on Wednesday, 26 October 2011.
The XP Series of batteries are designed for use as a supplemental power source.
These batteries are made with the same chemistry to the XS Series but are just designed differently. So this is an entire new design of battery. There is a huge market for high capacity secondary/supplemental power batteries and this is the answer. Great for Marine and the car audio customers that need to add capacity for a lower price.
http://4xspower.com/XPseries-Brochure-LowRes.pdf download this PDF File for more detailed information
XP750 - £99.00
XP950 - £129.00
XP2000 - £269.00
XP2500 - £300.00