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Old 10-21-2014, 09:34 PM
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Default Power Supply

Chasing a power supply unit.

Come at ms, lads.
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Old 10-23-2014, 05:48 AM
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Do you want something proprietary or would you consider something modified for use?
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Old 10-23-2014, 08:43 PM
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Originally Posted by cplus
Do you want something proprietary or would you consider something modified for use?
Prefer proprietary. We ARE dealing with some fairly energy dense storage mediums....
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Old 10-23-2014, 09:57 PM
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I can make you an adapter that goes from your standard 3 pin plug, to your standard Lipo plugs? Charges in milliseconds.
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Old 10-24-2014, 01:29 AM
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Originally Posted by slashdad
Prefer proprietary. We ARE dealing with some fairly energy dense storage mediums....
The items I "modify" (and it's not much more than changing the output plugs) - are very simple, very stable ex server power supplies. I've done 6 now.

They still use a normal Aussie style plug on the end, I only mess with the "safe(r)" side - the low voltage part.

I'm also an mech/elec engineer - I was taught to play with way more dangerous stuff than this at university and design much bigger stuff that other people build at work

I can completely understand the trepidation though.
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Old 10-24-2014, 01:33 AM
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Originally Posted by kiwitim
I can make you an adapter that goes from your standard 3 pin plug, to your standard Lipo plugs? Charges in milliseconds.
I know you're kidding, but attempting charging a 8.4V item with 240V at relatively low amps (5-10A from a typical house hold GPO) won't be very successful.

Low volts (12-24) and high Amps (20-30A) is the fast way.

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Old 10-24-2014, 02:28 AM
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Originally Posted by cplus
The items I "modify" (and it's not much more than changing the output plugs) - are very simple, very stable ex server power supplies. I've done 6 now.

They still use a normal Aussie style plug on the end, I only mess with the "safe(r)" side - the low voltage part.

I'm also an mech/elec engineer - I was taught to play with way more dangerous stuff than this at university and design much bigger stuff that other people build at work

I can completely understand the trepidation though.
Drop me a PM, love to hear what you have...
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Old 10-24-2014, 02:39 AM
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I just used an old pc power supply and watched a video on you tube I know its not the safest thing in the world but I made it over a year ago and its still going strong without frying me in the process
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Old 10-26-2014, 04:33 AM
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I have a 24 amp Much More Power Supply. After $100 + post
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Old 10-26-2014, 04:55 AM
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Originally Posted by cplus
I know you're kidding, but attempting charging a 8.4V item with 240V at relatively low amps (5-10A from a typical house hold GPO) won't be very successful.

Low volts (12-24) and high Amps (20-30A) is the fast way.

I think you'll find the milliseconds of burst current from a standard GPO, across a simulated short circuit (DC Cells), will absolutely exceed 30A at around 200V depending on the cable. This will stop as soon as all of the smoke comes out of the battery. But yes I agree it won't be effective.

Yes I was joking... Server power supplies are a very common source for RC
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Old 10-26-2014, 05:05 AM
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Originally Posted by kiwitim
I think you'll find the milliseconds of burst current from a standard GPO, across a simulated short circuit (DC Cells), will absolutely exceed 30A at around 200V depending on the cable. This will stop as soon as all of the smoke comes out of the battery. But yes I agree it won't be effective.
Be an interesting test for a lipo - do you trust your circuit breakers
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Old 10-26-2014, 11:55 AM
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All done here, lads. Thanks to all for their inputs, current thoughts, electrifying discussions, alternating opinions and shocking revelations.
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