Train Control Systems / KA3 KeepAlive (SCALE=HO) Part # 745-2000
Scale: HO Scale N Scale
With Black w/ White Stripe wire and Blue wire for power.
The Keep Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA3 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the effciency of the motor). This KA3 will work with Keep Alive® ready decoders and most non-TCS decoders. TCS decoders manufactured after February 2012 are Keep Alive® ready.
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I have an HO engine that had a difficult time making it through my switches. It would usually stop and then start up again after a couple seconds and continue on its way to the next switch. I looked at the DCC chip in the engine that there were two wires that I assumed were for a Keep Alive type battery pack. I ordered this Keep Alive and did a quick solder job. Now my engine crawls slowly through the switches with no problems. Will buy more of these as I need them for other engines.