its less effort and the old account isn't much different to them than a new account.

 

How many amps you use to top off and balance hyrbid battery pack? Do you run the cooling fan when you do that?

 

I am really confused by the second part of that statement. What model 12V charger is that?

Sending 50 amps at "12V" into a 45Ah S46B24R battery is about 12.5X higher than the maximum charging current that type of battery should ever see, and will likely "put out its lights", permanently.

Doing the same thing to a HV pack module would destroy it in short order.

Is this 50A charger used to power up the car's 12V system instead of the 12V battery or the DC-DC converter in the inverter? There are some procedures that can take a long time and the battery can run down, and one might use a charger designed for this function in that case. That would make a lot more sense. For instance, the PRO-LOGIX PL2320 has a setting for that. However, it just has a "power supply" setting and the current cannot be set separately (it supplies up to 20A). True adjustable power supplies (sometimes referred to as chargers) can (sometimes) be set to 50A. Setting a 50A current limit would be fine. Setting a 50A forced current (sometimes an option, and then let the "12V" voltage vary) would be bad, very bad. I have also seen chargers with a 50A "engine start", but that's for vehicles with starter motors, which the Prius does not have. I don't think chargers in "engine start" can maintain the 50A for very long, probably just a few seconds.