Details about cell. How to change it
How to change cell in this calculator
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Kalpana Boradhara, Do you mean the battery, as in how to replace the battery?
Post some good quality and up close pictures (with good lighting) of the front and the back of the device. Adding images to existing questions.
crwdns2934271:0crwdnd2934271:0 Geir Ove Andersen crwdne2934271:0
Are you asking how to replace the solar cell?
crwdns2934271:0crwdnd2934271:0 F Dryer crwdne2934271:0