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Thread: Batteries extending life

  1. Default Batteries extending life

    Any tricks to keep batteries lasting longer? Any brands recommened? Thanks

  2. #2
    Join Date
    Dec 2009
    Location
    Wales, UK
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    Quote Originally Posted by xxnonamexx View Post
    Any tricks to keep batteries lasting longer? Any brands recommened? Thanks


    Keep them in a cool non condensing environment and make sure they opened out of the aid at night even if they still sit in the battery tray.

    That is all.

    We tend to stick with Ray-o-vac, but I'm sure everybody will have their own favourites.
    Link to my entry in the Hidden Content section.
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  3. #3

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    Keep the sticker on the battery until you actually need to use the aid with a new battery in, because that starts the chemical reaction inside the battery and it begins losing power--rather rapidly in the case of the little guys. (Especially don't remove all the stickers when you first buy the batteries, but you can even squeeze a few extra days out of a multipack of batteries by loading fresh batteries in the morning and pulling off the stickers then, rather than doing it when you put the aids "to bed" for the night.) Once that sticker's off, putting the sticker back on won't slow the decline, but do open the door to turn the aids off when you're not using them so the batteries decline at a somewhat slower rate.
    2013 Audiogram
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    Speech disc:
    L: 100% at 60 dB
    R: 100% at 60 dB

  4. #4
    Join Date
    Aug 2010
    Location
    Houston, TX
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    I haven't done any testing of my new theory yet, but based on the problems I had with the HAs dying when sweat got on the batteries and plugged the vent holes iin the battery, I think that covering the battery backside WILL extend the batteyr life by shutting off the air to the "Zinc-Air) battery.

    Testing to follow as soon as I get a "Normal" life figured for my new Ambra HAs.

    TerryB
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  5. #5

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    Well, yeah, Terry, give it a shot. I did, too, and found it not helpful, and the explanation was that once the air gets inside the battery, the chemical reaction can't be totally stopped again by covering the vents. But see if you can squeeze a few more hours out of 'em, and more power to you!
    2013 Audiogram
    Hz250.....0500...1000...1500..2000....3000....40 00...6000....8000
    L...20.......15........30........40........40..... ..45.......40.......55........65
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    Speech disc:
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  6. #6

    Question

    I have been maintaining a little "log" on how long (in days) my batteries are lasting. You can see my equipment in the signature below.

    My HA's both take #312 batteries and I was given Starkey batteries with the new aids and I purchased a pack of Duracell 312's while I was at the pharmacy waiting for a script.

    So far, the Starkey batteries are consistently lasting between 12 and 13 days and the one run I did of Duracell lasted only ten days. I then used Starkeys again with a run of 12 days and am now back to Duracell just to compare.

    I suspect the Starkeys are going to "win" every time at the rate this is going, and they are a LOT less expensive than the Duracells!

    An average "day" for me starts at around 5-6 am and the aids come out around 4-6 pm, so I may not be using them as many hours as a lot of people. I do sleep long hours due to a condition which tires me out.
    250 500 750..1k..1.5k..2k..3k..4k..5k..6k
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    R.5....5....10....10...15...30..75..75..60..50
    SRT=15 15; Audiometry 92% 80%
    10/22/10 - First HA's, excellent results with (L&R) Oticon Hit Pro (BTE), RITE with Standard Speakers & 10mm Open Domes
    <*)))><

  7. #7

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    Quote Originally Posted by hamjor View Post
    Once that sticker's off, putting the sticker back on won't slow the decline, but do open the door to turn the aids off when you're not using them so the batteries decline at a somewhat slower rate.
    Not true! I have an instrument I use only when doing sports, it has a size 13 cell that lasts 2 weeks of continuous use (well, 14 days x 16hrs/day). I put a piece of tape over the battery vents when I put it away and only need to replace the battery after many months. This makes sense; as the oxygen is consumed is the sealed cell, the reaction that produces the electricity will stop. The only question is how much oxygen is left in the cell when you reseal it that needs to be consumed before it stops discharging (i.e. this might not work for overnight sealing as there may be enough oxygen in the sealed cell for it to run overnight).

    Someone here posted actual measurements of batteries by brand even with several datecodes, try doing a search. The bottom line is that the brands tend to not be important.

    xxx..250..500..1K...2K...3K...4K...8K
    Lft..65...70...70...75...95...115..NR <----Pre Op
    Lft..25...25...25...25...55....80..95 <----Post Op Hidden Content
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  8. #8

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    Great! There's hope yet, Terry!

    It didn't work for me with my gear which operates on a far shorter battery lifespan cycle (3 or 4 days), but if it helps your situation, tape 'em up!
    2013 Audiogram
    Hz250.....0500...1000...1500..2000....3000....40 00...6000....8000
    L...20.......15........30........40........40..... ..45.......40.......55........65
    R...15.......20........30........40........40..... ..30.......55.......55........65

    Speech disc:
    L: 100% at 60 dB
    R: 100% at 60 dB

  9. #9
    Join Date
    Aug 2010
    Location
    Houston, TX
    Posts
    281

    Default

    When I got the Audeo Smart ixs, they ran for 6 days on the first batts.
    These Ambras have gone three days until now.

    Let's say they last 6 days, that's 96 hours operation and 48 hours standby (compartment open)

    I'll bet that the margin of increase is very small because the battery is not producing power when it is starved for air, but neither is it being asked to supply any (other than self-discharge) when the compartment is open.

    So: Yes the stoppage of air stops battery function, but taping will not gain much over switched off load. Covering the vents will not make much difference.

    A little light came on and I saw the disconnect between the operation of the battery and the usage time on the battery.

    TerryB
    Last edited by TerryB; 01-01-2011 at 06:43 PM. Reason: Math error fixed
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  10. #10

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    Quote Originally Posted by zafdor View Post
    Not true [what you said about not getting more life out of zinc air batteries by covering the ports]! I have an instrument I use only when doing sports, it has a size 13 cell that lasts 2 weeks of continuous use (well, 14 days x 16hrs/day). I put a piece of tape over the battery vents when I put it away and only need to replace the battery after many months. This makes sense; as the oxygen is consumed is the sealed cell, the reaction that produces the electricity will stop. The only question is how much oxygen is left in the cell when you reseal it that needs to be consumed before it stops discharging (i.e. this might not work for overnight sealing as there may be enough oxygen in the sealed cell for it to run overnight).
    I happened to be on the Ray-O-Vac site now for a different reason and saw that in their Hearing Aid FAQ (select Question #2 after clicking this link)
    http://www.rayovac.com/en/Products/Hearing%20Aid/FAQ.aspx
    Ray-O-Vac says that once the tab is pulled, sealing the holes again does not slow battery depletion. Of course you could argue that Ray-O-Vac may not be the most objective adviser on this point.

    Hey, if it works for you, keep on keepin' on, or sealin' on, or whatever. I suspect you're right that that there may be enough oxygen to keep the battery supplied with air in the overnight situation where I'm not using a resealed battery, whereas if you seal them up for days at a time, it may have a more noticeable effect.

    Other things I learned watching the video at http://www.rayovac.com/en/Products/Hearing%20Aid :

    Battery life can be a bit shorter in one aid in one ear, if your hearing loss is worse in one ear compared to your other ear. Things that can shorten battery life: setting the gain higher, using the aid in noisy environments such as restaurants or concerts, heat (this would include leaving a spare pair of batteries up against your body), cold (storing batteries in the refrigerator) humidity (either high or low), leaving the battery inside the aid when you put the aid in a Store 'n' Dry type device--they recommend not just opening the battery compartment (obviously) to stop battery drain but also not putting the batteries in the dryer device, because dehumidifying your batteries or using them in dry arctic or desert environments can drain batteries faster just as high humidity can.
    Last edited by hamjor; 01-14-2011 at 01:45 PM.
    2013 Audiogram
    Hz250.....0500...1000...1500..2000....3000....40 00...6000....8000
    L...20.......15........30........40........40..... ..45.......40.......55........65
    R...15.......20........30........40........40..... ..30.......55.......55........65

    Speech disc:
    L: 100% at 60 dB
    R: 100% at 60 dB

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