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Do-It-Yourself (DIY) Question & Answer Forum
Li-ion battery charger: Input, Output, volts and amps...what's it all mean! :)
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<blockquote data-quote="Richard-the-Ninth" data-source="post: 548063" data-attributes="member: 23472"><p><h4></h4><p>Witless wonder, when you change <strong>any</strong> power supply the output voltage and current must be the <strong>same</strong> on the new power supply as the old one* If it is a higher voltage it will cook what it is connected to, if it is a lower voltage it will not charge / operate what it is connected to. </p><p></p><p>Assuming you found one that has the same rating, but is "generic" you have to ask yourself "Do I want to connect this to my £1,000+ device and risk destroying it in seconds, or should I buy the right one and have no worries" There is the recent video by a well known YT person who opted for a generic charger and the result was he destroyed his expensive kit in seconds. (Pity his phone was not recording)</p><p></p><p>Also what Geoff1946 said is true, matched items also "talk" to each other, so they work together. Generic stuff, does not talk.</p><p></p><p></p><p>*The current is how much the device can deliver, it is also how much the device requires. Depending on which device you are looking at. So a power supply rated at (for example 5A) can easily have a device plugged in that requires 3A. BUT you can't/shouldn't plug in a device that requires 8A as it will "pull" the 8A it needs, but as the power supply is only 5A the power supply will soon burn out / catch fire.</p></blockquote><p></p>
[QUOTE="Richard-the-Ninth, post: 548063, member: 23472"] [HEADING=3][/HEADING] Witless wonder, when you change [B]any[/B] power supply the output voltage and current must be the [B]same[/B] on the new power supply as the old one* If it is a higher voltage it will cook what it is connected to, if it is a lower voltage it will not charge / operate what it is connected to. Assuming you found one that has the same rating, but is "generic" you have to ask yourself "Do I want to connect this to my £1,000+ device and risk destroying it in seconds, or should I buy the right one and have no worries" There is the recent video by a well known YT person who opted for a generic charger and the result was he destroyed his expensive kit in seconds. (Pity his phone was not recording) Also what Geoff1946 said is true, matched items also "talk" to each other, so they work together. Generic stuff, does not talk. *The current is how much the device can deliver, it is also how much the device requires. Depending on which device you are looking at. So a power supply rated at (for example 5A) can easily have a device plugged in that requires 3A. BUT you can't/shouldn't plug in a device that requires 8A as it will "pull" the 8A it needs, but as the power supply is only 5A the power supply will soon burn out / catch fire. [/QUOTE]
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Li-ion battery charger: Input, Output, volts and amps...what's it all mean! :)
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