Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 3 of 3

Thread: Battery terminal extensions

  1. #1
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    3,515
    Thanks
    362
    Thanked 6,546 Times in 2,156 Posts

    mklotz's Tools

    Battery terminal extensions

    We've been having a spate of power outages so I bought a few twelve volt SLA (Sealed Lead Acid) batteries to handle the unexpected power loss. Since these are the same voltage as automobile batteries, it's possible to take advantage of all the electrical gadgets that are sold to be used on cars...

    LED under the hood lights meant to run directly off the battery
    USB voltage converters that plug into the cigarette lighter to recharge phones, radios, Kindles, NIMh batteries for flashlights, etc.

    In addition, 12 V computer fans provide a nice breeze in the summer months.

    Every month I use a commercial battery charger/keeper to recharge the batteries. Since the charger is intended for automobile batteries it has the giant clips needed for automobile battery terminals. The SLAs have the much smaller F1...

    https://www.batterystuff.com/kb/arti...1-f2-tabs.html

    terminals which the giant charger clips cannot hold securely. If a giant clip slipped off during unattended charging, it could short the charger.

    To avert this I made two terminal extensions that allow the giant clips to attach securely to the F1 clips. A female F1 connector was soldered to a short length of heavy copper wire. The wire was forced into a hole in a 0.5" diameter aluminum slug (brass or copper would have been a better choice for the slug but I didn't have any). A groove turned in the slug prevents the charger clips from pulling off the slug.

    Battery terminal extensions-p1010573.jpg

    Battery terminal extensions-p1010574.jpg

    186 More Best Homemade Tools eBook
    ---
    Regards, Marv

    Experience is always far worse than pessimism

  2. The Following 9 Users Say Thank You to mklotz For This Useful Post:

    baja (Mar 7, 2024), DIYer (Mar 7, 2024), Improvised DIY (Mar 5, 2024), Jon (Mar 7, 2024), rebuilder1954 (Mar 6, 2024), rlm98253 (Mar 11, 2024), thevillageinn (Mar 10, 2024), Tule (Mar 11, 2024), WmRMeyers (Mar 8, 2024)

  3. #2
    Supporting Member
    Join Date
    Feb 2016
    Posts
    61
    Thanks
    147
    Thanked 35 Times in 22 Posts
    Good idea, Marv.

    2,000+ Tool Plans

  4. The Following User Says Thank You to rebuilder1954 For This Useful Post:

    WmRMeyers (Mar 8, 2024)

  5. #3
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,055
    Thanks
    791
    Thanked 1,880 Times in 1,677 Posts


    Thanks mklotz! We've added your Battery Terminal Extensions to our Electrical category,
    as well as to your builder page: mklotz's Homemade Tools. Your receipt:






    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

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

Bookmarks

Posting Permissions

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