Alrite my 08 Kfx 450r runs great when it runs but it's the second time I've replaced the battery in the last two years and the latest ones dead now too! I replace the battery and it starts and runs fine but after it sits for more that a day or so it will be completely dead. I've tried to charge the battery on a slow charge for hours but nothing the quad will run if jumped by the battery charger but as soon as the charger is removed the quad stops running. Any help? Please I'm sick of buying batteries!