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1
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1answer
10 views

Daiwoo Kalos engine squeal on ignition

There is a short squealing noise (sounds like a belt maybe?) when I start the engine, but not every time. It's been happening for a few weeks now. Last week my battery was dead so I replaced it, could ...
4
votes
2answers
36 views

What's an acceptable battery power drop on light load?

After an overnight rest in the warm weather (above 16 degC), unlocking my 2008 Jetta 2.5L SE, my OEM battery with the minimal "welcome" electronics -- remote open of the driver door a few seconds ...
3
votes
2answers
86 views

Is it possible to charge car battery through cigar lighter socket?

I plan to modify my SUV into a camping car. Can I charge my car battery through cigar lighter socket with a 13.6 voltage when my engine is off? Also, can I power the air conditioning compressor and ...
1
vote
0answers
22 views

Jeep electrical/charging problem

I have an electrical problem with my 96 Jeep Grand Cherokee. The alternator whines and the battery gauge drops to zero. I put a new battery in and a new alternator and it didn't fix the problem. any ...
2
votes
1answer
24 views

Ventilation of batteries

i have two 180 Varta Sealed FLA 12v batteries in my stable block which are charged by a 240kw solar panel on the roof to provide lighting to the stables. The batteries are in the feed room and we ...
5
votes
1answer
167 views

Can I safely upgrade to an AGM battery?

AGM batteries are capable of being charged at a faster rate, and may draw additional amperage from the alternator if it is not regulated. Many cars that come with AGM batteries have special charge ...
5
votes
1answer
201 views

Can a bad battery damage voltage regulator?

I have a '91 Ford Sierra Saphire 2.0 OHC (pinto). Have been struggling with having no charge for weeks now. I've tried two different alternators, had one of them completely rebuilt by a professional, ...
1
vote
1answer
1k views

how fast does the alternator charge the battery?

It would appear that the common word of wisdom is that car alternators provide 50A of output. I actually looked at the supposed specs for my 2008 Jetta 2.5L on the internet -- a compact car -- and it ...
4
votes
2answers
91 views

how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 ...
3
votes
2answers
538 views

would a sulfated discharged 12V battery charge at 12.5V?

I got a Stanley FATMAX RE-CHAGEiT 8AMP Automatic Battery Charger & Maintainer from Walmart for 29,97 USD, which appears to have three states of charging the battery -- detecting the voltage, rapid ...
3
votes
2answers
564 views

Charging batteries thru cigarette lighter

The answer to this may be so obvious that I'm almost too embarrassed to ask; however, here goes: I have a high-end battery charger for my car which charges through the cigarette lighter receptacle. I ...
2
votes
0answers
36 views

Hyundai Accent Diesel 2002 alternator works on day but not when headlights are on

I have purchased Hyundai Accent diesel 2002 four cylinder from my savings .. its start every morning but not at night when the car's headlights are on. I couldn't start it after one or two attempt . ...
2
votes
2answers
1k views

2007 Chevy Aveo - battery, alternator, or something else?

I bought this car when it had 120,000 miles on it, a few weeks ago, for a grand from my friend who sold it to me with the caution that it had a few issues. I am a novice driver and needed a car to get ...
0
votes
1answer
239 views

Can the Chinese EV BYD E6 charge at Tesla charging station?

I am just wondering, are there any customers of this exotic brand, especially in the US? And btw can any other EV (e.g. Nissan Leaf, Toyota RAV4 EV) charge at Tesla's fast charging stations?
1
vote
1answer
83 views

How do I charge an AGM battery?

Not a one that's completely dead, but say an AGM battery that's at 75% and I want to top it off before trying to use it again. Can I use a regular lead acid battery charger? Do I have to worry about ...
7
votes
2answers
158 views

Is any power from the alternator 'free'?

Cars generally (and specifically a Honda Accord 2002) are not very energy-efficient. Given all the inefficiencies, is it "free" to plug in, say, a smartphone into a car to charge while I am driving? ...