TCS KA-N1, N Scale Keep-Alive:
TCS 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 KA-N1 can power an N-scale locomotive for 1-2 seconds over dirty track and power interruptions (depending on the number of lights and efficiency of the motor).
 
This Keep Alive® has been specifically designed to be as physically small as possible. This product uses a slightly lower voltage and has a lower capacity compared to our larger Keep Alive products such as the KA1, KA4, etc., and is intended to be used with N-scale decoders, such as the K7D4 and more!
 
For more information on how to connect Keep-Alive® including with other manufacturer's decoder products, click the tab above labeled "Documents."
 
MSRP is $19.95. (Picture courtesy of TCS.)