Electrical Transient Suppression Properties of Sealed Nickel-Cadmium and Sealed Lead Batteries

Sealed nickel-cadmium and sealed lead batteries offer a practical means for holding up volatile electronic memories and for relieving the automotive SLI battery of intermittent electronic loads during ignition-off periods. While serving the more conventional functions, the low dynamic impedance of these sealed batteries can act in conjunction with a simple charging circuit, to significantly isolate the electronic circuits they serve from damaging and disrupting electrical system transients such as load dump.