12v means it is suitable for any 12v dc current purpose the 18ah means it has an amp hour rating of 18 its a measure of how long the battery can work from full charge until it would need to be charged again ex. the bigger the ah rating the longer you could turn the starter for before the battery would run flat
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
((135AH*12V)/600VA)*85%Efficiency=2.20Hrs
Yes, the amp hour rating gives you an idea of the capacity of the battery and charger. The charger and battery need to have the same voltages. i.e. dont try to charge a 6v battery with a 12 v charger. The battery will be charged until it is full.
On the Internet I saw a NiMH battery 12V 50 Wh for about $50 USD so ten times that $500
YES
Yes; the 33 amp hours battery will crank longer.
Yes; the 33 amp hours battery will crank longer.
12v means it is suitable for any 12v dc current purpose the 18ah means it has an amp hour rating of 18 its a measure of how long the battery can work from full charge until it would need to be charged again ex. the bigger the ah rating the longer you could turn the starter for before the battery would run flat
You can replace a battery with a battery of the same voltage but greater capacity as long as it will physically fit.
Yes
Yes, you can do this.
No, it does not have enough capacity (i.e. ah rating).
Yes, both batteries perform the same, but the 7ah battery holds more charge.
A charger designed for a 12 volt battery should not be used to charge an 8.4V battery. It is likely to damage the battery and in the worst case can cause a fire. There are some chargers that can be used with a variety of battery voltages and chemistries but unless you are certain that the charger is safe and effective on a different battery voltage, assume that it cannot be used.
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
The battery is a 12V car battery.