... temperature 3.Short-circuit,Overload protection high quality,prompt 8.4V 1A Charger8.4V 1A Battery Charger (Li-ion battery for 2 series) constant voltage and constant current ... ~50°C)OUTPUTStart, rise, hold time200ms,50ms,30msSeismic10 ~ 500Hz, 2G10min / 1 cycle, duration 60 minutes,each axisPressure ofthe input - output ...