A:Answer We do not suggest using the powerstation as a full time charger, as the powerstation can only charge up to 500 times. A full cycle is when you recharge the battery from 0% to 100%. Partial cycles, like charging from 25% to 100%, will not count as a full cycle until all of the partials equal 100%. After 500 full cycles, the powerstation battery may provide less than 75% of its original capacity. This is normal for any product with a lithium polymer battery.