Battery won’t hold a charge after being fully charged
Device or vehicle won’t start
Battery voltage is very low
Battery drains extremely fast
Battery swells, leaks, or looks damaged
Battery gets unusually hot during charging or use
Battery shows corrosion on terminals
Battery fails a load test
Battery is older than its expected lifespan
Battery charger indicates failure or no charge acceptance
Device shuts off suddenly even with charge remaining
Battery percentage drops to zero very quickly
Battery cannot power the device without being plugged in
Battery gives no response when connected to a charger