My dad has 2 truck batteries lying there in the corner of the garage, he has no use for it, so I was wondering how can I put it to use. Seeing that South Africa is suffering from alot of power outages, and somthing called load shedding, I would like to make 1 UPS from those 2 truck batteries. What do I need? What sort of converters and adapters and stuff? And then probably the most important Q of them all, how do I put everything together that once the power is off, I can still run my server and pc's for a few more "hours" or minutes or how ever long those 2 batteries will last, off that UPS made from the 2 truck batteries?