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Ah stands for Ampere hours. It is a measure of capacity, how much electricity the battery can hold.
Eg: A 12 volt 5 Ah battery can deliver 12v at 5 amps for 1 hour. Or 12v at 0.5 amps for 10 hours and so on.
Remember. Voltage is supplied by the battery but current/ amps are drawn by the appliance. Power in watts is calculated as volts x amps. So for instance a 12 volt bulb drawing 2 amps is: 12x2=24 so it is a 24 watt bulb. so on a 12v 5ah battery it will burn for about 2.5 hours. This is why car batteries are quite big for only a 12 volt battery, the massive current drawn by just turning the engine would flatten a small battery, and probably still wouldn't start even then.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoAh, or ampere-hour tells you the capacity of the battery.
If you have a 10Ah battery it can be expected to maintain a decent voltage while delivering 10A for one hour, or 5A for two hours, or 1A for 10 hours or basically any other combination of current x time that'll work out as 10.
Wiki User
∙ 16y agoampere-hour
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Can you replace a battery that is rated at 4ah with a larger ah battery?
Yes, it mAh or Ah is how long the battery lasts, it does not affect performance.
Does more ah in a battery mean its stronger?
Depends on what you mean by stronger. Ah stands for ampere hour, which is a unit of energy. A battery with 1 Ah can deliver a current of 1 Ampere for 1 hour, or 2 Amperes for 30 minutes, etc. The voltage of a battery tells you how much current the battery will produce through a given resistance; more voltage is probably closer to what you mean by stronger, since knowing the current and the voltage allows you to know the power released by the battery. So, for a given resistance, more voltage = more power released by the battery. So: more Ah is like having a larger gas tank; more voltage is like having more horse power.
Can you use a 12v 7.2 ah battery to replace a 12v 4 ah battery in an alarm system?
Yes
Can I replace a 12v 33ah battery with a 12v 4.5 ah battery for a motorized scooter?
No, it does not have enough capacity (i.e. ah rating).
Describe the difference of V and Ah in a battery?
V is the batteries rated voltage. Ah is the amp-hour of the battery. This is a rating of how many amps it can supply for a given period of time. For example a 600 Ah battery with a 100 A load means that the battery should last 6 hours.
Will a 12 volt 75 ah battery charger can be used to charge a 12 volt 150 ah battery?
Yes. In about two to two and a half hours, depending on the condition of the battery.
What type of battery that suits Toyota?
12 Volt 70 AH battery
Can a 15 ah battery can be used to supply 12v to a plc pannel instead of 14 ah battery?
Yes as long as they are both 12 volt batteries.
What type of battery that suits Toyota innova?
12 Volt 70 AH battery
Would a 36V 230 Ah 6hr 335 Ah 20hr traction battery charge on a DC volts24v DCamps20A battery charger?
NO, in order to 'charge' a battery, the charging device must be at a higher voltage than the battery in order for current to flow to the battery.
Battery in a 71 beetle?
12v and 36 ah
What is the Ah for main battery of Mercedes E320 2007?
It stands for amp hours. Ah Will be 760 or 850.
