We have done some testing to see how much current is drawn by the LabQuest charging station. Below are some data. Note: All these tests were done at 120V AC in the U.S.

– When the charging station is plugged in, but no units are charging, the current drawn is 0.00 A.

– When 4 LabQuests are charging, we find the charging station draws about 0.06 A. The draw is the same whether the LabQuests are nearly dead or close to being fully charged. Note: If the four LabQuests are left on while charging (which they should not be), the charging station draws about 0.16 A.

– When all 4 LabQuests are fully charged, the current draw returns to 0.00 A.

– The rating on the power supply to the charging station is 0.8 A. The engineers say that is much higher to take care of surge currents.