How about this for convenience and utility? Get this Battery Charging Station With USB and you’ll never be out of batteries again. It has six bays for AA, AAA, C,D, 9V and 12V batteries, plus, two USB ports for smart phones and other devices. This station will charge regular standard and rechargeable batteries and will extend a regular battery life up to ten times. Now talk about a money saving appliance! An easy to read LCD screen lets you know the status of the battery. It includes a UL adapter. Its dimensions are 4 1/2”x4 1/2”x5 1/2”.