What does the 12 Ah stand for on my UltraTech UT12120 SLA Alarm Battery?
What does the 12 Ah stand for on my UltraTech UT12120 SLA Alarm Battery?
The 12Ah (ampere hours) on your UltraTech UT12120 is a measure of the battery's discharge capacity.
Ah is traditionally measured over a 20 hour period. Therefore, when you take a battery's Ah and divide it by 20, the result tells you how many amps of current can be drawn from the battery consistently over a 20 hour period before the battery is dead.
In the case of your UT12120, it has a 12Ah capacity. This means the battery can draw 0.6 amps (12Ah divided by 20 hours) continuously for 20 straight hours before the battery's power is completely depleted.