Donna Cornwell wrote:

> If you use the rechargeable battery, be sure to charge it up between meetings so that you start each meeting with it fully charged.

This isn’t a casually obvious suggestion: as the battery charge wanes, the robot performance changes drastically. Some teams prefer to use non-rechargeables for this reason, replacing them before each tuning / competition run for consistency (yeah, you wind up with a ton of barely-used batteries that way, but we all have lots of things that use AAs!).