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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
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Can you replace a 12v 18ah battery with a 12v 22ah battery?
yes a 5ah battery is a longer working battery than a 4ah so it is actually better than the 4ah
Can you charge a 12v lawnmower battery with a 12v car battery?
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
What is the backup time of a 600Va inverter with a 135Ah 12v battery?
((135AH*12V)/600VA)*85%Efficiency=2.20Hrs
Can you use a 12V 7Ah charger to charge a 12V 26Ah battery?
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.
What is the cost of 12volt 500Ah battery?
On the Internet I saw a NiMH battery 12V 50 Wh for about $50 USD so ten times that $500
