It can take anywhere from fifteen minutes to two hours to recharge a normal AA battery, depending on the state of the battery and the charger.
An electromagnet can be created as fast as you can wrap copper wire around a nail and attach the ends to a battery.
The number of amperes is unrelated to the voltage. The maximum amount of current (in amperes) that you can take from the battery depends on the exact build of the battery.
Chemical Electrical Light
Turn off your phone, take off the back and take out the battery. look in the area where the battery sits for a small square sticker. if its white there is no water damage, if the sticker is pink or red the phone has suffered water damage.
I usually allow 40 to 48 hours, but, mind you, I'm talking about a deep freezer. A standard kitchen freezer just can't handle the job - body probably wouldn't fit anyway.
Depends on the battery. Several hours to overnight.
You have to look at the specs on your charger to know.You can buy chargers which claim they can recharge a battery in 30 minutes.Most will take around 30 to 40 hours in theory and about 40% longer in practice.Battery life depends on what you're using the battery for.
About 3 hours, 1 hour is for an 80% battery charge
about 10-20 min 1 day(my ds said)
Depends on how low the battery is but give it 10-15 minutes and it will be fully charged, assuming the alternator is working properly.
You have to take out the battery and recharge it or replace it.
8 hour
It should take a few hours, but if the battery was deeply discharged the lead plates were probably destroyed and the battery is probably permanently dead. You could try recharging it, but it probably wouldn't do any good.
When I plug in my laptop, it does not use the battery to run the computer. Instead, it uses the wall outlet to run the computer and to recharge the battery. So, by leaving my battery in my laptop when it is plugged in, I am recharging my battery and not running it down. If you take the battery out of your laptop and do not recharge it, it will not last long. The computer batteries that I know about can go from 2 to 8 hours without being recharged.
it takes a wii remote about 3or4 hours to recharge
Yes, but it would take a very very long time. You really need at least a 10 amp charger.
It takes about 2 - 3 hours for a full charge