Nice setup. What power supplies are you running?

That is my set up.
Very tidy a little MacGyver a lot of confidence and goes like this.

Pelikan 1450 case.
AutoCad designed Aluminum sheet.
2x NPS 700 Dell
2x LM35 to control fans speed
220v indicator lamp
220V 7A switch on-off-on for 12V-off-24V
Airplane's panel thermal fuse at 10A for the input
4x heavy duty banana receptacles
Ring connectors
Second switch for LED blue lights
USB HUB

MISC
6x holes at 6.5mm for the PSUs indicating LEDs
Custom stickers
Thick foam from scorpion motor to prevent button being
pressed when the case is closed and you press it from above.
When one PSU is used for 12V the air is sucked out.
When both are working at 24V one is pushing air inside and the other sucks.

Esprit Model Flight Team
Kasama Srimok 90N FBL
TDR Rigid 90

Hello, could you please tell me, if you did any special preparation to the PSU's? I mean, for the regular ATX PSU's needed to be modified. Can you please post some more pictures of the build, if you have any? I'm planning to build a PSU for this charger, because getting a decent one is a LOT :S

Nothing special really.
I just modified the pins with a triple jumper as usual in order to get it working and outputing 12V.

And finally kept one ground of the two PSUs.
(Just for the story I kept the ground of the PSU that works alone and gives the 12V option)

Finally I used an ON-OFF-ON switch which it is wired in the 240V and gives me the option to hane 12V-OFF-24V.

I can send you pics if you send an email.

The aluminum board was designed from my sister in autocad after my instructions and fitted pretty good.
The PSUs were stuck with in the case with double sided tape from 3M.

And I also used the LM35 on each PSU to get automatic fan speed adjustment accordingly the temperature.And not full speed that it is very noisy.

Esprit Model Flight Team
Kasama Srimok 90N FBL
TDR Rigid 90

Here is my tool box charger .icharger 406 duo 1800 watt power supply

How are the power supplies secured to the case?

Hey BisonFlyer sweet case. Quick question. How are the power supplies secured to the case with out drilling holes etc.

I used 3M tape.

Team Mikado USA -- Team Insane Canopy -- Team Scorpion -- Team Evo Power Batteries

Velcro works great!!

ROG

Retired Old Guy

Thanks guys

Also where did you get your plastic for the deck and the internal structure? I am going to be doing something very similar soon.

Plastic?

Hey guys what type and where do you guys get your plastic for making the charging deck and the internal support structure? Thanks

This post has encouraged me to build my own case. Here is what I used:
Pelican 1450 case
Icharger 308 duo
2 HP DPS-1200 power supplies

Synergy Field Rep Rail Blades Field Rep

Nice work.

But As I see in the most of the cases guys are not cutting the metal cases of the PSUs.
In my project I cut the metal cases so I could achieve better cooling.
And also used the 2 temp sensors to get outer environment temp and also the outgoing air temp of the case.

Esprit Model Flight Team
Kasama Srimok 90N FBL
TDR Rigid 90

Not sure if I need better cooling. This summer I was charging batteries pulling 54 amps in 90+ degree weather. No problems at all.

Yes the exhaust temp was warm, but it should be. I did not cut the cases as the internal fans use the case to pull air through them cooling the insides.

Synergy Field Rep Rail Blades Field Rep

Yes you are right ..no need.
But just I strip the fans and I use one fan to suck air in and one to pull out.
I use the single working to pull out when I get 12V and when I get 24V I use the second to suck in.

To sum up I believe that I avoid having an airflow stuck behind the grille.

Anyway No big differences just a little chit chat.

Esprit Model Flight Team
Kasama Srimok 90N FBL
TDR Rigid 90

Sorry I was not trying to take a tone with you. What you can not see is there are two 40mm PS fans pulling through the PS and one 60 mm computer fan pushing the air into the PS.

I will have to take a new pic for you as I saw this fan on a charging case at IRCHA and thought is was cool. It is a 80mm fan that you can program. So I took out the 60mm fan and added the 80mm fan. You can feel the air flow the exit port on the left. I will get a pic up soon.

Synergy Field Rep Rail Blades Field Rep

No I never had the impression of getting a tone.
Sorry if I gave that kind of reply.I speak English but it's not my native language.

Esprit Model Flight Team
Kasama Srimok 90N FBL
TDR Rigid 90

Completely off topic but does anyone know the specs on the tiny fans inside the DPS-1200Fbs?

I was thinking about adding a big ~92mm fan to my case to constantly push air through a pair of them but I figured it should be spec'd to at least equal the airflow spec for the two tiny fans.

~Drew

I believe they are 40mm. I figured the internal fan would I'll the air across where it was needed and my 80mm fan would push the fresh air to the units and blow over the out side of the cases.

Synergy Field Rep Rail Blades Field Rep

I was thinking that if I can push more air than the little fans move with a bigger fan then maybe those 40mm jet engine fans will never spin up. I also noticed that the PSUs ran warmer than I liked and I was concerned that maybe even at full speed they weren't moving enough air to stay cool when in a 95F environment.

~Drew