These are simple, inexpensive, plastic cases used to easily assemble batteries together to form power packs for what ever your need is. I did not want to spend the thousands necessary for a battery welder to do the same job that these do for pennies in comparison. Shown here is a 4 battery pack that I have used (need more than one) to replace the lead acid battery in my truck. It is 1/100th the weight and works fine. It charges faster and works better. You can use these cases to make a pack of any DC voltage you want. When looking for battery packs to replace my automotive battery I say prices of over $150.00 US for 12V power packs with little amperage, got mad and got this going. In the case shown the batteries are wired in series so the voltage is 14.8 +. P.S. I will not charge you $1.00 for each item. $1 should ship several and only if you order a lot will you see any more than 1 dollar of freight. I do not make money on freight

We have cases for 1,2,3 and 4 batteries (shown elsewhere) and you can use them to make anything you want.