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.
Ah, 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.
ampere-hour
Yes, it mAh or Ah is how long the battery lasts, it does not affect performance.
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.
Yes
No, it does not have enough capacity (i.e. ah rating).
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.
Yes. In about two to two and a half hours, depending on the condition of the battery.
12 Volt 70 AH battery
Yes as long as they are both 12 volt batteries.
12 Volt 70 AH battery
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.
12v and 36 ah
It stands for amp hours. Ah Will be 760 or 850.