खराब मल्टीमीटर के बैट्री से Emergency Light 🦺 बनाए || how to make emergency light use 9v battery
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How INDUCTOR's work & How to make your own
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How to make 3.7v lithium ion battery charging madule || Charging Madule कैसे बनाए || TP 4056
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Why do MOBILE BATTERIES have THREE terminals? A simple Explanation.
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Emergency light का चार्जिंग सॉकेट टूट गया दो मिनट में ठीक करे || how to repair emergency light
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Multimeter Repair | Digital Multimeter Repair गलत रीडिंग दिखा रहा था 100% सही होगा ऐसे करो |
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How to Make Auto Cut Off Battery Charger For 12V/9V/6V (Easy-Way)
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Don't throw away Old Batteries!Genius Invention with Welding Machine that you won't Believe😱
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