If I attach 2 - 10 Amp chargers to a 12V battery, would I be putting 20 amps in?

Answer 1

no your going to over load the battery,,and possibly burn a cell out of it,you going to be putting 24 volts in it,,it wont handle that kind of voltage,,why don't you just go by a good cheap,charger,they don't cost that much,,and this way you will be putting the right amount of voltage,,and amperage in it,,it could explode on you if you hook 2 chargers to it,,i hope this hep,s,,,i own a repair shop,,and i hope you don't try this.

Answer 2

Yes, and no. I am assuming you would connect the (+) side of each charger to the (+) side of the battery, placing the chargers in parallel, unlike another person who assumed you would connect them in series. So, in parallel, the chargers COULD deliver 20 amps, 10 amps each provided both chargers tried to bring the terminal voltage to exactly the same voltage. In practice, the chargers rating is the maximum it can deliver, not what is actually delivered, since the actual current will depend on the terminal voltage of the battery. Initially, with a "dead" battery (11.5 volts is considered dead for all practical purposes for a lead-acid battery), the current may be 10 amps (the maximum) and then will drop as the battery charges. When fully charged, the 10 amp charger may only deliver an amp or less. I'm surprised the certified 35 years mechanic did not mention this. The charger is designed to act in this manner to reduce the possibility of damage to the battery from overcharging. If you maintained 10 amps after the battery is fully charged, the energy has to be dissipated somewhere. Think about it, 10 amps at 13.6 volts is 136 watts of power and it ends up going somewhere, and that somewhere is heat and electrolysis, which makes hydrogen and oxygen and results in electrolyte loss from the cells, which is a very bad thing for wet cells and the heat can cause warping of the plates, another very bad thing. Hooking two chargers in parallel will work but the chargers may not equally share the load. One may "pick up the load" and charge at the maximum while the other loafs along. It depends on the voltage each is trying to raise the battery to. The one which tries to bring the voltage to the higher level will assume the majority of the current load. If you are going to do this, best to use identical chargers as then they will both be trying to raise the battery voltage to approximately the same level and share the load equally.

Answer 3

No,if you connect them in parallel you might gain an amp making 11 or 12 amps,dont connect them in series though

Answer 4

No, as you'll burn the both of them out from shorting and such.

Answer 5

no