CS700 Battery Eliminator Guide

Connect Systems CS700/CS701 Battery Eliminator Guide Guide

Intro: First of all, I am an amateur radio user, just like the rest of you. I have no affiliation with Connect Systems. These instructions were not put together under their guidance, or supervision.

This may void the warranty on your radio. Soldering irons and hot glue guns get hot, so be careful, don’t get burned. Electricity is involved, don’t ride the lightning.

This was not created for you all to critique my soldering skills, it is a guide to help you build a battery eliminator. If you don’t like the way mine looks, then by all means don’t use my guide. Also, I am not planning on producing units for sale, don’t ask. The total project took me about 30 minutes.

By following these instructions you agree to hold harmless the author from any damages or injury which may result.

Supplies I used:
Multimeter
Soldering Iron w/solder
Needle-nose pliers
Masking Tape
Baofeng UV5R Battery Eliminator ($7)
Empty Battery Case for CS700/701 ($10 + shipping)
Dremel tool
Hot Glue Gun w/high-temp hot glue
My pocket knife (for prying things open.)

Step 1:
Pry open the Baofeng Battery eliminator. It should look like this. Make sure it isn’t plugged in when you do this.

Step 2:
You will need to cut away the plastic at the base to retrieve the wires. Be careful not to cut the wires.

Step 3:
Open the CS700/701 empty battery case. I did this by lightly prying at the bottom of the case. It pulled open relatively easily. Don’t try this on a regular battery, those are held together by adhesive.

Step 4:
Identify the terminals inside. Note where I have marked positive and negative.

Step 5:
Move the internals from the Baofeng eliminator to the CS700/701 empty battery case. I held the guts in place with masking tape to make it easier for when I start soldering.

Step 6:
Use the soldering iron to remove the gold-colored clips at the end of the red and black wires.

Step 7:
Solder the red (positive) wire to the terminal denoted at positive. Solder the black (negative wire) to the terminal denoted as negative. Nothing gets attached to the middle terminal.

Step 8:
Verify that you did the previous steps correctly by using a multimeter. In this case, I took a photo of my unit plugged in to a 12V power source, and used the meter to verify it was receiving approximately 8-volts. As you can see the approximately voltage on a battery is also about 8 volts.

(yes, I realize about the wires on my multimeter.)

Step 9:
You will need to use a Dremel to remove some of the plastic at the base of the unit for the cord to exit from.

Step 10:
I used high-temp hot glue to hold wires and the circuit board to the plastic case.

Step 11:
Put the two halves together and fill the exit hold with high-temp hot glue. (Optional: Superglue the two halves of the case together. Step 12:

Step 12:
Enjoy.

Guide by: Chris Nielson – K0LTA


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