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Old Mar 27, 2012, 07:10 PM
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Some how you put my name on Marks quote/snip

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Old Mar 27, 2012, 07:14 PM
I ♥ OpenTX
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Originally Posted by everydayflyer View Post
Some how you put my name on Marks quote/snip

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Sorry. Fixed. I control-Ved the wrong quote tag.
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Old Mar 28, 2012, 12:37 AM
Just fly
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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?
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Old Mar 28, 2012, 01:07 AM
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(Input volts) x (21 amps max) x (.9 efficiency)

13.8 x 21 x .9 = 261 watts


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Old Mar 28, 2012, 01:11 AM
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Originally Posted by evltoy View Post
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
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Old Mar 28, 2012, 01:21 AM
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thanks a heap guys. I'm tossing up if I buy 206B or just another 106B+
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Old Mar 29, 2012, 09:17 AM
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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
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Old Mar 29, 2012, 09:23 AM
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Heaps more functions and charging options

Have a read of both manuals


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Old Mar 29, 2012, 10:42 AM
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What is so good about that extra functinality though? My goals are to be able to ballance, charge, and discharge.
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Old Mar 29, 2012, 11:19 AM
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Haralson County GA. USA
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Originally Posted by qwerty11 View Post
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
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Old Mar 29, 2012, 12:12 PM
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Originally Posted by qwerty11 View Post
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.
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Old Mar 29, 2012, 12:15 PM
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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
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Old Mar 29, 2012, 02:26 PM
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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.
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Old Mar 29, 2012, 06:38 PM
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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).
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Last edited by LeszekJ; Mar 29, 2012 at 07:03 PM. Reason: specifically
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Old Mar 29, 2012, 06:50 PM
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ICharger adjusts current to actual pack parameters.
Which parameters specifically?
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