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-   -   iCharger DX8 (https://www.rctech.net/forum/radio-electronics/1097947-icharger-dx8.html)

gigaplex 10-23-2022 03:51 PM


Originally Posted by Glencoe (Post 15950410)
I’m curious can it charge at 50 amp?!!!

Yes, if you combine both channels to synchronous mode.

trilerian 11-04-2022 06:47 AM

Does anyone know if this can perform the function of a variable voltage power supply? I was able to do it with the X6, but can't remember how. I know the 308, 406, 4010 are not able to do this, so I want to verify that the DX8 can. Also, has anyone tried out any of the custom cases for these, or any icharger? IF so, thoughts on them...

Eddie M 11-21-2022 02:45 PM

FW download.
 
Does anyone know where to download the latest FW? A friend of mine bought one, and it came with fW 1.08, but on the Junsi console, it can only find v1.06 online.

edman4523 01-01-2023 07:23 PM

Setting up my DX8 charger profiles and need some conformation that they look good. I made a 1C and 2C charging profile. These seem like safe charging ranges but if I'm wrong please let me know. These are my first lipo batteries.
The batteries are Protek 2s 4800mah. The Balance Charge is selected also on both profiles.

https://cimg3.ibsrv.net/gimg/www.rct...0bf1ec415e.jpg
https://cimg5.ibsrv.net/gimg/www.rct...0502086779.jpg

DirkW 01-02-2023 06:29 AM


Originally Posted by edman4523 (Post 15969175)
I made a 1C and 2C charging profile. These seem like safe charging ranges but if I'm wrong please let me know.

Don't worry, 1-2C is perfectly safe. With modern Lipos you could even go higher than that.

edman4523 01-06-2023 09:08 PM

Got my charge cables and just plugged in the batteries. (Nervous about charging the batteries after seeing all the horror stories) I noticed the mV numbers are different. Is this just the difference between cells? Seems like it
I have not charged a battery yet. Tomorrow ill charge them up outside. :)
https://cimg9.ibsrv.net/gimg/www.rct...060c224bb8.jpg

DirkW 01-07-2023 02:51 AM


Originally Posted by edman4523 (Post 15970606)
Got my charge cables and just plugged in the batteries. (Nervous about charging the batteries after seeing all the horror stories) I noticed the mV numbers are different. Is this just the difference between cells? Seems like it
I have not charged a battery yet. Tomorrow ill charge them up outside. :)

Yes, the left battery seems to have some more small voltage drift between its cells than the right one does. After balance charging them, both should be equal. Make sure you check after you have not only charged them but used them afterwards, if the cell drift appears again, and by how much.

Don't worry too much, If you follow some basic precautions, you'll be fine. Yes, these LiPo horror stories exist and bad things have happened with them. But compared to "all the stories", think how often thousands upon thousands of LiPos are charged around the world each moment, and you'll never hear anything, because nothing happened.

edman4523 01-07-2023 12:15 PM

Here are a few photos of my first time charging a lipo battery. Its a 4800mAh battery.
The battery started charging @9.6amps which is what I had set it at. But as it got closer to being fully charged the amps dropped down to .8amps. The drop happened in the last 10mins of charging. Is this because of the balance charging?
I did not discharge the battery before I charged it. Looks like I should have done that as it a 4800mAh battery and it only got to 2988mAh.
https://cimg5.ibsrv.net/gimg/www.rct...23bd9d0cd4.jpg




DirkW 01-08-2023 03:42 AM

Yes, it's normal and yes, it's the balancing. And no, you don't need to discharge before charging.

In fact, LiPos should never be stored fully charged or fully discharged, but in a certain voltage range, called "storage voltage" - that's what your battery was at (they are sold like that), so of course it needed less than 4800 to get to a full charge, since it wasn't really empty. In fact you must never run a LiPo below 3.0V per cell at all, some say even 3.2V with today's HV cells - otherwise you can easily damage or destroy you battery. If you want to treat your batteries a little better, set your personal limit even higher (~3.5V). Most modern ESCs have a setting at which they will either become noticeably slower or immediately stop running at a certain voltage. I always set mine relatively high, so I never end up with less than 3.5 or 3.6V per cell. Unlike NiCd, LiPos also have no memory effect, so you basically never need to discharge them below storage voltage at all. (What some people do - not saying you should! - is a full cycle, they discharge and immediately charge the battery again, both with very high Amps (20-40, possibly up to 70), which will heat up the battery internally, which lowers it's internal resistance (IR) and supposedly brings a tiny bit more performance for stock class racing - but at the cost of battery life, and some people say safety as well, so I don't recommend you do that.)

But all this is pretty much basic LiPos knowledge. If you didn't know any of it until now, you should better start reading up about LiPo care quickly, or watch some video tutorials, because without basic knowledge, you can and likely will damage your batteries - and what damaged LiPos can do... well, you've already heard. They're only safe if treated correctly!

Cinnabun 01-24-2023 11:13 AM

I just got my DX6 delivered.. I appreciate the much smaller size than the 406duo. Seems to do everything the same otherwise.

edman4523 02-06-2023 05:46 PM

I want to setup a 20amp charging profile. When I enter 20 amps under setup it is giving me a warning. Am I doing something wrong or is it just telling me caution?
The caution shows up at 14.9 - 30 amps. I've only been charging at 9.6 amps. Just want to make sure all is good.

https://cimg8.ibsrv.net/gimg/www.rct...2a4ce16d75.png

Cinnabun 02-06-2023 05:51 PM


Originally Posted by edman4523 (Post 15979481)
I want to setup a 20amp charging profile. When I enter 20 amps under setup it is giving me a warning. Am I doing something wrong or is it just telling me caution?
The caution shows up at 14.9 - 30 amps. I've only been charging at 9.6 amps. Just want to make sure all is good.

https://cimg8.ibsrv.net/gimg/www.rct...2a4ce16d75.png

if I had to take a guess, it’s giving you the warning because of the capacity shut off you entered. It’s probably giving you a warning about charging above 3c. I’ve charged my 4800mah proteks at 20a without any warning messages, but I don’t have a cutoff capacity programmed.

edman4523 02-06-2023 06:42 PM

If I set it up without entering the Cells (AUTO) and capacity (IGNORE) there are no more warnings. Should this be OK?

https://cimg4.ibsrv.net/gimg/www.rct...cf148e28cf.png


Cinnabun 02-06-2023 06:52 PM


Originally Posted by edman4523 (Post 15979504)
If I set it up without entering the Cells (AUTO) and capacity (IGNORE) there are no more warnings. Should this be OK?

https://cimg4.ibsrv.net/gimg/www.rct...cf148e28cf.png

thats how I charge mine. It cuts off at 4.2v/cell.

CloseYetFar 02-08-2023 10:32 AM

I'm pretty sure charging any Lipo battery faster than 2C is going to reduce the overall life of the battery in cycle count. It can also start a fire if too much heat builds up. I believe that is what the warning is about. I would just ignore the warning if you need to charge that fast for racing. Just keep an eye on it while doing so.


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