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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Casio FX-300ES vs FX-300ES Plus: which one to prefer?
From: Greg Rudzinski
Date: 2016 Sep 7, 11:06 -0700
From: Greg Rudzinski
Date: 2016 Sep 7, 11:06 -0700
Just checked a Canon solar calculator with battery removed. Stepped into a dark closet and saw the display read low battery for a few seconds then go off. Turned on my LED head lantern and presto ! the calculator was functioning perfectly by LED light only without battery installed. If something causes the solar panel to stop working then the small lithium battery will still power the calculator for years.
Greg Rudzinski
From: Ronald van Riet
Date: 2016 Sep 7, 04:53 -0700I don't want to spoil any fun, but how long does a solar calculator last at night?
Ronald
