Do you put the 9 volt battery on your(lionel,atlas) locomotives? Acid Be Careful !!!!!

[Roger Bielen]

Used one on my first TMCC, took it out, never installed them on other engines, don't miss 'em.

[eZAK]

Although not a big deal you will also loose shut down sounds w/o a batt.

Q; Do NiMH batteries leak?
I've never seen one leak.

[fjerome]

my understanding is that these batteries are to keep sounds active through brief power interruptions. they have nothing to do with actual engine locomotion.

[arnoldafl]

Yes batteries are probably not useful in Engines with TMCC but what about ones with Lionel Railsounds only? How long do these batterries last?

[nblum]

Nope, unnecessary, as you say if you run command mode. Locomotives are on a track with electricity and shouldn't need batteries :). Lionel's, Atlas's, K-Line's, Weaver's, 3rd Rail's don't need them if you run command mode. Waste of time and money, and with a small danger of leakage as you note.

[Anonymous]

Long ago I put a 9 volt battery in my lionel UP GP9. It was a pain to remove the shell and put the battery in. My layout was small and prone to dead spots so the batt was needed. I stored the engine for a while and then I remembered the Batt.. I had to get the engine out of the box and remove the shell and the Batt. I got to the engine in time and no acid had leaked out. The engine was safe. I no longer need to put these 9 volt batts in my engines because I run a constant 18 volts and all of my engines are TMCC. My layout has no dead spots now. My questions are as follows. 1.Do you have to put these Batteries in your engines? 2.Has anyone ever left the Battery in your engine stored and the Batt leaked acid?
One side note if you buy used engines be sure to check for an installed battery. One person I know bought a Lionel Dash 9 with CMD control. He bought the engine at the local GATS show. He bought the engine tested it out and then stored it. He did not know there was a battery installed. a year and a half later he brought the engine to my layout we ran it. I told him about the batteries and he wanted to check his engine. We removed the shell and found that the Batt had leaked acid. The holding bracket for the battery was corroded and discolored. He was mad at the seller because he did warn him about the installed batt. We cleaned the engine and removed all of the acid. The lesson is beware when you when you buy used and always assume there is a battery installed. On new engines there should not be a battery installed from the factory.