Battery in PS-2 Hudson tender

I would say yes, in answer to your question.  Your battery appears to be good so, go for a reset and enjoy all the noise your locomotive can make.

Personally, I'd just put a new set of batteries in since you're already gone to the trouble of taking them out.  At ten years old, they're at the end of any useful life.

The 2.4V seem to be pretty good with not leaking or gassing out.  Worst I have seen with really old ones is the wire lead becomes corroded.  The 2.4VAA seem to last 7 to 8 years if taken care of.  The 2.4V AAA in smaller switcher type engines, don't last as long.  But again never seen one leak.  G

I would throw  (properly discard) them out.  Would you run a 10 year old battery in the family car?

No, but I get ten years out of an aircraft battery.  My angst was corrosion, not operation.  The reset requires a TIU, which I do not have.  I will probably convert it to Tsunami in the end - but it was so easy to retain the PS-2 once I figured out the polarity and how many stripes to put on the flywheel (I changed the drivers and gears).

An aircraft battery is not the same as a train battery.    Good luck with your 10 year old  AC battery.  

If it were a real airplane, I sure wouldn't fly it with a 10 year old battery!  Of course, if you're only VFR, the engine will run with no outside electrical power, so I guess you'd probably get back.  Of course, if you need the navigation, radios, lights, etc. you might be in trouble.

John, you are one hundred percent correct.   Having been an aircraft/helicopter mechanic I know a bit about the subject.    I do not know what he had that in.  As we know, most larger AC start off the APU.

Well, I'm just the airplane driver, but I do consider the condition of the equipment before I leave the ground.

You must be a 3 year guy on your battery John.  I would fly with you anytime.

Let's just say that I like everything to work properly and have plenty of gas in the tank when I take off.

Leaking of alkaline batteries is frequent (let's not restart a brand discussion).  Leaking of rechargeables is not, BUT, it can happen and when something can happen, some day it will.  If I were putting a loco into long-term storage, I'd remove the battery.  I've gotten 10 years of life from MTH 2.4V batteries, but the above advice is sound.  Replace them when ready to resume using the loco, and for now leave them out. 

I have heard that aged supercaps can leak.  Not sure about that.

Thanks.  I will leave them out.  Is there a long-term solution, a BCRU or something?

On the airplane - you guys flatter me!  I could not afford an aircraft with an APU.  With batteries approaching $250 each I wait until they fail before ordering another.  A battery that goes weak in flight is typically not a problem in a small aircraft - if it has the oomph to start the engine, you are probably ok unless the charging system goes bad.  I know folks who replace them every two years.

Car batteries are not cheap either.  I replace them on condition, too, and have averaged six years.  I always clean the terminals before rushing out to get a new battery.

For a long term solution to TMCC batteries, I developed this.  It's a once-and-done product.

 YLB - RailSounds Battery Replacement