Mar 27, 2012, 06:10 PM Southern Pride Haralson County GA. USA Joined Oct 2004 34,852 Posts Some how you put my name on Marks quote/snip http://www.rcgroups.com/forums/showp...ostcount=12133
Mar 27, 2012, 06:14 PM
Mixmasta belongum jeezus kraes
Australia, New South Wales, Sydney
Joined Jan 2011
2,870 Posts
Quote:
 Originally Posted by everydayflyer Some how you put my name on Marks quote/snip http://www.rcgroups.com/forums/showp...ostcount=12133
Sorry. Fixed. I control-Ved the wrong quote tag.
 Mar 27, 2012, 11:37 PM Just fly Australia, VIC, Glen Waverley Joined Jan 2011 2,103 Posts I have a quick question about the 206B and max charge rate. It states the Maximum charge power capacity is 300W with an input voltage of 18V from PS. What would its max charge power capacity be if the PS was only a 13.8v 23A? Is there a formula to work this out?
 Mar 28, 2012, 12:07 AM Registered User Melbourne Joined Aug 2010 449 Posts (Input volts) x (21 amps max) x (.9 efficiency) 13.8 x 21 x .9 = 261 watts Cheers
Mar 28, 2012, 12:11 AM
Registered User
Son, Norway
Joined Sep 2004
3,735 Posts
Quote:
 Originally Posted by evltoy I have a quick question about the 206B and max charge rate. It states the Maximum charge power capacity is 300W with an input voltage of 18V from PS. What would its max charge power capacity be if the PS was only a 13.8v 23A? Is there a formula to work this out?
Yes, there is also a nice graph in the manual showing max power as a function of input voltage. Basically it's the max input current that limits max power. If max input current is, lets say 20A, according to the specs, max input power for 13.8V will be 276W (13.8V * 20A), and max charge power will be ~90% of this. As input voltage is increased, these values will increase.

Fred
 Mar 28, 2012, 12:21 AM Just fly Australia, VIC, Glen Waverley Joined Jan 2011 2,103 Posts thanks a heap guys. I'm tossing up if I buy 206B or just another 106B+
 Mar 29, 2012, 08:17 AM Registered User Joined Dec 2009 126 Posts What makes the 106B+ so much better than say the Turnigy A-6-10 200W Balance charger & discharger found here: http://www.hobbyking.com/hobbyking/s...ischarger.html
 Mar 29, 2012, 08:23 AM Registered User Melbourne Joined Aug 2010 449 Posts Heaps more functions and charging options Have a read of both manuals Cheers
 Mar 29, 2012, 09:42 AM Registered User Joined Dec 2009 126 Posts What is so good about that extra functinality though? My goals are to be able to ballance, charge, and discharge.
Mar 29, 2012, 10:19 AM
Southern Pride
Haralson County GA. USA
Joined Oct 2004
34,852 Posts
Quote:
 Originally Posted by qwerty11 What makes the 106B+ so much better than say the Turnigy A-6-10 200W Balance charger & discharger found here: http://www.hobbyking.com/hobbyking/s...ischarger.html

What makes steak better than hamburger?

I realize that there are tens of thousands using HK brand chargers and are happy with them. I have always believe in the old saying, Buy cheap and buy twice.

I use some items from HK and know full well that the quality is hit and mis but I will not use questionable quality lax QC chargers to charge LiPoly batteries, IMO it is just false economy and dangerious to do so.

Charles
Mar 29, 2012, 11:12 AM
Registered User
USA, TX, Grapevine
Joined Dec 2008
14,873 Posts
Quote:
 Originally Posted by qwerty11 What makes the 106B+ so much better than say the Turnigy A-6-10 200W Balance charger & discharger found here: http://www.hobbyking.com/hobbyking/s...ischarger.html
It sort of depends on one's personal preferences a lot.
The cheap chargers may work fine, but there is no support, no upgrades and little to no help with them.

But the iCharger has support from the company, and they offer firmware updates from time to time for those who need them. You can even mail them back to the factory for repair too. Albeit it could be expensive to ship them back.

But the main feature I like to use is the external resistor load discharge function. I can hook up a 3.2 ohm or 5 ohm high power resistor to the charger to use to discharge my big packs with. This is to bring them back down to their storage charge level. I don't think anyone else has that feature on their Lipo chargers.
The internal discharge function is weak on most all of the brands of chargers as the chargers can only drain at about a 1 amp rate from the battery pack and the chargers can get quite hot doing so too. So using a external load works great and you don't have to sit there and manually monitor it either.

You might think a discharge function is no big deal. But if you crashed or damaged whatever it was you were using and you had a couple or three bigt Lipo packs all charged up, and you couldn't just use the battery packs to run them down, then you are stuck.

Another feature you don't see on Lipo chargers much is the "Hot Wire" function letting you use the iCharger to run a hot wire setup for cutting foam to make wings, et cetera. The Hot Wire function also works well as a way to help discharge Lipo packs too. There is a thread here someplace that goes into detail for that method.
 Mar 29, 2012, 11:15 AM Registered User So. Cal. Joined Oct 2004 8,931 Posts A 106B+ will charge a lipoly much faster than a Turnigy A-6-10. The iChargers have charge lead voltage drop compensation and will stay in CC mode much longer than a Turnigy charger, leading to shortened charge times. This is especially true at higher charge currents and if using long charge leads. One other MAJOR benefit of the iCharger is the fact that it has the ability to accurately measure individual cell internal resistance of your lipolys. This allows you to immediately determine the quality of any lipoly pack and use it as a basis of comparison to other packs. Read more about internal resistance here and here. Mark
Mar 29, 2012, 01:26 PM
Registered User
United States, GA, Alpharetta
Joined May 2011
37 Posts
Quote:
 Originally Posted by qwerty11 What is so good about that extra functinality though? My goals are to be able to ballance, charge, and discharge.
not only extra functionality (foam cut, monitor, regenerative discharge...), but while icharger doing measurement , turnigy only estimate values.
Mar 29, 2012, 05:38 PM
Registered User
Poland
Joined Nov 2010
462 Posts
The current waveform during lipo IR testing (iCharger 3010B, 2500mAh 1S lipo cell, balancer wires connected, IR=6mΩ). Peak current 11.3A, pulse duration ~320ms.
ICharger adjusts current to actual pack parameters (IR specifically).

Images

Last edited by LeszekJ; Mar 29, 2012 at 06:03 PM. Reason: specifically
Mar 29, 2012, 05:50 PM
Registered User
So. Cal.
Joined Oct 2004
8,931 Posts
Quote:
 Originally Posted by LeszekJ ICharger adjusts current to actual pack parameters.
Which parameters specifically?