Go Back  RCU Forums > Electric Aircraft Universe > Brushed/Brushless motors, speed controls, gear drives
Reload this Page >

6s lipos on Astro model 210 brushed speed controller.

Notices
Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

6s lipos on Astro model 210 brushed speed controller.

Old 05-12-2009, 02:08 AM
  #1  
Boomerang1
Thread Starter
 
Boomerang1's Avatar
 
Join Date: Jun 2005
Location: Sydney, AUSTRALIA
Posts: 2,940
Received 12 Likes on 6 Posts
Default 6s lipos on Astro model 210 brushed speed controller.

I have a 13 year old multi engined scale model & want to keep it flying.

The original nicads are now cactus & I want to fit lipos. 4 of the motors currently use 16 nicad cells through an Astro model 210 speed controller & the rated voltage on these is 19.2 volts (obviously much higher straight off the charger).

A 6s lipo is rated at 22.2 volts, again higher off the charger. The speed controller is rated at 25 volts, 45 amps.

Any experience or thoughts? I would rather not blow it up as brushed speed controllers in the larger sizes are becoming much less common. Thanks in advance - John.
Old 05-12-2009, 07:49 AM
  #2  
el_xero
My Feedback: (2)
 
Join Date: Sep 2005
Location: Castries, SAINT LUCIA
Posts: 513
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 6s lipos on Astro model 210 brushed speed controller.

wow thats some serious power! not to mention cost. id love to see how this thread develops.. if it were me id upgrade the motors to brushless if possible.. (expensive though) It would make your set up more efficient interms of flight times and you may not need as much battery power as you initially thought too. I hope someone else can shed some more light on this as it would take me way too many calculations Im not so good at it yet.
Old 05-15-2009, 02:06 AM
  #3  
Boomerang1
Thread Starter
 
Boomerang1's Avatar
 
Join Date: Jun 2005
Location: Sydney, AUSTRALIA
Posts: 2,940
Received 12 Likes on 6 Posts
Default RE: 6s lipos on Astro model 210 brushed speed controller.

Anyone? - John.
Old 05-20-2009, 10:27 AM
  #4  
sportygreg
Senior Member
My Feedback: (2)
 
sportygreg's Avatar
 
Join Date: Sep 2005
Location: Dunedin, FL
Posts: 442
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 6s lipos on Astro model 210 brushed speed controller.

You would need a speed control that has a cutoff for lipo batteries or get a lipo cutoff to prevent damage to the lipo cells.Why not just get a couple of 8 cell nimh packs ?
Old 05-29-2009, 03:48 AM
  #5  
Boomerang1
Thread Starter
 
Boomerang1's Avatar
 
Join Date: Jun 2005
Location: Sydney, AUSTRALIA
Posts: 2,940
Received 12 Likes on 6 Posts
Default RE: 6s lipos on Astro model 210 brushed speed controller.



Thanks Greg, Astroflight finally got back to me & stated the speed controllers could handle the slightly higher voltage.



As for the cut off voltage I plan to just time the flights VERY conservatively & land at about half of the battery's capacity.



This will still give me an easy 10 minutes flight duration with the bonus of only 1/2 an hour to recharge back to full. - John.

Attached Thumbnails Click image for larger version

Name:	Qo39387.jpg
Views:	53
Size:	160.5 KB
ID:	1208159  

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 Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.