Which battery for the MRG-8100B-1AJF

Thread: Which battery for the MRG-8100B-1AJF

Results 1 to 6 of 6
  1. #1
    Member HiggsBoson's Avatar
    Join Date
    Oct 2009
    Location
    UK
    Posts
    8,166

    Which battery for the MRG-8100B-1AJF

    Hi Guy's,
    Which battery fits in the MRG-8100B-1AJF?
    Is it an easily replaceable battery?
    Anyone done this, or does it have to go back to Casio service as it's rechargeable?
    Many thanks.

  2. #2
    Member Joakim Agren's Avatar
    Join Date
    Feb 2006
    Location
    Sweden
    Posts
    6,191

    Re: Which battery for the MRG-8100B-1AJF

    Quote Originally Posted by spikeyadrian View Post
    Hi Guy's,
    Which battery fits in the MRG-8100B-1AJF?
    Is it an easily replaceable battery?
    Anyone done this, or does it have to go back to Casio service as it's rechargeable?
    Many thanks.
    Put it on the wrist and use it in the sun or just place the watch on a windows sill so that it can soak up some energy from the sun light. It will re charge to full again. Might take several days before it reaches full charge if it was completely empty but it will get there eventually.

    Or are you having issues with the watch? Does it not charge properly when doing this?
    The Water Resistance Myth VS Reality article:https://forums.watchuseek.com/showthread.php?t=159142


  3. #3
    Member HiggsBoson's Avatar
    Join Date
    Oct 2009
    Location
    UK
    Posts
    8,166

    Re: Which battery for the MRG-8100B-1AJF

    I want to know how easy it is to replace the battery, what battery I need
    and once I know that, I can get a price for the battery.
    I prefer to do battery changes myself, assuming I can get the correct battery OK.

  4. Remove Advertisements
    WatchUSeek.com
    Advertisements
     

  5. #4
    Moderator G-Shock Forum
    Join Date
    Mar 2008
    Location
    Germany
    Posts
    5,876

    Re: Which battery for the MRG-8100B-1AJF

    Do you have the module number of your watch?
    There is a last chapter in the manual about the tchnical data.
    Usually the battery size is mentioned there.

    In general you will find a button cell like CTL 1616 or so.
    The exchange is done like on the non-rechargeables.

    But your will have plenty of time before this battery will fail (exept you have a lemon).

    Quote Originally Posted by spikeyadrian View Post
    I want to know how easy it is to replace the battery, what battery I need
    and once I know that, I can get a price for the battery.
    I prefer to do battery changes myself, assuming I can get the correct battery OK.

  6. #5
    Member Joakim Agren's Avatar
    Join Date
    Feb 2006
    Location
    Sweden
    Posts
    6,191

    Re: Which battery for the MRG-8100B-1AJF

    Quote Originally Posted by spikeyadrian View Post
    I want to know how easy it is to replace the battery, what battery I need
    and once I know that, I can get a price for the battery.
    I prefer to do battery changes myself, assuming I can get the correct battery OK.
    The MRG-8100 uses the Panasonic CTL920 battery: Panasonic CTL920 CTL920F Battery Casio G Shock Edifice Wave Ceptor Tough Solar | eBay

    But really you should have years and years of good operation from the current battery no need to replace it yet!

    I am not familiar with the internals of the MRG-8100 series so do not know how easy it is to replace. But the back should come off easily with a proper size screwdriver.
    The Water Resistance Myth VS Reality article:https://forums.watchuseek.com/showthread.php?t=159142


  7. #6
    Member HiggsBoson's Avatar
    Join Date
    Oct 2009
    Location
    UK
    Posts
    8,166

    Re: Which battery for the MRG-8100B-1AJF

    Quote Originally Posted by Joakim Agren View Post
    The MRG-8100 uses the Panasonic CTL920 battery: Panasonic CTL920 CTL920F Battery Casio G Shock Edifice Wave Ceptor Tough Solar | eBay

    But really you should have years and years of good operation from the current battery no need to replace it yet!

    I am not familiar with the internals of the MRG-8100 series so do not know how easy it is to replace. But the back should come off easily with a proper size screwdriver.

    Thanks for helping.
    I did some further research and apparently the CTL920F is a new improved version of the battery.
    Now, how exactly it's improved, is a bit of a mystery.
    Last edited by HiggsBoson; July 28th, 2015 at 11:36.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. FS Casio MRG 8100B-1AJF
      By drdoom in forum Watches - Private sellers and Sponsors
      Replies: 1
      Last Post: November 23rd, 2013, 03:34
    2. Replies: 16
      Last Post: October 15th, 2010, 22:16
    3. Mrg-8100b-1ajf
      By HiggsBoson in forum Casio G-Shock
      Replies: 6
      Last Post: November 15th, 2009, 10:02
    4. MRG-8100B-1AJF and MTG-1500-1AJF official
      By Sibe in forum Casio G-Shock
      Replies: 14
      Last Post: July 28th, 2009, 19:09
    5. MRG-8100B-1AJF pics
      By GShoc-ken in forum Casio G-Shock
      Replies: 18
      Last Post: May 12th, 2009, 08:52

    Posting Permissions

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