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Battery Monitor with Buzzer

 

This Battery Monitor Buzzer starts beeping as the battery voltage drops down to less than 50% and then with increasing persistence as the battery voltage drops down even further - it is hard to ignore. Lead Acid can last many years as long as they are not discharged below 50% too often.

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Solar Powered Torch Kit

 

This is a Solar Powered Torch supplied in kit form. It’s aimed at anyone interested in electronics or engineering and is designed to give a practical insight into building a prototype. Anyone building this should have previous experience of soldering and using a drill.

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