Never have to change battery in life ,The Electromind projects . 

Hello friends today’s video is on an electronic project, in which we have made some changes in a normal watch and made a long backup one, in which there is no need to change battery. The purpose of this channel is to increase electronic knowledge, and join us to get or learn videos.
If you want to buy any electronic parts for any projects then click this link.
li-ion battery
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battery holder
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ic LM317
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electronic projects kit
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