[pfreivald]

Especially for rookies:

It is important to note that extra batteries and chargers shouldn't be considered optional -- they are necessary to compete. Depending on the year, we would sometimes go through a battery every match (and in other years it would take three times that, or more, to drain a battery to the point where we wanted to replace it).

Stalled drive motors due to pushing matches, extreme amounts of pneumatic usage (and thus a continuously-running compressor), etc, can really create quite a drain, and it would be quite disappointing to get into the tournament at your regional and not have sufficient batteries for the job!

Every game should start with a fully topped-off battery, and some of those chargers are S-L-O-W. Make sure you have enough!