Dawn

I have a Ryobi RY48110 that I bought May 2019. When I began using it this spring I noticed the AuxPower would not register. I also have 1/2 the original battery life. Any thoughts on why this occurred? I brought it in to an authorized service center to have it "repaired". I honestly think they didn't do anything to it. Of course they only warranty the battery for 1 year. I'd appreciate any insights to help me repair this problem.