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Metal Detectors
Minelab
Minelab SD2200 tips, settings, questions
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<blockquote data-quote="AuMan" data-source="post: 430208" data-attributes="member: 2670"><p>Hi Brad,</p><p></p><p>Welcome to the forum!</p><p></p><p>From memory, the sd2200 won't turn on if the voltage is over 7.6v. You won't blow it up as it has a power input protection circuit.</p><p></p><p>So for a 7.4v lipo, you are going to need to reduce the voltage when it is fully charged. For the most part, you probably only want to run the voltage between 6~6.8v. Running higher than that can cause ground noise that you would not otherwise hear.</p><p>To reduce the voltage, you have 2 options, LDO linear regulator, or diodes in series.</p><p></p><p>It is best to stay away from switching regulators because if they are not set up properly they can cause the detector to be noisy and being new to detecting you won't know if/when it happens.</p><p></p><p>Cheers!</p></blockquote><p></p>
[QUOTE="AuMan, post: 430208, member: 2670"] Hi Brad, Welcome to the forum! From memory, the sd2200 won't turn on if the voltage is over 7.6v. You won't blow it up as it has a power input protection circuit. So for a 7.4v lipo, you are going to need to reduce the voltage when it is fully charged. For the most part, you probably only want to run the voltage between 6~6.8v. Running higher than that can cause ground noise that you would not otherwise hear. To reduce the voltage, you have 2 options, LDO linear regulator, or diodes in series. It is best to stay away from switching regulators because if they are not set up properly they can cause the detector to be noisy and being new to detecting you won't know if/when it happens. Cheers! [/QUOTE]
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Metal Detectors
Minelab
Minelab SD2200 tips, settings, questions
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