Espritmodel.com Telemetry Radio
Reply
Thread Tools
Old Jan 14, 2009, 11:03 AM
JAM
MaxAmps CMO
JAM's Avatar
Nine Mile Falls, WA
Joined Jun 2004
4,402 Posts
We should have the 720i's next week.

Jason
JAM is offline Find More Posts by JAM
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 14, 2009, 12:34 PM
Registered User
USA, MI, Mt Pleasant
Joined Nov 2005
132 Posts
Just a reminder, this is an old thread and there is a new one started by NipponDave that is a continuation of this thread. You can find it here
Rob_D is offline Find More Posts by Rob_D
Reply With Quote
Old Jan 14, 2009, 07:14 PM
Aerial Images of Texas
tashley's Avatar
The Texas Gulf Coast where hurricanes come to play
Joined Aug 2003
1,960 Posts
Yes it is an old thread but the new thread that you mentioned is for the Duo 2.
tashley is offline Find More Posts by tashley
Reply With Quote
Old Jan 14, 2009, 07:17 PM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,548 Posts
HYPERION EOS NET, DUO, and DUO2 Chargers


http://www.rcgroups.com/forums/showt...7#post11034534
everydayflyer is offline Find More Posts by everydayflyer
Reply With Quote
Old Jan 14, 2009, 07:20 PM
Aerial Images of Texas
tashley's Avatar
The Texas Gulf Coast where hurricanes come to play
Joined Aug 2003
1,960 Posts
I stand corrected Sir Charles.
tashley is offline Find More Posts by tashley
Reply With Quote
Old Jan 22, 2009, 08:23 AM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,548 Posts
Raydee thanks for stsrting this great Thread , for updating the first post and for mentioning just how great this chargers handles Ni chemistry. My self and my son have Nicad cordless power tools packs which were going down hill fast. My son even had one which was unuseable when he acurided it 04-15-07 ( part of a used set he purchased). I have been using my DUO and new 720i Net to cycle these old batteries and they have made a remarkable come back. Non of my other chargers do nearly as well . They may not last but then again I have some 30 year old Ni cells which are still doing OK.

A few example.
My son's 18 V Roybi flashlight would only work for a few minutes after using the Roybi charger.He has two chargers and result the sme with both. Three cycles on the 720i and now the light stays full briteness for an hour and battery still had 300 mAh in it whenndischarged down to 0.08 per cell at 2 amps.

One of my 14.4 V Roybi packs would not charge on OEM charger at all. First cycle on 720i 100 mAh in and 80 out,second cycle 500 in and 320 out, third cycle 905 out.


Perhaps I should start a sideline business repairing (?) cordless power tool packs.


How does that line go , send me your tired ,weak and weary?
Charles
everydayflyer is offline Find More Posts by everydayflyer
Last edited by everydayflyer; Jan 22, 2009 at 08:33 AM.
Reply With Quote
Old Jan 22, 2009, 08:34 AM
Registered User
Rockledge, FL
Joined Jan 2007
117 Posts
Quote:
Originally Posted by everydayflyer
I have been using my DUO and new 720i Net to cycle these old batteries and they have made a remarkable come back. None of my other chargers do nearly as well . They may not last but then again I have some 30 year old Ni cells which are still doing OK.

One of my 14.4 V Roybi packs would not charge on OEM charger at all. First cycle on 720i 100 mAh in and 80 out,second cycle 500 in and 320 out, third cycle now at 700 mAh out and still at 14.5 volts (work in progress)..
Charles,

Do you have a description anywhere on how you do this? I have some old Dewalt Ni packs that either won't charge or only last a few seconds in the drills. I don't have the 720i, but I do have two 620i's.

Thanks,

Boib
VTX Aviator is offline Find More Posts by VTX Aviator
Reply With Quote
Old Jan 22, 2009, 09:06 AM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,548 Posts
I am using default 5 Mv peak,0.8V per cell cut off , Normal 4A charge , 2Amp. discharge with 5 min. dwell between charge and discharge.

Contacts to the pack is crude but works. 12 ga. super flex with heavy tinned ends, rubber band around contact area as tight as I can get it and leads inserted under it.

I need to come up with an plastic clamp with contacts and leads but the make shift setup is working fine for now.

I also need to take a pack or two that has been cycled and run some serious higher amp. discharges to simulated drill motor ,cut of saw etc. useage. I figure at the very least these packs will sever well with the flash lights as they have a low amp. requirement.

Charles
everydayflyer is offline Find More Posts by everydayflyer
Last edited by everydayflyer; Jan 22, 2009 at 01:48 PM.
Reply With Quote
Old Jan 22, 2009, 01:09 PM
Southern Pride
everydayflyer's Avatar
Haralson County GA. USA
Joined Oct 2004
34,548 Posts
Six cycle on my 14.4V Roybi and dsch capac. at 2A to 9.6V 1039 mAh.

Ran a 10A diischarge on my CBA II / CamLight Systems CC-400s setup and it delivered 951 mAh. Not bad for a battery that this morning was useless.


Charles
everydayflyer is offline Find More Posts by everydayflyer
Reply With Quote
Old Jan 24, 2009, 06:43 PM
Registered User
Cincinnati
Joined Jan 2009
49 Posts
Very nice I got some 18v ryobi batteries to try on mine. You got any pictures of how you are charging these? Also is there a way to charge 8aa batteries at a time with this thing for my transmitter?

Thanks,
John
JJay03 is offline Find More Posts by JJay03
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Hyperion EOS 5i charger any good? czechyour6 Batteries and Chargers 19 Mar 22, 2006 06:15 PM
Sold HYPERION EOS 5i CHARGER papamac Aircraft - Electric - Batteries & Chargers (FS/W) 0 Mar 05, 2006 09:54 PM
Got my Hyperion EOS 7i charger today. Like it a lot! Lynxman Batteries and Chargers 19 Jan 30, 2006 09:04 AM
Question Question about Hyperion EOS 7i charger Obake Batteries and Chargers 4 Jan 29, 2006 08:03 PM
Graupner Ultra duo charger fs Ben McCoy Aircraft - Electric - Airplanes (FS/W) 5 Aug 21, 2004 04:10 PM