I have both types of MTH PS1 and PS2 and operate strictly conventional. I like to operate at slow speeds and have been concerned that I am not keeping the batteries charged. I operate daily and have begun a schedule of monthly charging the batteries with external chargers. Is there a minimum operating track voltage that must be maintained to keep the battery charged? If I knew how to spell paranoia I would use term.

Bud

From my notes on Proto Sound Batteries:

M.T.H. strongly encourages owners of Proto-Sound 1 engines to avoid these issues from occurring by making sure that the battery is sufficiently charged prior to operation. Keeping the battery charged should prevent the above problems from occurring. A simple test to see if the battery is sufficiently charged is to turn on track power and listen for the engine startup sounds to play. After hearing the sounds play, turn off track power and determine how long the sounds continue to play. If the sounds play for 8 to 12 seconds, your battery is sufficiently charged. If not, turn track power back on (at 12 to 14 volts) and let the engine sit on the track for a minimum of one hour. After an hour or longer, turn off track power and time how long the sounds play. If the sounds still fail to play for eight to ten seconds, replace the battery. Please note that a full charge cycle is 16 hours.


Mort