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2 votes

Question about cigarette lighter voltages/currents

It depends on the efficiency of the electronics inside the charger. Presumably it will be some kind of switching regulator that will be fairly efficient. Your calculations are correct for 100% ...
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1 vote

2012 Sonata doesn't turn on but make hosh sound

The sound you are hearing is the starter gear spinning and not engaging the flexplate and therefore the engine will not turn over and start the car. This could be caused by a couple of things. Most ...
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0 votes

Is it possible to charge a 12V car battery externally with another car battery?

To answer the question directly, connecting two batteries in parallel will transfer some charge to the dead battery but it will be a slow and not very effective process. It could well take hours to ...
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  • 360
1 vote

Car starts only when I jump it

Can you go into a bit more detail about exactly what it does when you try to start it on the key? Traditional starter motors need a small current from the battery to the key to the starter's solenoid. ...
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3 votes

Car starts only when I jump it

You have listed the obvious reasons your car is not starting. I would suggest starting with a visual inspection of the the battery terminals and cable connectors to see if they are clean and are ...
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1 vote

2000 Suzuki Katana 600 starting

Always start with the basics. To run an gasoline internal combustion engine requires: Fuel Air Compression Ignition First of all this bike has carburetors and these can be very sensitive to storage ...
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  • 8,484
0 votes

Nearly drained battery for 2 weeks - how much damage was done?

I did a recent capacity measurement (full charge/discharge/charge) after I left the dashcam + rear camera + navigation to completely drain my camper battery down to ~5V out of 24V. The battery is ...
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  • 1,447
1 vote

Nearly drained battery for 2 weeks - how much damage was done?

You never had a charging problem. The charging system worked as intended. The lead-acid battery has simply reached that age, and is due for replacement. It doesn't owe you anything. Yes, you did ...
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3 votes

Nearly drained battery for 2 weeks - how much damage was done?

TL;DR Keep using it till you can no longer use it if you're not afraid of getting stranded somewhere; it's a $150-$250 investment depending on your engine size. A 5 year old car battery has lived a ...
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13 votes
Accepted

Nearly drained battery for 2 weeks - how much damage was done?

Considering car batteries usually have a lifespan of between 3-5 years, I'd say "yes" you should probably think about getting a new battery. As far as damage to the battery, you should have ...
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2 votes

Is it normal to over flow little battery liquid

A little bit of "sweating" is unavoidable and considered normal. Larger fluid escape is not ok. A photo might be helpful. It is further advisable to use one of the older "maintainable&...
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  • 7,703
-1 votes

I have a 2009 Honda Accord 2.4 and I replaced the battery and alternator and the car will not keep running. Its not holding a charge

The reason: it's not be running for very long. It could be the gasket between the throttle body and the intake manifold, or between the manifold and engine block. Also I would check the vacuum lines ...
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