I have been racing my (1) 3400 35C wolf pack in stock and mod buggy with a 17.5. Burning less than 1000 mah in a 5 min heat with 4-5 warm up laps and 2-3 cool down laps makes it easy to top off before the next run.

That's 6 runs in a night, 5 min quals., 7 min mains, mod buggy ran last so I ran 5 min more with so little drop off.