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> JUST A CURIOUS QUESTION
fjp
post 8 Jan 2017, 17:24
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As the title say just curious,when i need to charge my battery i have to take it in to my flat as the lock up garage has no electricity,is there a danger to leave the battery connected and just clamp the charger straight to it without taking the wires off as i said just curious.please dont say why would you do it i just like to know,Ted
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ozieagle
post 8 Jan 2017, 19:22
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Hi Ted,

If I understand you, you are asking if it is OK to connect the charger to the battery, with the battery still in the car and connected.

The answer is yes it's OK.

Herb
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fjp
post 9 Jan 2017, 09:54
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Thanks Herb,i am just a curious person wondered if any electrical damage would occur.Ted
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ozieagle
post 9 Jan 2017, 10:28
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Hi Ted,

With our cars there is no possible problem. Modern cars do not recommend jump starting, ie putting a voltage back into the system, like a charger, because it might damage the computer, but I have jump started many modern cars without any issues.

The worst that can happen is that you leave some item turned on and then the charger needs to power it as well as charging the battery.

The dynamo is out of circuit when the engine isn't running and alternators have diodes which also keep the alternator isolated.

Herb
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Darvie43
post 10 Jan 2017, 06:04
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Alternators need to be excited and this can only happen when the ignition is on.
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