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12v , 7Ah means its the capicity of Battery , if load current is 1 amp then battery runs for 7 hrs. AH = Ampere* Current.

12v, 7ah 20hrs its shows load current is 7/20 amp.

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Q: What is the difference between 12v 7ah and a 12v 7ah 20hr?
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What is the difference between 12V 7AH Battery and 12V 12AH Battery?

Both are giving the data about storage capacity of a battery. For Ex. 12V 7AH Battery will run 7 hours if you are driving the load of 1Amp continuously. But 12 12AH Battery will run 12 hours if you are driving the load of 1Amp continuously.


Can you use a 12V 7ah battery to replace a 12V 5ah battery?

Yes, both batteries perform the same, but the 7ah battery holds more charge.


Can you use a 12V 7AH charger to charge a 12V 120AH battery?

Yes it will work quite well.


How long does a 12v 7ah 20hr battery last?

Depends on the current draw of what you hook it up to. At a draw of 7 amps (80 watts) it'll last for one hour. At a draw of 1 amp(12 watts) it'll last for 7 hours, ASO.


What happens if you place 12v 80ah in the place of 12v 7ah?

the 80ah battery will give out power for longer without being charged in the case of a car it means it would take longer before the batery would run flat from leaving something switched on


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.


How long time will be taken by the 12V 7Ah charger to charge a 12V 22Ah battery?

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.


How many watts solar panel need to charge 12volts 7ah battery?

1 watt will do the job.


How do you drop 12vdc 1000mA charger to 12vdc 500mA for 12v 7Ahr battery?

The current rating on a charger ("1000 mA", "500 mA"), usually means the currentthat the charger is capable of supplying if it needs to. It's NOT the current that'salways being pumped out.If your 7AH battery needs 500 mA at some time during the charging operation,then a 1000mA charger is capable of supplying it.


What is the sum of a and b?

The answer of a + b. A and b are both variabls which means that you only add the a and b to get your answer. Lets say you had this problem a(7h+13) you would put 7ah+13a because a goes first in the alphabet and since 13 doesn't have a letter it would be 7ah+13a.


How long will a 7ah battery last with a 300mA draw?

A 7ah battery will hold a 1amp draw for 7 hours. With a smaller draw it will last much longer. In this case more than 3 times longer. 1 amp / .3 amps(300mA) * 7 = 23.33 hours to fully discharged.


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