how long do they last before needing a new one?
1441900
2-3 months no problem. Saying that, I haven't worn this last set as they are tighter than previous ones.
1441901
I did not use mine too long...I have narrow feet, but it was too tight and eventually hurt. I had to quit wearing it. A great pair of custom made orthodics along with daily stretching of my calf muscles helped a lot.
1963106
Our first one lasted just a bit over a year. The free replacement they sent us has lasted longer, so far.
1414289
I read somewhere that these are suppose to last for up to a year. Just make sure you keep them stored somewhere cool.
96286
I'm not entirely certain how long one would last, because I've never had reason to give it heavy use...I'm sorry I couldn't be of more assistance with your question.
1589036
I have had it for almost a year and have not replaced it yet....if you keep it clean it lasts a long time depending upon how much its used.
2239246
Supposedly it lasts for a year, but good luck getting them to replace it. These things tend to die, and they only replace it on a very limited basis.
1141429
A LONG time. It was years before I had to replace mine, but I don't use it every day. Maybe a couple times a week is all.
658698
It depends on when it was manufactured. Buy it new and you'll be fine. Buy it used and you'll have to check. Typically they're good for 3-5 years from purchase.
2112534
It depends on how much you use it. Mine lasted a lot longer than 2 years. But I used it even after they become somewhat worn. The replacements were very easy to install and work great.
372033
They last about a year. I have been buying them for about five years and Amazon has the best prices. I think you will be happy with them. Hope this helped.
1439395
Mine have lasted for over 2 years and still work. After they get older than that they do not last as long and get hard in the package. I always have some left year to year because I cannot always find them when I need them.
540335
They're good for about three years. They only last about a week so that's plenty of time.
1694694
Sorry to say I don't know because I've never had to replace mine. 5 months later & mine still works like new.
595937
I have had them last 5 years with just moderate use per day and up to 3 years with heavy use recharging twice daily..I also do rejuvenate them after that time to get an extra year out of them before I buy new
718724
Call the company when in doubt, most are 1 year. We had one for many years with no problems, that is why I bought another one.
1294267
good question... I guess you just buy another... they have a 25,000 hr life... mine are only on part of the time, even at 8 hrs a day that should be 8.5 yrs or so. $12 per yr not bad
1001735
The battery can't be replaced by you. It needs to be sent in. As for how long they will last before replacement, i don't know. A long time probably. I've only owned one for a few months so i can't be the judge on that. But my friend has had his for a few years and he uses it a lot. His is still working fine on the original battery.