Wallet Cache for Hearing Aid Batteries

337

2

1

Posted

Introduction: Wallet Cache for Hearing Aid Batteries

Modern hearing aids are a true marvel of compact electronics and I find it surprising how long they function on the miniature zinc-air batteries. Not surprising, the batteries seem to have a "habit" of dying when I'm away from home, as often as not. That is why I made this "Wallet Cache" at the Techshop, San Jose,CA, www.teschshop.ws.
I used .090" acrylic form a local Home Depot window department and laser cut the holes to be a light press fit for my batteries. There's no magic to having six holes, it just seemed like a good number. The outline dimensions of the acrylic are the same as a credit card. 
I engraved the battery type on the cache, just for good measure.
Now, as long as I keep the  "Wallet Cache" replenished, I have fresh batteries at hand wherever I go.

Share

    Recommendations

    • Microcontroller Contest

      Microcontroller Contest
    • Spotless Contest

      Spotless Contest
    • Science of Cooking

      Science of Cooking
    user

    We have a be nice policy.
    Please be positive and constructive.

    Tips

    Questions

    Comments

    s

    e

    i

    r

    e

    t

    t

    a

    b

    d

    i

    a

    g

    n

    i

    r

    a

    e

    H

    h

    h

    h

    h

    h

    h

    h

    H

    h

    e

    r

    u

    t

    s

    i

    o

    m

    o

    t

    e

    v

    i

    t

    i

    s

    n

    e

    s

    y

    r

    e

    v

    e

    r

    a

    s

    e

    i

    r

    e

    t

    t

    a

    b

    d

    i

    a

    g

    n

    i

    r

    a

    e

    H