Dear Elroy, we are very sorry for your bad experience this time. We have communicated with you and learned that there are some issues with your wheelchair engine. There is a suggestion that you could go to the store to have a look, hope it will not be too troublesome for you, and we can help you better when we know what the question is. What's more, our batteries are rechargeable, we have confidence in our quality. We will always provide stable warranty service. Hope you are all well, if you have any questions and needs, please feel free to contact us. Looking forward to new update from you. Thank you.