PS2 8.4 volt battery replacement in Erie ps2 triplex

I did one earlier today.  Remove the front set of drivers and the bracket that holds the driver attachment mount.  Two screws must be removed from the plastic battery bracket.  Lift out and in my case install a new MTH green battery.

I wish I saw your post earlier so I could take a photo for you.  It is very easy to do.

Jerry,

 Are you sure it is a 8.4 battery? I think by the time the first run of Triplex's came out MTH was using 3 volt PS-2 boards. The first ones has a double AA battery holder.

The RK Imperial model was PS2 3 volt, however, all of the Premier PS2 models were 5 volt.

Hi Marty,

May be a stupid question but do you mean remove the front drivers from the engine or Tender? I assume you mean tender.

Thank you all for your replies as I am just a novice at this point.

Jerry

Chuck, the first Triplex was a PS-2  5 volt board.  I currently have one.  The battery is in the locomotive and not the tender.  It is located under (with engine inverted) the front set of drivers inside the boiler.  The battery charging port is located in the tender.  That location may confuse guys to think the battery is also located in the tender.  It is where I stated.  Over the years, I have worked on a great many of these locomotives and they are all the same.

Marty, that's an interesting pearl of wisdom.   I would have also thought the battery was in the tender as I've never worked on one of these.

Barry Broskowitz posted:

The RK Imperial model was PS2 3 volt, however, all of the Premier PS2 models were 5 volt.

Barry, it actually appears that only the original release was a 5V system, there are 2003 and 2008 models that are 3V, at least according to the MTH website:  http://mthtrains.com/20-3101-1  http://mthtrains.com/20-3361-1

Darn glad I am talking to you guys. Thank you very very much for your help.

John, what throws people off is the charging jack in the tender.  People expect the battery to be with it.  As complicated as these look, they come apart with no big problems.  

A general heads up on this engine.  If you get the early (great running) one, please replace the battery with a new battery or whatever you feel ok with.  My engine got a new green MTH battery yesterday.  I get to see these with blown electronics because people go right for the charging jack and feel good about it with the old white battery.  

Marty, if I see the white (or silver) battery, I don't even think about checking if it's good, it hits the trash on the spot!

OK, I thought for sure it was a very early version of 3 volt PS-2 that had 2 double A batteries. Maybe I'm thinking of the G scale version?

John, that is the best advice to give anyone.   The silver battery was short lived as it was junk.  I am a new green battery guy all the way.   I see people try to power these engines with an old battery and you know the rest.