The term "Sealed Maintenance-Free," in my opinion, is a marketing-driven term. In the early 1980's, when telephone Private Branch Exchanges (PBX's) were being deployed into customer premises, computer...

The first point is that resistance testing and impedance testing are carried out by similar but importantly different methods; resistance is measured by using a DC current to perturb (excite) the...

There are a myriad of codes, standards, guides and practices associated with lead-acid and nickel cadmium stationary batteries. A former colleague of mine and a code expert, used to say that, "the...

Switched Mode Rectifier/chargers (SMR's) are the dominant method of stationary battery charging for telecommunications, information technology (IT) and other standby power application. The vast...