http://www.cleverscampcamp.com/battery-charger/

What kind of automotive battery charger should I buy?
I want to buy an automotive battery charger but I am confused the the amount volts and amps it should have. I would like to know what would be the recommended specs for a charger used to charge automotive batteries. Thanks!!!
Well You need a 12 volt charger.. That will be what your car or pick-up is.. Some larger trucks are 24 volt (2, 12 volt batteries). If you want to use it to boost your car from a dead battery you should buy one with a “boost” setting. Don’t try to charge a battery with this setting, you will ruin the battery. I have a 12 volt, 10 amp charger i bought for under $50 and it charges the battery at about the same rate as running the car would. It is safe to charge a battery without even disconnecting it from the cables with a 10 amp. 4-5 hours to charge a good dead battery is enough to put about a 75% charge in it.. Enough to get you going.
BEDINI RENAISSANCE RADIANT BATTERY CHARGER
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