Phillips’ V-Check1 Battery Status Indictor alerts operators during pretrip inspections that battery power may be lower than required to complete the day’s tasks. V-Check1, available in 12V and 24V versions, continuously monitors the state of power for any battery, particularly liftgate batteries.
If battery voltage is more than 12.4V or 75 percent power, the LED light flashes green; and if the voltage falls below 12.39V, the light will blink red, indicating that batteries should be charged before the trailer leaves on the next trip.
