exactly as described although unused as yet. it's a backup, my original has lasted much longer than expected.

These are hit and miss on charging and on working in my hearing aids. Because the batteries are not flat on the largest contact surface, they do not always turn on or charge. If I rotate the battery in my hearing aid and then re-try, I can sometimes get the hearing aid to turn on. At first I thought I was having battery failures, but the fact that function is intermittent says this is not a dead battery. It is a battery whose form factor is incompatible with consistent function due to uneven surfaces. I hope this is helpful. And I hope it helps with quality control of these items. I like rechargeable HA batteries, I use them at home. But I have to use regular batteries when running my company, since I can't rely on these to function consistently during business meetings and skype calls.

These batteries are recommended for my Siemens hearing aids, and my original pair lasted for over 13 months with regular charging on the recommended Siemens charger. Charges lasted for about eight hours on average during the day.

I would expect this pair to work just as well, but will revise this review if they do not last as long.

Robert C. Ross
April 2017

What can I say other than how many stars i gave it. Product is good and served it's purpose.

These are great. They are less expensive than what I get from my audiologist and they arrive on time. This is my second set. The first set lasted a year and five months. I was amazed. They charge easily in my Rexton Hearing Aid charger and I have never lost power no matter how long I wear my hearing aid.