On Wed, 28 Sep 2011 06:23:29 -0700, Larry Jaques
wrote:

On 28 Sep 2011 04:33:56 GMT, "DoN. Nichols"
wrote:

On 2011-09-27, GeoLane at PTD dot NET GeoLane wrote:

The Harbor Freight autodarkening welding helmet with the solar cell
actually has two coin cell batteries inside, and when they get weak,
the autodarkening ceases to function Some times this happens in a
little over a year.



The name it has in the dropbox, BTW, is:

Harbor_Freight_Autodark_Welding_Helmet_repair.pdf



I didn't see how the cells were electrically oriented from the
article. Are they 2 separate 3v circuits, in serial for 6v, or in
parallel for a higher ampacity 3v circuit?

There are two separate circuits.

If the case were easier to open / could be opened and closed easily,
just replacing the coin cells would be the easiest fix, but since the
case wasn't meant to be opened, it's best to buy AAA battery holders
and run wires through the case to the contacts.

RWL