Train Control Systems KA2-C Keep Alive 1457

Train Control Systems KA2-C Keep Alive 1457

Marsoni

M251S

$29.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Train Control Systems KA2-C Keep Alive 1457TCS Keep Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. Newly redesigned at half the size of a KA4, the KA2 will power HO or N scale locomotives with approx. 30% of the capacitance of KA3 KA4 devices (depending on the locomotive and motor). This Keep Alive includes a 2 Pin Quick Connector Harness with which to attach it to a decoder. Dimensions: 0. 35" x 0. 35" x

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We offer a 30-day return/exchange service after receiving.
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I realize I am the minority. This ball has great reviews. So it has to just be my bad luck. But it worked great the 1st day. Had some problems with getting it to turn on the next day. After that it never came on again. I bought new batteries and put 2 new batteries in it. It still did not light up. Other than that, it’s great and seems durable. I just can’t get the lights to work on it.

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Reviewed in the United States on March 11, 2026

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Amazon Customer

Bozeman, US

★★★★★ 5

Very durable and my dog loves it.

This is a great ball for the dog. It is very durable and has led light inside. Easy for me to throw and great for playing with my dog. No noise just the lights. What a great value. Even the smaller dogs can play with this one. Smaller and lighter .

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Reviewed in the United States on January 3, 2026

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Mark Phelan

Lowell, US

★★★★★ 4

Nighttime is play time.

Bright and bouncy. My dogs enjoy its unpredictable movements.

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Reviewed in the United States on November 2, 2025

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SGD

Grantham, US

★★★★★ 5

Sturdy For Chewers; Weeks Later Still Lights Up

This item is fantastic. We have two rottweilers and these two tou balls have stood the test of time. Weeks later and it STILL lights up! No other ball has survived our dogs. I highly recommend this item to anyone. Our dogs love the lights.

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Reviewed in the United States on November 2, 2025

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Kim S Rehrig

Bozeman, US

★★★★★ 5

It is durable! Lights still working after a month of use

This is the first ball that my dog hasn’t been able to break the lights!

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Reviewed in the United States on December 6, 2025