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I understand such batteries were installed as OEM in some vehicles by the manufacturers as early as 1997. Vehicles with such batteries are equipped with SMART charging systems therefore it's best to replace with similar types so as not to cause damage to the vehicle's ECU. Anyone with new rides that come equipped with such batteries as OEM.

Just come across this latest info from a battery charger maker. Hope this info will be of use epecially to those who are going to purchase new vehicles from Europe. Will update when more info are make available. =============================================================== Special Battery Chargers for the Latest Calcium/Calcium Batteries New cars are increasingly being delivered with batteries using the latest calcium/calcium technology that demands a completely different form of battery charger. Proven in America from the late 1970s, the new batteries are needed to match the ever-increasing electronic and electrical demands of modern vehicles. They new batteries also have the added benefit of longer shelf life while awaiting delivery. However due to the construction of a calcium/calcium battery being different from lead acid ones, replacements must be of the same type since vehicles using them have a smart charging system. A smart system is also required when charging calcium/calcium batteries out of the vehicle. Ordinary battery chargers can