PURCHASED 2 XS POWER LITHIUM BATTERIES FOR AN 06 FORD E350 VAN AND ONE OF THEM SHORTED OUT AND ALMOST BURNED MY VAN TO THE GROUND! THERE ARE 2 IN A DIESEL AND ONE OF THEM SHORTED OUT, FIRE EXTINGUISHER WILL NOT PUT THE FIRE OUT, WE HAD TO DROP THE BATTERY TRAYS WITH PLASTIC AND FIRE ALMOST HITTING OUR HANDS, THEN WHEN I CALLED THEM THEY TOLD ME " THEY HAD NO DESIRE TO HELP ME" THEY LASTED JUST OVER A YEAR, ONLY ONE OF THEM FAILED INTERNALLY, THE OTHER ONE MOUNTED WITHIN 2 INCHES AND WIRED IN SERIES SO YOU GET AMPERAGE BUT NOT VOLTAGE INCREASED, DIRECT REPLACEMENTS, DID NOT FAIL AND THE CUSTOMER SERVICE GUY DEVIN, TRIED TO BLAME IT ON MY ALTERNATOR. AGAIN, STOCK 120 AMP ALTERNATOR, BUT THE BATTERY ON THE SAME CIRCUIT, HAD NO ISSUES, COMPLETE TRASH, DO NOT BUY!