I think people sometimes under (or over) estimate the power draw of their vehicles, an Eagletree or a Watts Up Meter is a handy tool and you can adjust gearing to control current draw / amp load, for example my 1/8 Buggy pulls 80 Amps at most on 4s, when I tried 17.5 boosted TC it was around the 120-130 Amp mark (2s). If you're running 1s, but geared up for speed a high amp load wouldn't be a surprise.