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Assembling LITHIUM BATTERIES - How to make a POWERPACK
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FNIRSI HS02 Smart Soldering Iron First Look
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SDG #340 FNIRSI HS-02A 100W USB Soldering Iron and FNB48P USB Power Monitor
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How to REACTIVATE a SULPHATED BATTERY
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HOMEMADE ENGINES for WIND GENERATOR | I show you different types
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