Quote:
Originally Posted by MecaNaught
Batteries really should be a bigger subject in FRC. If you're using a motor shooter, your battery will make or break your shot range and how reliable it will be. We experienced this in 2014, where we had a mini toughbox with two CIM motors attached to a thrower. We also experienced a huge increase in range by applying an electronic anti-oxidization agent to the terminals of our motor controllers.
Every battery you buy will have a different maximum AH, and how much draw it can handle. You can get a little battery beak from Andymark, and it will calculate it in %. Our good batteries are 130%. We had to throw about 6 batteries to the side before this years competition and used mostly new batteries because our older ones would only get about 50% charge.
There's a lot more to testing batteries, and if you're building something that is very reliant on fluctuations in electricity, you should make a test setup to get the exact discharge of each battery.
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You shouldn't really design your shooter to be affected by your battery levels. You should figure out at what speed you want to shoot, and ensure your setup can go faster than that. That way, at the end of your match, when your voltages are lower, your controls will still let you get to your desired RPM.