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Yes. Both should be in good condition and well maintained. If one goes bad it can drain the other. <><><> Absolutely not if one is weak the healthy one will try to charge or equalize to the same voltage which can cause severe damage to both. The two batteries should not be connected in parallel when they are being charged, they should each be charged separately. <><><> It is important not to overload the battery charger by trying to draw more current from it than it was designed to handle. If you overload it on the side which was designed to supply charging current to just one battery, if it is a very cheap model it may not blow a fuse or trip a breaker on the high voltage side: the current may not be broken and the charger may catch on fire when the internal insulation on its transformer windings breaks down due to a serious overheat condition! So always check the total amps drawn by a battery when it is connected to the charger and be sure to remove it immediately if - because of the battery's poor condition - that current exceeds the charger's rated charging amperage. That rating (output current in amps) should be shown on its Rating Plate. you cannot overload any battery charger even with a short because they are always current limited by design.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoyes
There is a serious risk of overheating/ damage and explosion from the excess voltage. You might get away with this if you watch the battery closely and do not let it overcharge or get too hot. But, my advice is not to do this. Get yourself a 12 volt charger.
Wiki User
∙ 15y agoYes. Connect the negative clamp from one charger to the positive clamp of the other, then the remaining clamps to the battery terminals.
Wiki User
∙ 13y agoyes
and its much better to put two 6s in series than 12s in parallel
seems like the old 12v vw beatles had 2 sixes in series under the back seat
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Can you charge a 28 volt Gill aircraft battery with a 12 volt car charger?
No, the battery charger has to match the voltage of the battery it is to charge.
Can you charge a 6 volt battery with a 12 volt battery charger on slow 2amp charge?
No.
Can you use a 12 volt charger to charge 14.4 volt battery?
Yes. The voltage of charger has to be slightly higher than the battery for it to be able to charge the battery.
Can a 12-volt solar battery charger charge a 36-volt battery?
No, a 12-volt charger cannot charge a 36-volt battery. The electrical potential difference across the leads of a charger must exceed the electrical potential difference across the terminals of any battery it is expected to charge. And 12 volts is much less than 36 volts.WHY?The 36-volt battery would require at least 39.3 volts to get to a float charge. This would charge the battery to 80% quickly, and then take a logarithmic period of time to finish the battery. To actually charge the 36-volt battery correctly would require roughly 43.2 volts, but if we can't get 39, this is irrelevant.The 12-volt charger has no chance.The answer above is correct; there is no way the 12-volt charger can charge a 36-volt battery. However, the voltages given apply only to lead-acid batteries. They would be different for nickel metal hydride or lithium cells. You still need a charger with more voltage that the battery voltage in any case.
Can you use a 3.5 amp charger to charge a 12 volt battery?
You can charge a 12 volt battery with a 6 AMP charger. The amount of amps put out by the charger is actually the rate which the power flows out from the charger, not the amount of volts it will charge. Volts and Amps are two different things. You can't charge up a 12 volt battery all the way, using a 6 volt charger. You can charge a 12 volt battery with a 12 volt charger rated at '6 amps'. It will charge the battery faster than a 2 amp charger will, but it will take longer than using a 12 amp charger. You probably don't want to use anything higher than a 12-16 amp charger for charging a 12 volt battery. Some chargers are equipped with a 60amp boost charge that is used for starting the vehicle, without having much of a charge in the battery. You DO NOT want to attempt charging a battery with it set to a 60amp boost charge. That is for starting vehicles only and could damage your battery. Keep in mind that the lower the amps are, that you use to charge the battery (1-2amps), will result in the charge lasting longer without recharging it, than if it was charged up at a higher setting (12-16amps).
How you charged the 12 volt battery?
Charge it with a 12 volt battery charger.
Can a 12 volt charger charge a 8volt battery?
No, a 12 volt charger will overcharge a 8 volt battery and destroy it.
How does a 12 volt battery charger work?
A 12 volt battery charger is designed to charge 12 volt batteries.The answer to the Related Question explains how any battery charger works.
Can you charge a 28 volt Gill aircraft battery with a 12 volt car charger?
No, the battery charger has to match the voltage of the battery it is to charge.
How do you equalize a 6 volt marine battery with a 12 volt charger?
If you are asking the question, can you charge a 6 volt battery with a 12 volt charger, the answer is no.
Can you charge a 6 volt battery with a 12 volt battery charger on slow 2amp charge?
No.
Can a 12 volt battery charger be used to charge a 24 volt battery?
no it can't
Can you use a 6 volt battery charger to charge a 12 volt battery?
No it will not work
Can a 12 volt charger be used to charge a 8 volt battery?
No
Can you charge a 12 volt battery with a 16 volt charger?
NoNo
Can you charge a 8 Volt Battery with a 12 Volt Charger?
No you cannot.
Can you charge a 5 volt battery with a car charger?
No, an automobile battery charger outputs 12 Volts. This is far too many volts to charge a 5 Volt battery. You would destroy the 5 Volt battery with this charger.
