Originally Posted by
09 lex 250
currently at my local track ive noticed that mainly all the electric classes are only 5 min per heat. My question is that will a nimh battery dump fast during a heat? or will i have sufficent runtime to get me through? 15 years ago we ran 4 min heats and had plenty of life left. or shoud i just go lipo and call it a day?
thanks for any info

It would depend on how old and what kind of Nimh battery you are running, and how much power you are pulling. A well maintained newer Nimh pack will get you 5 minutes with PLENTY to spare for just about any kind of racing.
But even having said that... start looking into the move to lipo! SOOO much easier.