The pilot indicator displays the DC power voltage being supplied to the power distribution system. Simultaneous display of DC amperage is displayed only when the starter-generator is supplying power to the distribution system. The indicator right scale displays the voltage. The left scale displays the amperage. The circuit is powered by the DC essential bus and protected by the DCVM circuit breaker. [ E ] [M ] There is no means of monitoring amperage load when DC power is supplied to the TRU. Overcharging of the battery or a thermal runaway condition could occur with no indication to the pilot.