undervoltage

"Undervoltage" occurs when the nominal voltage drops below 90% for more than 1 minute.

Most electric coolers have an undervoltage shutoff at around 10 or 10.5 volts to prevent this.

The battery can still be charged while "bucking" an overvoltage, but while "boosting" an undervoltage, the transformer output is too low to charge the batteries.

This type of UPS is able to tolerate continuous undervoltage brownouts and overvoltage surges without consuming the limited reserve battery power.

The purpose of the PWRCHK is to provide a means for the spacecraft to automatically configure itself to a safe, low-power operating mode following a power subsystem undervoltage condition or a CCS tolerance detector trip.

MIL-STD-704 defines the various electrical characteristics of aircraft DC and AC power supplies such as voltage, frequency, phase, power factor, ripple, maximum current, electrical noise and abnormal conditions (overvoltage and undervoltage).

However, another satellite launched into orbit with Mozhayets-5 - the European Space Agency's (ESA) student-built SSETI Express spacecraft - was placed in a safe mode due to an undervoltage caused by battery charging problems, after reaching its own proper orbit.