I was running my 2WD Stampede and afterwords the 7 cell hump battery pack was very hot! Even underneath the chassis was HOT! I had this battery since about 2012.
I was running on a paved road. To me it didn't seem to have a lot of power.
Is it time to throw it away?
Depends on the temps. As nimhs are used, they get hot as current is drawn from the battery from resistance. If it gets so hot that the battery starts leaking then I would definitely consider it trash. Have your run times dropped much?
Spartan Jet Boat
My run times seems to be dropping. The last run felt like "where's the power at"? I am using the Traxxas ez peak 4amp charger. Do you know of any good chargers out in the market that can charge two batteries at once with balancing? I was looking at the Duratrax Onyx 245.