/r/gamemaker hosts a 48-hour game design and development contest called the gm(48) every quarter. You can find out more about the gm(48) here.
If properly cared for, however, you should get a number of years out of your battery, assuming that you own a gasoline powered or diesel fueled vehicle. If you own a hybrid, or an electric car, you can expect to get an amazing eight years of auto battery life before you have to think about replacing it. Batteries.
Four Methods:Preparing to Charge the BatteryUsing a Speed or Trickle ChargerJump Starting Your BatteryTroubleshooting Battery IssuesCommunity Q&A. Car batteries stay charged by harnessing the extra power of the car's engine, and most can go for at least five years without needing to be replaced or recharged. But even the best car batteries will run out of power eventually â or lose their charge prematurely when you leave your lights on too long.