By far, one of my favorite new parts to sell, Deka batteries from VacaValley Auto Parts! This 4 yr old pair has maybe 3k miles and barely passed load test 9.6v @ 400 amps. Several hours of charging on each individual battery, and they jumped to 10.0v @ 420 amps!! Easily added few more years now that they plan to drive this Dodge R2500 more. Thanks VacaValley for such a great product!