Ada Fruit GPS Ultimate Breakout Board for PineA64

[MarkHaysHarris777]

   

Here is a pic of the VBAT installed with the rest of my PineA64 guts. 

... the battery box is a AAAx2 with a slide switch. Positive 3v+  goes to VBAT and the negative lead of the battery box goes to ground.  I have soldered the gps ground lead (black) to the VBAT ground lead (brown) because the gps breakout only has one ground pin. 

The VBAT is absolutely necessary for real-life practical use of this gps unit... otherwise boot-up and acquisition of fix can take anywhere from 15 minutes to a couple of hours !...  The VBAT holds the Real Time Clock, as well as satellite info for the next bootup... subsequent bootups will take considerably shorter and shorter periods of time as the unit learns;  turn the battery off, and you have to start over !