Previous Next Contents

3. Replacing the Batteries

Opening the battery case is easiest if you have access to a rubber band approximately 1/4" to 3/8" in width.

3.1 Taking Battery Case Apart

Twist the battery case apart. This is easily done by holding the plastic cap of the battery holder in one hand, and wrapping a rubber band around the metal part of the battery case. Gripping the case with the rubber band to prevent slipping, twist the cap of the battery holder in one direction and the metal base in the other direction, just like twisting the top from a soda bottle. This will separate the small plastic locking tabs from their retainers in the metal case, and allow it to be opened. The case will open after some resistance.

3.2 Removing Batteries from Case

Take the batteries out of the metal case - one trick that works is to push them with a pencil from the opening on the bottom of the case. There is a small rim of plastic with three evenly spaced holes in it visible in the bottom of the battery case - DO NOT REMOVE THIS - IT IS PART OF THE BATTERY CASE ITSELF.

You should now see two batteries, and one small piece of metal which separates the batteries. Save this piece of metal which separates the batteries - it must go back in with the new batteries, in the same relative position it was in when you removed it (with the tension tabs facing the proper direction).

3.3 Installing New Batteries

Place a new Eveready Energizer 357 into the metal battery retainer, with the negative side of the battery inserted first (this is the smaller end of the battery). Place the small piece of metal in next (you did save this, didn't you?), with the tension tabs facing the open end of the battery case. The next battery will sit against this tension piece.

Insert the next battery, positioning it just like the first one - negative end facing toward the first battery, against the metal tensioner. Check to make sure the batteries are inserted all the way.

3.4 Closing the Case

Place the plastic cap over the open end of the battery case and snap it into place. This is easily done by placing the battery case on a table top, with the open end facing up. Place the plastic cap over the open end of the metal case, and press down firmly and evenly. The cap should lock with a "snap" onto the metal end of the battery case.

3.5 Checking

Check to make sure things are lined up evenly. The battery case should be intact, with no gaps along the edge of the seam.

The batteries should now be electrically checked by inserting them into your backup pump - insert a battery into the #3 compartment first, then insert a battery into the #2 compartment. All pump functions should work fine. If a battery alarm does occur, it is usually because the tensioner piece was inserted in the wrong direction, or because the polarity of the batteries is wrong. Open the battery case to make sure the tabs on the tension piece are facing the plastic cap on the battery case, and check to ensure the batteries are positioned properly (negative side facing away from the plastic end cap).

Previous Next Contents