I converted my Super 6 Volt Vehicle to 12 volts, but I do not have a 12 volt charger. Can I just use my 12 Volt Auto Battery charger?
Never use an automotive battery charger to charge a Power Wheel Battery. You can use a Trickle Charger that puts out no more than 2 Amps and shuts off automatically, but using an automotive battery charger (even one set on 2 Amps), is asking for a fire. The New Power Wheels Quick chargers are EXCELLENT and worth the $30 they cost. They will charge a Power Wheels battery in only a couple hours and have an LED that lets you know when the batteries are ready to use AND it shuts off automatically when the battery is full. Look for them where Power Wheels are sold.