Wireless Solar Keyboard K750 for Mac

I am using the K750 right now, it's about 5-7 years old and I've replaced the battery a couple times, I did just now tonite again as it was getting flaky...sure sign of a battery issue. You HAVE to replace the battery at some point as when the battery goes out, you can't just not do it as the keyboa

https://www.logitech.com/en-us/shop/c/keyboards Maybe just check here and look at the K950 or the K650? Btw, I used to own the solar K750 and used that until it completely died. It was one of my favorite keyboards.