Rechargeable batteries for hearing aids

I wish they had worked for me. I really tried. But some of the rechargeables did not make firm contact with the battery connection in my hearing aid. Nor did they do so in the charger. I had to give up after buying a couple sets of the expensive rechargeables, due to insufficient reliability. Would you consider changing your approach from castigating those of us who don’t use these to giving me guidance on how I could? I’d like to solve the problem with these batteries, but have been unable to so far.