Yes, if the charger does not automatically shut down when the battery is fully charged.
A laptop battery can be charged while using it, but it would not be likely to become overcharged when the laptop is in use, unless the laptop goes into a sleep or dormant state.
It shouldn't - the laptop should be fitted with circuitry to stop charging the battery once it's full. That way, the battery cannot be overcharged. If you're always using the laptop at home (or near a mains socket) - you can simply remove the battery, and just run it off the mains.
If it is an automatic charger let it charge until the charger shuts off.
As long as it is a 12 volt battery you can if you set the charger on low.
You do not charge a battery using a battery eliminator. The eliminator is not a charger, it is an eliminator that allows you to run the device.
Sorry, but that is not likely to work. Both the voltage and amperage provided by a charger for a laptop battery will not be correct for a car battery. It is likely that you will damage the charger.
Yes, the type of charger affects the battery life of your device; using a charger not recommended by your manufacturer ruins the battery life of your device.
ya. we are using diode in a battery charger to convert ac into dc. 230v dc is step down by using step down transformer
Either the battery is not retaining its charge - OR - the charger isn't charging the battery. Either way try using another battery - or charger.
i have been using a wall charger for about 1.5 years, and my ipod and its battery still work fine
Either the charger is too powerful for your battery, like when using a 24 V truck/tractor charger on a 12 V battery. Or there's something seriously wrong with your battery, like too low fluid level.
There is no safe way to charge ANY battery without a charger rated for that particular battery. You could easily destroy the battery if you try.