Very nice and convenient Power Bank

A beautiful instrument with a sophisticated, slide-battery cover. Even if only a few batteries are inserted in the slots left or right, the Power Bank is already working, are ideal 4 batteries of course, also brings twice the performance. Practically on the go is also the flashlight. At a load from 400mA you can hear a faint, high-pitched tone, but only temporarily, depending on the load, so do not bother us. The switch looks a bit pathetic, but it works. The batteries must be removed for charging and charged with a charger. You have to go just enough while having many, charged batteries, or a solar charger, then you will always have enough power. For this very reasonable price, the purchase is worth in any case.