14 Aug
2014
14 Aug
'14
1:56 a.m.
On Thu, 14 Aug 2014, Jochen Kunz wrote:
Am 13.08.14 02:51, schrieb David Griffith:
I don't know if the concern is warranted or not, but I don't want to leave
the old cell in there for fear of leakage or other troubles. The reason I
use epoxy is that I can build back up the area that is cut away. I have
very little use for cyanoacrylate glues. I find it too thin and brittle.
--
David Griffith
dgriffi at cs.csubak.edu
I first identify the end of the module containing
the battery. Then with
a dremel, make a slice equatorially to sever the electrical connection.
Then slice open the battery compartment at its midpoint. The battery
should easily pull out at this point. Connect a CR2032 cell holder and
epoxy into place.
I do it this way: Dig into the resin from the top until you get
to the
battery. This is the + pole of the battery. Carefully prepare the lead
that goes from the top in a 90 degree angle down to the chip. Cut the
lead at the battery. Solder a wire to it and a CR2032 holder to the
other end. Connect the - pole of the CR2032 holder to pin 12, thats GND.
This way you is less invasive and mechanicaly more stable.