Most of the battery operated ones don't work for shit. I have the same issues with arthritis and I grind a half ounce a day to smoke or vape.
Of all the grinders I bought only 2 were worth a shit. The Chewy and the Chomper. I bought the Chewy 2 and it was awesome but just too damn small for my needs. Might be perfect for you. A little pricey but well worth it. Great customer service from the seller/manufacturer in Ireland. also. I did see a bigger one called the banana or something but I ended up using the CHOMPER....
https://www.youtube.com/watch?v=bxd...B075XQW2RQ/ref=dp_olp_0?ie=UTF8&condition=all
https://bananabros.com/
That video is cool, I hate grinders, I cut my weed up with scissors but it's time consuming.
First time I ever heard of a salad shooter, think I might pull the trigger on one.