Ford gave the following reasons for using only silver calcium batteries in their recent cars, but Yuasa automotive batteries with their modern technology more than meet the specification. The problem is it will not charge using my trickle charger. What adding silver/calcium does for the battery. ... Silver calcium batteries … Calcium batteries are acid batteries, however the lead plate is impregnated with calcium rather than antimony as in a conventional lead acid battery. The ideal charging voltage for a calcium battery is 14.8V for the recombination process to properly occur.. Very popular uses are engine starting and limited starting/deep cycle applications. Antimony and calcium are used to strengthen the plates as lead is relatively soft. Ford - Reasons For Silver Calcium Reason 1: Charge voltage tolerance increased from 14.4V to 14.8V The grids made from lead-calcium-silver alloy, instead of the traditional lead-antimony alloy or lead-calcium alloy. Some customers think that calcium batteries are completely different to lead acid batteries… Both calcium and antimony batteries have … NOTE: In the following discussion, standard room temperature (20 °C) is assumed, since battery voltage set-points are very temperature-dependent. The Calcium battery is part of the Lead acid battery’s evolution, in the same way that the Enhanced Cyclic Mat or Advanced Flooded Battery is. “Grids are still made of Lead. They stand out for its resistance to corrosion and the destructive effects of high temperatures. Some customers think that calcium batteries are completely different to lead acid batteries, but they just represent another generation of the lead acid battery. They stand out for its resistance to corrosion and the destructive effects of high temperatures. A Guide To Lead-Acid Batteries Structure and Operation Most lead-acid batteries are constructed with the positive electrode (the anode) made from a lead-antimony alloy with lead (IV) oxide pressed into it, although batteries designed for maximum life use a lead-calcium alloy. 3. Other types of lead acid batteries are also sealed, as explained below. They stand out for its resistance to corrosion and the destructive effects of high temperatures. By adding calcium to the lead plates, the gassing voltage is increased by about 0.4v, from the 14.4v of a conventional hybrid lead-acid battery to 14.8v. Yes Diego, Silver.calcium batteries re still lead acid. Silver Calcium alloy batteries are a type of lead-acid battery with grids made from lead-calcium-silver alloy, instead of the traditional lead-antimony alloy or newer lead-calcium alloy. "In his search for a suitable U.S. replacement for the original Varta silver calcium batteries, our member Box learned that the charging voltages in the X350/X358 are higher than in most cars, and higher than many conventional lead acid or AGM batteries are comfortable with. Calcium batteries support around 30,000 starts, giving more durability than lead acid - and you get 18% more starting power, helpful for cold weather journeys. VRLA Batteries Silver Calcium alloy batteries are a lead-acid battery. The typical lead acid charging voltage is between 2.15 volts per cell (12.9 volts for a 6 cell battery) and 2.35 volts per cell (14.1 volts for a 6 cell battery).. Typically less than 0.1% of calcium is needed to give strength (note calcium is added to the grid alloy in both calcium and hybrid batteries). Silver Calcium alloy batteries are a type of lead-acid battery with grids made from lead-calcium-silver alloy, instead of the traditional lead-antimony alloy or newer lead-calcium alloy. For this type of battery the typical absorption voltage range 14.2 to 14.7 volts; typical float voltage range 13.1 to 13.4 volts.