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Old 12-04-2011, 08:28 AM   #61
tshelby73
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Default Fused ground

I had a small conversation with tatortot and decided to got some more fuse holders to put on positive side since their is a small possibility of shorting to case. Better safe than sorry. Thinking of making some grommets with holes also for banana connectors to reduce something falling on them and shorting.
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Old 12-18-2011, 05:11 PM   #62
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Default moved fuses to positive side.




I updated and put fuses on positive leads for better protection. Just need to make some plastic or rubber covers for banana plugs. I have labeled 12 and 24v but not in pics.
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Old 01-05-2012, 04:34 PM   #63
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Here you go geekindenial. Or anyone else trying to find out the pinout for a Power Edge 2650. Check the pic and zoom in. I drew it too small. Connect the red pins and be sure to bend or break away the surrounding pins.
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Old 01-05-2012, 05:58 PM   #64
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Originally Posted by tshelby73 View Post
I had a small conversation with tatortot and decided to got some more fuse holders to put on positive side since their is a small possibility of shorting to case. Better safe than sorry. Thinking of making some grommets with holes also for banana connectors to reduce something falling on them and shorting.
Another approach is to start with a heavy duty plastic tool box that doesn't conduct electricity.
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Old 01-05-2012, 06:06 PM   #65
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Originally Posted by Slyster View Post
Most all chargers need a 12 or 24v power source. I use deep cycles at the field or a server power supply at home. Only a few chargers can plug in to an outlet and they are limited to 50W... compared to the 1000W chargers many are using today.
I'm really liking my new Meanwell Power Supply 1000W x 24V for about $220. http://www.progressiverc.com/mean-we...er-supply.html

I had a featherlite, but decided to go with a single larger unit rather than running a couple in series.

My Powerlab 8 V2 can charge 2 x 6S batteries at 20A each with this setup.

All in anticipation of some 65C batteries coming soon
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Old 01-05-2012, 06:44 PM   #66
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We have a bin of computers and components to be recycled at work. I can take whatever I need. Can I use a power supply from there to run a charger? What do I need to look for?

Thanks.
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Old 01-05-2012, 06:49 PM   #67
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Yes you can. Search on google for " ATX power supply for charging lipos " or " rc use" or "lab use". Stuff like that. There is tons of videos and sites.
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Old 01-06-2012, 04:35 AM   #68
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We have a bin of computers and components to be recycled at work. I can take whatever I need. Can I use a power supply from there to run a charger? What do I need to look for?

Thanks.
Server supplies are the hardiest

But you sure can use PC supplies too.

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Old 01-06-2012, 12:55 PM   #69
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From looking at our pictures, I would advise against using that speaker terminal for your charger connection. I don't think it will be able to carry 20-30A current through those connectors... Another tip would be to use a car audio power bus connection? Just trying to keep you safe here
Can you tell me what connectors are better to use? is there anything from hobbyking? I was looking at these, are they good to use?

http://www.hobbyking.com/hobbyking/s...irs_20pc_.html
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Old 01-07-2012, 09:40 PM   #70
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Mine is done :-)

I use 2 2650 PSU too, only difference is I floated the DC negative side of second (positive output) PSU. It was a really fun project.

Thanks a lot to Michael for the help along the way.

GiD
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Old 01-08-2012, 05:40 AM   #71
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Mine is done :-)

I use 2 2650 PSU too, only difference is I floated the DC negative side of second (positive output) PSU. It was a really fun project.

Thanks a lot to Michael for the help along the way.

GiD
Looks good. I am now doing the same and floating the neg on the pos output psu. I am told the others I made should be ok. I have used mine they other way for many months. But it makes more sense to float the negative on the positive psu.

Now get charging!
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Old 01-08-2012, 08:35 AM   #72
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I just converted a N750P-S0 to use with my charger, only 12V for now, it's plenty for me.

It was super easy too, the only thing is I have to start charging something real quick or else it shuts off, the charger itself does not draw enough to keep it on, and it will probably shut off after charging also, which means I won't get to see how much went back into the battery.

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Old 02-18-2012, 06:51 AM   #73
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I've been coming across shutdown problems with this power supply (2x Dell 2650, as shown in previous post). Sometimes when the charge is done and I stop the charging process, unplug battery, the PSUs just shut down. I wonder what the problem is, whether the PSU sees some kind of current surge protection or does it consider current draw too low? Does anyone have the same problem with server PSU?

Thanks,
GiD
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Old 02-25-2012, 06:16 PM   #74
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I've been coming across shutdown problems with this power supply (2x Dell 2650, as shown in previous post). Sometimes when the charge is done and I stop the charging process, unplug battery, the PSUs just shut down. I wonder what the problem is, whether the PSU sees some kind of current surge protection or does it consider current draw too low? Does anyone have the same problem with server PSU?

Thanks,
GiD
Found the problem. On Hyperion chargers, I must follow strict connection order from battery to charger:
- Connect charging plugs first, then balancing plugs
- Disconnect balancing plugs first, then charging plugs.

Shame didn't find this in my printed manual, but I did find it on Hyperion websites and many only shop sites.

Hope it helps in case someone come across the same issue as me.
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