Are these mercury free? How long does it last in a single charge?
583438
I am not familiar with the manufacturing constituents of the batteries and could not comment whether any mercury is involved. A single charge lasts at least 12 - 14 hours. I charge the batteries in my hearing aids each night for approximately 8 hours. They perform well until I remove them prior to bed.
583439
No information on mercury. I put them in the charger at bedtime. I have never had them run down, even in an 18 hour day
583440
My batteries last about a year (10 to 12 months) before they don't charge any longer or hold a charge. Each charge will list about 14 to 16 hours and they take about six hours to fully recharge. Don't know if they are mercury free.
583441
Sorry, I can't answer on the mercury free. I thought all batteries contained mercury. I put them in my charger every night and they last the day. I replace them sometime getting close to a year from when I purchase them. I've always used them and like them. Much less expensive than the regular batteries.
1977618
I do not know the mAh ratting for this battery. I spent a few minutes on the internet and couldn't find it. I use Ray-O-Vac for my mother-in-law's hearing aids because our audiologist said it was beast. I use the mercury-free batteries because I think they are safer for the environment when they are disposed of. Environmental mercury is bad stuff!
1893103
I seriously hope not. And if there is, I don't think the manufacturer would be advertising that fact. Feel free to get them tested and I'll join in the class action lawsuit if you find lead (or chromium or uranium) in them!
596207
Please note that all hearing aid batteries are Zinc Air. What you are probably referring to is batteries with Mercury, which would be the Power One Size 312 hearing aid batteries. Any of the ones listed as Mercury Free would not contain Mercury, and most likely, not be what you are looking for.
47200
According to the rear of the package, there is an International symbol (trash can with an "X" through it) meaning dispose of properly and beneath it are the symbols for both Mercury (Hg) and Lead (Pb). So yes both of these elements are present, but it gives no indication of how much of each.
1508750
Mercury is being banned in hearing aid batteries because mercury is not good for us. I just got hearing aids in May so this is the only battery i have used. They last about a week.
1713356
You can charge any brand as long as it is Nickle Metal Hydride. You can also recharge Alkaline, but that kind should be completely dead to avoid the "memory" effect. Truly, Hank
443460
Before I ordered them, I read on another website that they were BPA, lead and something else free. The something else was a long name I can't remember.
1061636
Hi James: I also thought they were lithium but they are not. They are an upgraded NiCad. The ones I bought are working great. Found out that you do NOT keep them on a charger all the time. Use until run down then recharge and remove from charger when charged. These have lasted over 2 years. The older non upgraded lasted 6 to 9 months but I kept them on the charger all the time.
762853
Mercury free is pretty much all you will find these days. They are different from older batteries in that they use oxygen from the air to produce power, which is why there is a sticker on them covering a small hole to keep them from discharging in storage. You need to wait 1 to 2 minutes after removing the sticker before trying to use them, to give them time to charge up.
247457
I haven't seen these corrode at all and I use these in offshore GPS trackers on platforms and boats. They last around 6 months before changing. Great battery.
813484
Guy: I am sorry, but I am unable to answer your question because I had already discarded the packaging that might have provided this information. I do really like these Rayovac batteries for my hearing aids. By far they seem to last the longest for me and my use and the convenience of the quantity and price. I will be ordering again. Have a great week.
770411
No such thing as a mercury free cfl. You now have to make your own incandescents if you're worried about mercury in your house(and have the local power plant put mercury in the air instead).
2134215
Since they are rechargeable, I have no idea how many times you can charge them. However, we've never had them discharge fully but only use them a maximum of 3-4 hours at a time with no problems.
1173964
They are supposed to be lead-free. The manufacturer's website states that they conform to all FDA regulations and California Prop 65 standards.
762857
The advantage of mercury-free is that it's better for the enironment. However, in the case of Power One, their batteries that have mercury work great...long lasting; their mercury-free batteries are a disaster, dying in half the time of the ones with mercury. I've given up on PowerOne. Rayovac mercury-free batteries last much longer than PowerOne's.
1014617
Nowhere in the container does it say that they are rechargeable. Apparently they just disintegrate over time as they come in contact with ammonia.