Solar Powered Welding Helmets


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Timbergetter

Regular Member

Joined: 08/10/2018
Location: Australia
Posts: 55
Posted: 01:44pm 11 May 2020      

As many people here would know the Lincoln Electric company makes quality welding equipment including auto-darkening welding helmets.  My 700G helmet is promoted as being solar powered.  All electronics, solar panel and sensors are sealed inside a cassette that is intended to be not serviceable by the user.  Of course I am trying to service the failed cassette.  What I found inside are two coin batteries coded CR2342 (one is dead).  I have not seen this particular battery before but it looks much like the ubiquitous lithium CR2032.  Before opening up the cassette I had expected to find a rechargeable battery or two, but it appears that the included batteries are not rechargeable.  I speculate that the power needs of the equipment is met with instantaneous collected solar generation and when that is insufficient, make-up power is provided by the Lithium cells.  Does anyone have experience with these welding helmets that could confirm what I suspect is happening is in fact the case?