Questions tagged [charging]

The act of re-vitalising the plates inside a car's battery (voltaic pile)

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11
votes
4answers
55k 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 ...
7
votes
1answer
420 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 ...
8
votes
4answers
13k views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
8
votes
3answers
5k views

Can you charge an electric motorcycle at an electric car charging station?

Do electric motorcycles and cars use the same type of chargers? Can we charge a Zero motorcycle at a Tesla supercharger station? How about at an electric car parking?
7
votes
7answers
139k views

Jumping car with too many amps?

Is it bad to jump your car with too many amps (i.e., with a 1000 amp jumper vs. a 400 amp jumper)? Or does the car regulate how many amps it will take? EDIT: I was told 400 amps is enough for most ...
4
votes
2answers
3k 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 ...
4
votes
2answers
61 views

Battery only charges with parallel load - why? recoverable, or replace?

As a followup to Little/no charging but alternator and battery test good, the battery is only charging when the charger has a significant load in parallel with it (e.g. turning the key to the on ...