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You can. I have bought almost 5 of them already! You have to charge them every 30 days even when they are not getting used (winter). If not the fluid inside will dry out. I would check the fuse though, too. We've had to replace a few of those also. But you have to go to the yamaha raptor page and you can pull up replacement parts. I think they are right around $40 each. If you still have your owners manual, that will also tell you how to order more! :) Good Luck, hope that helps. But I dont think walmart sells them anymore, the batteries they sell are a newer version and the adapter dont fit, it is smaller.