Large Scale Central

Lithium battery recommendations

So since I’m getting close enough to be thinking about replacing my old NiMH and NiCad batteries on my locomotives since the layout is getting closer to being finished, I need some recommendations on LiOn batteries for USAT 4 axle power.

14.4 v, 2000-3000maH? I think my current set up is 2 7.2v, 1500 maH ran in parallel for 14.4 @3000 maH and it seems to last plenty long.

I have a smart charger already so that part is taken care of.

What are things I should be looking out for?