These tests are designed to identify potential premature failure problems with solar panels, and panels that meet the standard are more likely to survive in the field. (energysage.com)
dealers claim there is no warranty for wear and tear parts.This is a typical case of premature failure of parts and dealer denying warranty. (cardekho.com)
A battery that simply will not accept charge won't necessarily cause premature failure of the alternator unless it is permanently at a low voltage, in which case see the «shorted» section above. (mechanics.stackexchange.com)