Before we mount the LCD permanently, we need to put the battery holder into place or we'll have to take the LCD off again to install it. So let's attach the battery pack and solder it into placesolder that battery holder to BT1.

Tools Needed

• Soldering iron
• Philips-head screw driver
• Wire cutters

...

• 1 x 4AAA battery holder
• 2 x Screws
• 2 x Nuts

Instructions

1. Find the footprint for BT1; it's hard to miss.
   Image Added
2. Seat the battery

...

1. holder into place.
   Image Added
2. Poke a screw through one of the mounting holes in the battery holder and out to the other side.
   Image Added
   Image Added
3. Slide a nut around the screw and tighten it into place.
   Image Added
4. Finish the job by applying pressure to the nut while twisting a screwdriver on the other side.
   Image Added
   Image Added
5. Repeat steps 3-5 for the other screw hole.
6. Solder and trim the two battery holder leads.
   Image Added