How long can it last after a full charge?

A: The WattCycle 12V 12Ah battery capacity means it can deliver 12 ampere hours (Ah) of power under ideal conditions. The duration depends on the power requirements of the connected device. In general, the following formula can be used to estimate the battery's duration:

Duration (Hours) = (Battery Capacity (Ah) * Nominal Voltage) / Device Power (in Watts, W)

For example, if the device has a power of 60W, then:

Duration (hours) = (12Ah*12.8) / 60W = 2.56 hours = 2 hours 33 minutes

This is an estimate under ideal circumstances. In actual use, the battery duration may be affected by various factors, such as temperature, usage environment, equipment efficiency, etc.