Questions tagged [battery-testing]

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1answer
73 views

Is there a way to reliably test voltage of a 12V battery when it's not disconnected (i.e., partly loaded)?

I'm having an issue where a fully charged battery doesn't necessarily report the proper voltage when checked from the socket within the car, because in order to have the socket activated, the car has ...
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0answers
10 views

Motorcycle Randomly loses power/sputtering at half throttle

my motorcycle its a kawasaki ninja 300 2 cylinder FI, mods on it, just headlights it only have 10 k miles on it. I've had the problem for a while, it's starting to give me headaches, the problem only ...
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1answer
40 views

Alternator health check

My car (Fiat Grande Punto MY2008) has been having an occassional battery light and failure of the power steering. Perhaps once in every 10-15 startups, and is resolved by restarting the car. The car ...
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3answers
535 views

Car battery at 11.8v in the morning and 12.5v after 20 minute drive bad?

If my group 48/H6 70AH 120RC Led Acid car battery is at 11.8v in the morning and 12.5v after a 20 minute drive is it bad? My van and battery are only 10 months old but I do frequently use the battery ...
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0answers
30 views

Risks Of Using Car Battery With Less Battery Acid

If I have a new battery, however some of the acid has spilled out of it, what are the possible effects of using that battery? The spill happened from the battery falling on it's side. There was no ...
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2answers
24 views

Flat Battery, heath is down but charge is fine

yesterday, suddenly my car battery got flat, i was driving since one hour, i just stop on a shop and it didnt start again, i called the breakdown AA, they came and started my car, he said that the ...
4
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1answer
15k views

What is surface charge and how does it affect battery testing?

I've read in numerous places that "surface charge" can give false positives when testing a battery, and you need to remove the said surface charge to get an accurate result. I've also read various ...
4
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0answers
135 views

Can a Battery Conductance Test tell the difference between damaged plates and sulfation?

I'm just going to lay out my assumptions, or what I think I know, so that there's a better context for the question. I understand that there are basically four main situations in which a standard ...