Tenergy 9V NiMH Rechargeable Batteries, 200mAh Long-Lasting Square Battery for Smoke Alarm/Detector (2 Pack) Review

I bought it for a multimeter and it works fine. AAA elements and now 9V. Of the 8 D cells, one failed to charge and (The Battery Superstore) was promptly replaced. I just sent in a bad battery and received another two days after sending it back. I bought everything else afterwards. I use 32 AA for RC trucks and controllers. That saves a lot in the long run. I've charged AA cells a dozen times or more and they actually last longer the more you use them, like 0.25 ton or more. They were new from…

Do you know the TENS device? It is a cigarette sized power pack used for electrical stimulation of inflamed or healing muscles or surgical sites. I use mine to promote back healing after spinal surgery. It uses a 9 volt battery like the one in your smoke alarm to generate power. I use rechargeable 9 volt batteries to keep battery costs down. But with conventional batteries, a different price has to be paid. Even freshly charged ones don't last long. They "discharge themselves" and after a short

I have a clock radio that uses a 9 volt battery as a backup during power outages. If the power goes out, the clock display will turn off to save power, but the battery will continue to show the time, and if your alarm is set, it will sound as normal. The watch has a low battery indicator to let you know when you need to replace (or charge in my case) the battery. I used one of the first old 9V NiMH batteries that didn't have low self-discharge and had a capacity of 150mAh. and I think about…