Introduction: DIY Invisible Fence Battery
Invisible Fence pet containment systems require a new battery in the dog's collar every 3 months. Invisible Fence dealers sell battery packs for around $15. This expensive battery is a plastic case around a common CR1/3 lithium cell, readily available from any hardware or drugstore for less than $5.00. Here is how to "renew" your battery in about 1 minute!
Step 1: Prepare Tools and Supplies.
You will need:
- A 3V lithium cell known as CR1/3N or DL1/3N
- A spent Invisible Fence battery module
- A razor blade, a sharp knife or a very small shovel
- Optionally, something to grasp the battery with to avoid cutting off your fingers.
Step 2: Grasp the Battery
Hold the battery sideways and grasp firmly
Step 3: Pry Off the Cover
With a very sharp knife, separate the cover ring from the battery housing.
Step 4: Separate the Cover
Gently work around the battery housing until the cover falls off. Be careful with the metal contacts! Note the orientation of the cell - the new cell will go in just like this.
Step 5: Pull Out the Battery Assembly
Gently pull out the cell by the metal contacts.
Step 6: Separate the Battery
Remove the cell from the metal clip. Discard the cell in the most environmentally-friendly way available.
Step 7: Insert New Cell
Put the metal clip around the new cell. Make sure the positive side of the battery only (the metal can) is in contact with the metal clip. Gently insert into the plastic housing, aligning the metal clip with the grooves on the inside of the housing.
Step 8: Check Battery and Clip Positioning
Make sure the cell is all the way in and is oriented correctly.
Step 9: Replace Plastic Cover
It will snap into position between the 2 metal contacts.
You are done!
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