How To Install Battery Cable Repair Splices

Posted by Lauren on Nov 11, 2016 10:45:28 AM

Quickly and conveniently repair cable harnesses with battery cable repair splices. Instead of replacing the entire harness, simply replace the damaged or corroded battery terminals. Plus, even with the repair splice, you'll still have an OEM style fit!

Remember, use a high temperature sleeving to protect against heat and abrasion when necessary.

img_2214 hero.jpg

IMPORTANT: Batteries produce explosive gases. It is critical to follow all safety instructions, and to always wear safety glasses when working near batteries.


Parts & Tools List

Battery Cable Repair Splices

Terminal Wrench

Cable Cutter

Cable Stripper

Crimping Tool

Hex Wrench (included in Del City's Battery Cable Repair Splices)


Step 1

Turn off all electrical loads on vehicle. Set parking brake. Place automatic transmissions in “PARK”(manual transmissions in “NEUTRAL”).

NOTE: Before proceeding, consult your owner’s manual or service specialist to determine if special procedures are required before disconnecting your battery. 



Step 2

Locate and disconnect ground cable from the battery. The ground cable is the cable wired to the engine block, vehicle frame or other metallic ground.



Step 3

Disconnect other cable from the battery. This cable is the one wired to the starter or solenoid.



Step 4

Remove old terminal that is to be replaced by cutting off the wires attached to it. Cut the wires as close as possible to the old terminal.



Step 5

Strip insulation with your cable stripper from remaining auxiliary lead 1/4" and remaining main cable(s) 3/4".



Step 6

Insert the stripped end of auxiliary lead into appropriate butt splice and crimp using a crimping tool Repeat if there are additional auxiliary leads.



Step 7

Insert stripped end of main cable into the battery cable repair splice , tighten locking hex screw with hex wrench and slide insulator sheath over splice connection. Repeat if there's an additional main cable.



Step 8

Reconnect battery cables to battery in reverse sequence of steps 2 and 3, connecting the battery cable wired to starter or solenoidfirst and the ground cable last. Properly position and tighten terminals on battery posts.

NOTE: The positive cable may have a fusible link auxiliary lead. If it is burned out, it must be replaced in addition to installing the new cable.



 Explore Battery Cable

Download "How To Install Battery Cable Repair Splices" Guide Now


Need to test your solenoid? Check out our post on How To Test A Solenoid. More questions? Give our Technical Support a call at 1.800.654.4757!

Topics: How To, Automotive, Specialty Vehicles, Truck/Trailer, Agricultural, Industrial, Battery Cables & Accessories


Subscribe to Blog Updates



12V Electrical Industry Expertise

Welcome to the Del City Blog! At Del City, we know how important it is to not just have your supplies, but also to have industry resources. Here you will find answers and information on:

  • Industry happenings
  • Technical tips
  • Component use & information
  • New Products at Del City 
  • Del City News

Recent Posts