Have any one heard or used their batteries before? They are going to start selling the D4900 in December, which is can be used for ours jags battery replacement .

 

Never heard of them. If I were replacing my battery today, I'd buy a Duralast Platinum size H8 from Autozone. 850CCA, 170 minutes of reserve, abrsobed glass mat (AGM) technology, so it's completely sealed and requires no vent tube.

 

The pre sale price for D4900 is $349. Why they are so expensive and what is so special in them?

 

Thats a lot of coin for a battery in a stock electrical car. I want to know more on a simple replacement battery that is meant for the jag.

 

I went to xs power web site, they introduce them selfs like the best car battery manufacture.