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HelicopterMain Discussion › thinking of building a charging station
02-18-2014 08:15 PM  3 years agoPost 21
timmay

rrApprentice

Orange County CA

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Duratool case $19.99

Looking for a inexpensive case? Try http://www.mcmelectronics.com/brows...roof/0000001435

- Power Supply DPS-1200FB (75A 1800W)
- USB port
- ABS plastic textured sheet from tapplastics.com (pre-cut to your dimensions for free)
- Two Silenx iXtrema pro fans (very quiet)
- Two Thunder Power 820cd

I was going to install banana plugs but went with a cleaner look. Still trying to decide if I need a 12v output.

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02-18-2014 09:55 PM  3 years agoPost 22
unclejane

rrElite Veteran

santa fe, NM, USA

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Server PS are made to be run 24/7 365 at their rated power. Unless they are not getting proper cooling, or you are over working them, I can't see how so many of them have failed for you
Maybe it's just bad Karma, or perhaps just regular old brain damage lol...

I've had this same problem with my ham equipment, even. I somehow manage to smoke my PSU's even with fairly light duty operation. I use PB's for my amateur rigs nowadays too; never lost a rig but I've put down several PSU's, even good switching ones.

LS

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02-18-2014 09:59 PM  3 years agoPost 23
RyanW

rrKey Veteran

Edmond, Oklahoma

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Definitely sounds like your incoming line has some issues. I used to live in a town that had horrible voltage fluctuations. Light bulbs wouldn't last, appliances that were plugged in for long periods of time would give up the ghost prematurely, etc.

I purchased a very expensive line conditioner for all of my audio equipment to keep it 'safe'.

After we moved, all of that went away.

-Ryan
Mikado USA, Kontronik, Opti-Power, MKS Servos

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02-18-2014 10:46 PM  3 years agoPost 24
Ace Dude

rrProfessor

USA

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Mean Well literally makes hundreds of power supplies including some very high wattage (i.e., 2000W and above) industrial grade power supplies. I find it very hard to believe these units cannot perform at their rated specifications. Quite a few folks (including myself) are using the Mean Well RSP-1500-24 and I know of one charger vendor who also carries the Mean Well RSP-2000-48. I can't say I've ever heard of one of these power supplies failing. Very curious to know what you're doing to get these to fail.

  

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02-19-2014 12:23 AM  3 years agoPost 25
Retired2011

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Lee's Summit, MO

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Very curious to know what you're doing to get these to fail.
I have an idea what he's doing...

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02-19-2014 12:28 AM  3 years agoPost 26
Craigdieslemac

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Valdosta, Ga USA

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If anyone can explain to me how to solder bullet connectors to a power supply I'll love them forever.. For-Eva!

Aut viam inveniam aut faciam

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02-19-2014 12:29 AM  3 years agoPost 27
unclejane

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santa fe, NM, USA

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I just used it for general purpose charging. This last one was a Meawell SE-1000-24, which could do about 41 amps at full smoke. I think the highest load I ever put on it was a little over 30 amps when charging my 6S packs at the max power output of the charger (iCharger 3010B, does about 720W output maximum at 24V). So the input power was a little higher I guess, somewhere around 750W maybe a little more than that.

It only ever got a little warm most of the time until last week when it let the smoke out. So it lasted about a year?

But it rarely had to put out that much power more than about 40mins when charging a lot of 6S packs at once.

So I dunno, maybe 750W continuous-duty was too much for it. Took it for about a year and finally just burned up..

LS

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02-19-2014 12:42 AM  3 years agoPost 28
Retired2011

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Lee's Summit, MO

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If anyone can explain to me how to solder bullet connectors to a power supply I'll love them forever.. For-Eva!
What about soldering a short piece of wire (1/2" to the bullet then solder the wire to the PSU...or bolt a connector like I heard someone say?

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02-19-2014 12:43 AM  3 years agoPost 29
Retired2011

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Lee's Summit, MO

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Why can't you tin the outside of the bullet heavily then stick it to the tinned PSU blade?

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02-19-2014 12:51 AM  3 years agoPost 30
Craigdieslemac

rrKey Veteran

Valdosta, Ga USA

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I tried tinning he outside of the bullet.. The solder does not stick to it.. I think I'm going to need a torch to get the bullet hot enough

Aut viam inveniam aut faciam

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02-19-2014 01:04 AM  3 years agoPost 31
Retired2011

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Lee's Summit, MO

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Using flux?
Is the solder melting and running off of the bullet?
When I work with large connectors I use my big old 325 watt Weller gun to cook them quickly.

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02-19-2014 01:16 AM  3 years agoPost 32
Chad Douglas

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seattle, WA USA

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I went through a few phases.. to my mobile charging station integrated to the SUV… to having enough packs to fly all day with no charger with me.. to variations.

But what I used most:

A simple wooden folding TV tray. Velcro the amp and charger/balancer(s) leaving enough room for packs. Power strip and ext. fixed underneath.
Fold up and go when you're done.

Having tons of equipment, much of it stowed in Pelican cases, just got tiresome and eventually not as necessary as batteries accumulated.
It became much easier just to have 2 dozen packs ready to fly after a while.., rather than always charging on site. Although it's smart to have a setup to check cells, etc.

My favorite charging setup is this: (2 of each)

http://www.thunderpowerrc.com/Chargers_2/TP1430C

http://www.thunderpowerrc.com/Power-Supplies/TP1527PS

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02-19-2014 01:18 AM  3 years agoPost 33
Craigdieslemac

rrKey Veteran

Valdosta, Ga USA

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It's just not adhereing well.. I can pop it off easily. I am pretty sure that I am just not getting it hot enough.. I'll put a glob on the PSU and hear the bullet up with a torch.. Then put it in the solder glob.. Bet it sticks then

Aut viam inveniam aut faciam

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02-19-2014 01:47 AM  3 years agoPost 34
Ace Dude

rrProfessor

USA

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What size tip are you using? You need thermal mass. A good sized think tip is the key.

  

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02-19-2014 01:56 AM  3 years agoPost 35
Craigdieslemac

rrKey Veteran

Valdosta, Ga USA

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I'm gonna put my thick tip on tonight when I go home and try again with it.. I'll get these bullets on there

Aut viam inveniam aut faciam

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02-19-2014 02:55 AM  3 years agoPost 36
Ace Dude

rrProfessor

USA

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In the good old days we used hammerhead soldering tips to solder sub-C cells together. They worked well due to their size/thermal mass. Used the largest tip you can. I recently purchased a new portable soldering iron just for my field box. It's a Hakko FX-601 and one of the reasons I got is due to the large tips available for it.

Here's what the old hammerhead tips looked like. Not practical for soldering most connectors, but you get the idea about thermal mass.

  

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02-19-2014 03:16 AM  3 years agoPost 37
BradNewman

rrApprentice

Orange, Tx-USA

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Here is mine, not real expensive (relatively).....but works great!! I can hook up 2 parallel boards and charge all 12 of my 6s 5000mah packs in about 2hrs! Feel free to PM me with any questions.

Remember to keep everything balanced!

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02-19-2014 03:43 AM  3 years agoPost 38
cyclo

rrNovice

Canada

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I have been pretty happy with using Stanley FatMax toolboxes to house the PSU and chargers.

To power the iCharger 308Duo I am using a TDK Lambda 24V 1500W Industrial PSU I got off ebay for about 130 bucks.

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02-19-2014 05:29 AM  3 years agoPost 39
AWittleWabbit

rrElite Veteran

O.C., CA

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Great pics, ideas, and discussion guys. I'll probably make my power supplies and icharger mobile soon. They are perched on a small cabinet at the moment.

Heli-itis sufferer.

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02-19-2014 10:36 AM  3 years agoPost 40
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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I just used it for general purpose charging. This last one was a Meawell SE-1000-24, which could do about 41 amps at full smoke. I think the highest load I ever put on it was a little over 30 amps when charging my 6S packs at the max power output of the charger (iCharger 3010B, does about 720W output maximum at 24V). So the input power was a little higher I guess, somewhere around 750W maybe a little more than that.
I used that exact power supply for 2 years. I sold it because I wanted to try the server PS and I could get (4) of them plus a new charger for the same price. So I ended up with 2000w of charging power and the guy I sold it to still uses it…been about a year now..

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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