sulfation is a term used for lead acid batteries having (pbso4)level 2 hard crystals on their lead plates,these crystals sticks at the lead acid battery plates like a layer and their non-conducting behaviour does not allow electrons free flow,this in turns totally disturbs batteries chemistry and the battery stops accepting charge,SULFATION can be avoided by using chemical additives,and by trickle-pulsars,yet if both are used is good.
UPS,inverters,and solar system batteries are more prone to SULFATION as the discharge ratio in these batteries is unspecified,although battery manufacturers produce special batteries for these storage devices,deep cycle batteries are claimed to perform better with UPS,inverters butt still to avoid sulfation these do need additives to keep them perform best and long.One good additive i tried you can get @ www.batteryplus.us
