Seismic test was carried out on 24V SCR based Float cum Boost Battery Charger. The acceleration levels of Required Response Spectrum (RRS) at 5% damping prescribed in IS 1893 (Part-1) – 2002, zone V was increased by 10% and used to generate compatible time histories and these time histories are used to excite the shake as per test parameter. RRS plus 10% and Achieved Test Response Spectrum (TRS). The TRS envelopes the RRS plus 10% over the given frequency range for Seismic test. Time history of response recorded by accelerometers and strain gauges mounted on 24V SCR based Float Cum Boost Charger during Seismic test.