If it is totally dead charge it for 2 hours at 10 amps.
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
Depends on the amperage of the charger. A 10 amp charger will charge it in about 1 hour.
Depends on the amperage you are applying to it. Read the charger manual.
A good auto battery will hold it's charge for at least 6 months or longer.
Yes as long as it is the right voltage: a 6v battery needs a 6v charger; a 12v battery needs a 12v charger. <><><> If you can set the battery charger's output to give either a 6 or a 12 volt output, then you must always remember to set it to 6 volts if you want to use it to charge a 6 volt motorcycle car battery.
The battery is a 12V car battery.
Voltage is the same but amp hour capacity of the car battery is much higher.
Yes, you can do this.
No
A trickle charger is a car battery charger that is designed to be left on a car for very long periods of time to re-charge that car battery by slowly adding charge to the battery.
As long as both batteries are the same voltage, you can jump start with the battery. If you want to charge the battery then use a battery charger.
If your leads are long enough, yes.