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Self Charging Battery Back-Up
The two special AA size 1.5v NiCad self-charging batteries recharges continuously
during train operation and should last for up to five years. The batteries are dry battery
that should not leak or cause any damage to your engine. Depending upon when your
engine was built, they may need to be charged right out of the box.
If engine sounds seem distorted or garbled at low voltages or become silent when power
from the transformer is turned off, test the batteries to determine whether they should be
recharged or replaced.
Test: Put the engine in neutral and leave the track voltage at 10-12 volts (high enough for
the lights toshine brightly and the engine to move steadily) for 15 minutes.
Recharge: If the sounds are improved at the end of the 15-minute test charge, the
batteries charge has run down and can be recharged. There are a number of ways you can
do this:
Leave the engine in neutral with track
voltage at 10-12 volts for 6-7 hours so
the batteries can fully recharge (if your
engine has a smoke unit, be sure it is
turned off).
Use M.T.H.'s battery recharger (sold
separately) that plugs into a wall outlet
and a special port under the engine to
recharge the batteries overnight without
leaving it on the track. (See figure 11)
Replace: If the sounds are not improved
at the end of the 15-minute test charge, it
Unhook Wires, Remove
and Replace Battery
is time to replace the batteries. Available
Figure 10
through M.T.H. Parts. (See figure 10)
Proto-Sound 2.0
DO NOT substitute alkaline batteries for
Battery Charging Port
these NiCad batteries. Using alkaline
batteries in this system will result in
damage to the PS 2.0 circuit board
and/or the batteries.
Figure 11
16
RailKing R-12 Subway Set
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