[Billfred]

Mind you, many other things (current draw on the robot, cycles of use on the robot, physical abuse seen on and off the robot, storage conditions) can also determine how long a battery will last before it's due to retire from the match rotation.

On 2815, our standard procedure is to charge at 2A at home and overnight at competitions, then 6A during the day at competitions to ensure we have enough batteries ready. We also started using a Battery Beak to spot-check battery health; if you don't have one, another team nearby might.

For the capacity of these batteries, 6A until automatic cutoff shouldn't have serious negative effects...but we figure it's better not to tempt fate.

And even if your batteries have weakened to the point that they're not optimal for match use, never underestimate the utility of batteries for powering your electrical board during testing, or for powering an inverter for laptops in the stands. (I've seen a scouting team with a small cart that held a robot battery, an inverter, and a network switch for their laptop-based scouting network. Kinda slick.)