RC-Monster Forums  

Go Back   RC-Monster Forums > RC-Monster Area > General Discussion

Reply
 
Thread Tools Rate Thread Display Modes
Power Supply Needed
Old
  (#1)
Fast5sRevo88
Guest
 
Posts: n/a
Power Supply Needed - 09.21.2010, 02:36 PM

What power supply do i need to get the full potential of this charger http://www.rc-monster.com/proddetail...S615DV3&cat=19 ? Also what is the max C rating that the charger above can charge at?
   
Reply With Quote
Old
  (#2)
Duster_360
Guest
 
Posts: n/a
09.21.2010, 02:57 PM

In user setup on the Duo3, you can specify 1C thru 5C charge rates. Then when you set up a lipo to charge, you'll have whatever C rate you specified in user setup.

Duo3 takes a 14.5+v input to be able to run at the maximum 360watts (180 x 2). See the manual, bottom of the 1st page where it lists "DC Input required for max watts output" for their current chargers. You need about 450watts to run it at max capability, but the 14.5+v input required is not typical for an RC oriented power supply.
   
Reply With Quote
Old
  (#3)
Fast5sRevo88
Guest
 
Posts: n/a
09.21.2010, 03:15 PM

Thanks, thats very helpful.
   
Reply With Quote
Old
  (#4)
Fast5sRevo88
Guest
 
Posts: n/a
09.21.2010, 03:29 PM

Also if i wanted to do without a power supply and just use two 12v batteries in a series for a 24v pack, what kind of mA rating would i need to charge, say 6, 5000mah 5 or 6s lipos?
   
Reply With Quote
Old
  (#5)
rc4x4nut
RC-Monster Carbon Fiber
 
Offline
Posts: 279
Join Date: Jan 2005
09.22.2010, 12:39 AM

This is what I have sitting around. Its a nice if you need the flexibility

http://www.amainhobbies.com/product_...-138V-40A-520W
   
Reply With Quote
Old
  (#6)
radioman193
RC-Monster Carbon Fiber
 
radioman193's Avatar
 
Offline
Posts: 237
Join Date: Jul 2010
Location: Dansville NY
09.22.2010, 01:49 AM

Quote:
Originally Posted by Fast5sRevo88 View Post
Also if i wanted to do without a power supply and just use two 12v batteries in a series for a 24v pack, what kind of mA rating would i need to charge, say 6, 5000mah 5 or 6s lipos?
I hear a BOOM!!
and i see Smoke and Fire!!!!

without a "powersupply" or Charger how are you going to regulate the voltage PROPERLY to eatch cell to ballance them ?

you dont just dump power into the + and - on a lipo pack cause not all the cells will be the same
and if you have a weak cell say in the center of two the weaker cell will well you know .......
or if the two or one of the two outer cells are weaker well the same outcome.


Just Fix It !!!
I have been into electronics for 30+ years
and am a licensed Electronics Technician for over 26 years now.


Last edited by radioman193; 09.22.2010 at 02:02 AM.
  Send a message via AIM to radioman193  
Reply With Quote
Old
  (#7)
Fast5sRevo88
Guest
 
Posts: n/a
09.22.2010, 11:06 AM

Quote:
Originally Posted by radioman193 View Post
I hear a BOOM!!
and i see Smoke and Fire!!!!

without a "powersupply" or Charger how are you going to regulate the voltage PROPERLY to eatch cell to ballance them ?

you dont just dump power into the + and - on a lipo pack cause not all the cells will be the same
and if you have a weak cell say in the center of two the weaker cell will well you know .......
or if the two or one of the two outer cells are weaker well the same outcome.
Duh, i'm not stupid, i'm using the DC powered charger mentioned in the previous posts.
   
Reply With Quote
Old
  (#8)
Fast5sRevo88
Guest
 
Posts: n/a
09.22.2010, 11:14 AM

Quote:
Originally Posted by rc4x4nut View Post
This is what I have sitting around. Its a nice if you need the flexibility

http://www.amainhobbies.com/product_...-138V-40A-520W
Sweet, i looked at that before but didnt realize that could do 520w.
   
Reply With Quote
Old
  (#9)
Duster_360
Guest
 
Posts: n/a
09.22.2010, 11:23 AM

Its also only 13.8v.....Duo3 will not develop its full 360watts of power with 13.8v input source no matter how many watts.
   
Reply With Quote
Old
  (#10)
josh9mille
RC-Monster Aluminum
 
josh9mille's Avatar
 
Offline
Posts: 897
Join Date: Mar 2010
Location: Same town as "Brand P"
09.22.2010, 11:28 AM

Quote:
Originally Posted by radioman193 View Post
I hear a BOOM!!
and i see Smoke and Fire!!!!

without a "powersupply" or Charger how are you going to regulate the voltage PROPERLY to eatch cell to ballance them ?

you dont just dump power into the + and - on a lipo pack cause not all the cells will be the same
and if you have a weak cell say in the center of two the weaker cell will well you know .......
or if the two or one of the two outer cells are weaker well the same outcome.
WOW


Built Ford tough, with Chevy stuff.
   
Reply With Quote
Old
  (#11)
BrianG
RC-Monster Admin
 
BrianG's Avatar
 
Offline
Posts: 14,609
Join Date: Nov 2005
Location: Des Moines, IA
09.22.2010, 11:31 AM

Not sure on that particular model, but you may be able to tweak the output a bit for higher voltage. Given its weight, I assume it's a switching supply, so the methods to boost the output (if even possible) would be similar to any computer power supply.
  Send a message via Yahoo to BrianG Send a message via MSN to BrianG  
Reply With Quote
Old
  (#12)
radioman193
RC-Monster Carbon Fiber
 
radioman193's Avatar
 
Offline
Posts: 237
Join Date: Jul 2010
Location: Dansville NY
09.22.2010, 11:35 AM

Quote:
Originally Posted by Fast5sRevo88 View Post
Duh, i'm not stupid, i'm using the DC powered charger mentioned in the previous posts.
Ok cool



it just looked like you wanted to do a straight "powerdump" into a lipo lolol

with the wording :

Also if i wanted to do without a power supply and just use two 12v batteries in a series for a 24v pack, what kind of mA rating would i need to charge, say 6, 5000mah 5 or 6s lipos?



Its all cool just maken shure i have seen Alot of poeple doing dumb things with lipo's
thats why the post..

Good luck powering your Charger.

Enjoy.


Just Fix It !!!
I have been into electronics for 30+ years
and am a licensed Electronics Technician for over 26 years now.


Last edited by radioman193; 09.22.2010 at 11:39 AM.
  Send a message via AIM to radioman193  
Reply With Quote
Old
  (#13)
Fast5sRevo88
Guest
 
Posts: n/a
09.22.2010, 11:56 AM

Quote:
Originally Posted by Duster_360 View Post
Its also only 13.8v.....Duo3 will not develop its full 360watts of power with 13.8v input source no matter how many watts.
You sure?, I mean the ohm's law thingy says that 13.8v and 40amps is 552watts. I dont know what to do i can get the amp and watt ratings it calls for but not quite the voltage. Maybe i should do a 24v battery setup and just buy a charger for them, 2 12v batteries aren't exactly portable. I'm assuming that i would have to have some pretty high mah 12v's am i correct?
   
Reply With Quote
Old
  (#14)
ANGRY-ALIEN
RC-Monster Aluminum
 
ANGRY-ALIEN's Avatar
 
Offline
Posts: 809
Join Date: Jan 2008
Location: JAMAICA
09.22.2010, 01:25 PM

You can have a look at this thread from snellemin:

How to build a $20 47A power supply

Alien
   
Reply With Quote
Old
  (#15)
Bondonutz
Fat Kid Engineering
 
Bondonutz's Avatar
 
Offline
Posts: 3,634
Join Date: Jun 2009
Location: Hot as Hell West Central Coast Florida
09.22.2010, 01:35 PM

Heres something to consider ?

http://www.feathermerchantrc.com/

I bought the 42A model and I can charge 2-4000mah 6s w/my Hyperion Duo AND my Venom Pro chargeing a 5000mah 4s and doesn't miss a beat or get warm.

EDIT ^ Aliens option maybe more viable and def cheaper.


I retired from RC, now life is all about guns and long range shooting.

Last edited by Bondonutz; 09.22.2010 at 01:36 PM.
   
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump







Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vBulletin Skin developed by: vBStyles.com