Gearbest        
Results 1 to 7 of 7

Thread: can an 10180 replace a stack of LR44s?

  1. #1
    *Flashaholic* Illum's Avatar
    Join Date
    Apr 2006
    Location
    Central Florida, USA
    Posts
    13,038

    Default can an 10180 replace a stack of LR44s?

    Will it be too wide or too long?

    Seems like from a voltage standpoint it will fit. I have a friend who is a cat owner. Being in an apartment/studio kinda home the poor cats primary exercise is prescribed using a red keychain laser. Long story short, buying LR44s was getting to be a pain, and wants rechargeable without needing to buy a longer laser to use 2AAAs. [I don't understand the mentality, I'm just the messenger]. I think it might fit, but I am not sure.

  2. #2
    Flashaholic* Timothybil's Avatar
    Join Date
    Nov 2007
    Location
    The great state of Iowa
    Posts
    2,735

    Default Re: can an 10180 replace a stack of LR44s?

    An LR44 is 11.6mm x 5.4mm, or a 11/540/12540, depending on how one interprets the diameter. Either way, three 10180 cells should fit, as long as they don't shift out of alignment. How many LR44s are used now? Keep in mind that an LR44 is 1.5v, as opposed to 3.7 for a 10180. So three 10180 cells would definitely be way too much voltage - you would need to figure out some sort of dummy cell to take up space.
    You don't NEED a parachute to skydive. You DO need a parachute to skydive twice.

  3. #3
    Flashaholic* snakebite's Avatar
    Join Date
    Mar 2001
    Location
    dayton oh
    Posts
    2,286

    Default Re: can an 10180 replace a stack of LR44s?

    1 10180= 3 lr44 in most devices that run them stacked.
    a cheap laser/flashlight may depend on the higher internal resistance of lr44 for current limiting.
    otherwise they work fine if you can adjust contacts in some devices.
    10180 is usually close enough.
    Quote Originally Posted by Timothybil View Post
    An LR44 is 11.6mm x 5.4mm, or a 11/540/12540, depending on how one interprets the diameter. Either way, three 10180 cells should fit, as long as they don't shift out of alignment. How many LR44s are used now? Keep in mind that an LR44 is 1.5v, as opposed to 3.7 for a 10180. So three 10180 cells would definitely be way too much voltage - you would need to figure out some sort of dummy cell to take up space.
    Last edited by snakebite; 08-10-2017 at 06:23 AM.

  4. #4

    Default Re: can an 10180 replace a stack of LR44s?

    I use 1 10180 instead of 3 lr44 in one of my keychain flashlights. Works great!

  5. #5

    Default Re: can an 10180 replace a stack of LR44s?

    Quote Originally Posted by Timothybil View Post
    An LR44 is 11.6mm x 5.4mm, or a 11/540/12540, depending on how one interprets the diameter. Either way, three 10180 cells should fit, as long as they don't shift out of alignment. How many LR44s are used now? Keep in mind that an LR44 is 1.5v, as opposed to 3.7 for a 10180. So three 10180 cells would definitely be way too much voltage - you would need to figure out some sort of dummy cell to take up space.
    Three LR44's would be 16.2mm long - pretty close to the 18mm length of a 10180.

    But for a casual user not used to managing lithium ion batteries, I'm not inclined to recommend an unprotected lithium-ion battery. Also, the point about the laser possibly depending on the poor current output of LR44's is potentially apt.

  6. #6
    *Flashaholic* Illum's Avatar
    Join Date
    Apr 2006
    Location
    Central Florida, USA
    Posts
    13,038

    Default Re: can an 10180 replace a stack of LR44s?

    Quote Originally Posted by Timothybil View Post
    AHow many LR44s are used now?
    several, and today I found out the LR44s have been bought in stores, one cell at a time.


    an end user with no experience in this sort of chemistry has me wary as well. I'm happy to know it will work but by the way it looks recommending the cells bought online seems the only real safeguard from an user error explosion
    Last edited by Illum; 08-13-2017 at 10:29 AM.

  7. #7
    Flashaholic* Timothybil's Avatar
    Join Date
    Nov 2007
    Location
    The great state of Iowa
    Posts
    2,735

    Default Re: can an 10180 replace a stack of LR44s?

    Quote Originally Posted by Illum View Post
    several, and today I found out the LR44s have been bought in stores, one cell at a time. an end user with no experience in this sort of chemistry has me wary as well. I'm happy to know it will work but by the way it looks recommending the cells bought online seems the only real safeguard from an user error explosion
    I have purchased LR44s for a electronic micrometer I have. I found that I can purchase six to ten in bulk on line for usually less than buying a single cell, even on line. For something this size and cost, the overhead of purchasing, warehousing, and shipping has a much greater impact on the final cost than the cost of the cell(s) them selves.
    You don't NEED a parachute to skydive. You DO need a parachute to skydive twice.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •