Turnigy Accucel-6 50W 6A

[Paweł Stawicki]

Hi All, 

Has someone tested cheali-charger with "Turnigy Accucel-6 50W 6A"

is it working?

Jozsef,

I see on Your github page: "accucel6-5A charger not compatible 50W-6A version firmware"

Can you describe what the problems are?

Best Regards,

Paweł

[Paweł Stawicki]

2014-02-20 22:35 GMT+01:00 Nagy Jozsef <nagy.jo...@gmail.com>:

Hi pawel
Accucell good working. Absolute accurate.

that's great,

so for the: "Turnigy Accucel-6 50W 6A" I should use the 50W-6A version

and for the older charger "Turnigy Accucel-6 50W 5A" (I'm not sure if that’s the correct name)

I should use the 50W-5A version?

 

But 400w and 200w v2 version non.
Current meter non linearity zhe full scale. Need the 5 point calibration data. I thinking this function.

Accucel charger two version on hobbyking.
Old 5A and new 6A version.

5A version not good working 6A max amper but calibration value overflow (measure value).
I think some resistor changed the new version near current measure circuit.

Best regards
Good to hear you again.

 The pleasure is on my side ;) 

Jozsef

[Nagy Jozsef]

Hi all

I clarifying

I try only old pcb 6A versions. This is working good.

New PCB Accucell6 (not found ISP port) I dont know.

Jozsef

[pszynk]

Hi all

I attach a photo of the AccuCell 6A with new PCB.

This is similar (the same?) to IMAX B6.

Near LCD is ISP port, I soldered a gold pins. I've tried and this port is working!

I don't flash my charger with Pawel's firmware yet, I've only tried dump a original firmware but did not succeed.

Lock bits ATmega32 are set to F8.

Regards

[Nagy Jozsef]

If needed stock fw for backroll pleasedownload My github repository
https://github.com/njozsef/cheali-charger-test1/tree/master/hex/stock

[cmlp]

Hi pszynk,

I have this same 6A version I think. Did you try yet using the cheali firmware?

The stock fw linked by Nagy seems to be for a 80W charger. Would this be ok for the Accucell 6A 50W model?

cmlp.

[Dave Johnson]

I have the new PCB 6A version and it does not work with the 6A CealiCharger FW from Nagy.  It does work with the "B6 Original" CealiCharger, but it is limited to 5A charge rate.  I tested and it successfully charges to 6A on the stock Turnigy FW:

http://www.rcgroups.com/forums/showpost.php?p=28728382&postcount=220

-=dave

[Paweł Si]

2014-06-25 20:08 GMT+02:00 Dave Johnson <davejoh...@gmail.com>:

I have the new PCB 6A version and it does not work with the 6A CealiCharger FW from Nagy.  It does work with the "B6 Original" CealiCharger, but it is limited to 5A charge rate.  I tested and it successfully charges to 6A on the stock Turnigy FW:

http://www.rcgroups.com/forums/showpost.php?p=28728382&postcount=220

if you know how to compile the source just change:

 cheali-charger/src/hardware/imaxB6-original/HardwareConfig.h:24

#define MAX_CHARGE_I            ANALOG_AMP(5.000)   //5A

to

#define MAX_CHARGE_I            ANALOG_AMP(6.000)   //6A

if it work I will add it to the project.

[Tony Kennedy]

Related to this question, the maximum discharge rate on the stock firmware was 1A. Anyone know why it's set to 2A in the HardwareConfig.h file? I'm assuming it's because it's based on the iMax B6. The comment in the code actually says "should be 1A".

#define MAX_DISCHARGE_P         ANALOG_WATT(5.000)                //5W
#define MAX_DISCHARGE_I         ANALOG_AMP(2.000)   //should be 1A

It would also be great to mod this so it could discharge faster. I've got no idea what to change to do it though.

[Paweł Si]

I changed this to 2A, I don't remember why (the discharge transistor should handle it)
but more important is the MAX_DISCHARGE_P limit

you can try to increase this value, but you must be aware that the charger is not designed 
for a bigger discharge power (heat dissipation is too small), you will probably burn the charger on longer run.

[Tony Kennedy]

I changed this to 2A, I don't remember why (the discharge transistor should handle it)
but more important is the MAX_DISCHARGE_P limit

you can try to increase this value, but you must be aware that the charger is not designed 
for a bigger discharge power (heat dissipation is too small), you will probably burn the charger on longer run.

I will not change it. It's better to be a bit patient and wait for it to discharge without the risk of damaging anything (especially when working with LiPo batteries).

[Nagy Jozsef]

Commonly problem discharger more than 1A (on 50W chargers)

but analogue copmarator and ADC measurement overflow with actually voltage divider. Need hardware modification.

I recommended not more 1A discharger.

Jozsef

[Paweł Si]

2014-09-01 12:56 GMT+02:00 Nagy Jozsef <nagy.jo...@gmail.com>:

Commonly problem discharger more than 1A (on 50W chargers)

but analogue copmarator and ADC measurement overflow with actually voltage divider. Need hardware modification.

I recommended not more 1A discharger.

Jozsef

Thanks Jozsef,
I will change it to 1A.

 

[Dave Johnson]

I have, but I am only able to charge to 1.3A (we discussed before).

I see now that the video I uploaded didn't get posted correctly.  I will try to make another one.

-=dave

[Electro nik]

Hi!

So, which hex should I use for accucell 6A, to have 6A charging?

[Dave Johnson]

A bit late in my reply, but noticed this and thought I would let you know that changing MAX_CHARGE_I  to (6.000) resolved the issue and I was able to successfully charge to 6A (verified) with the "PCB 6A" (IMAX B6 Clone) version of the Accucel 6 6A 50W charger I discussed above.  Been working great for many years now :)

I finally upgraded from Nagy's version so no longer have the battery names, which is disappointing.  It would be nice to have a compile-time option to reduce slot count in exchange for custom battery names, but such is life.

FYI, this version of the board does not have the required capacitors to support the advanced ADC noise injection feature.

Cheers !

-=dave

[Dave Johnson]

Clarification: "SK6000A 10/10/2009" "PCB 6A" (IMAX B6 Clone) version.  Loading stock IMAX B6 hex allows charging to 5A, custom compile allows charging to 6A and has worked fine without issue since 2015 :)

[mase....@gmail.com]

is it possible to charge a 6600 MAH 2s battery, since it does not make me reach over 6000mah, maybe modifying the firmware or risk something?

[diggit]

You can charge batteries of any capacity with cheali. Or what are asking about?

[Massimo Di Blasi]

I'm asking to increase the amper up to 6600, because it does not exceed 6000 I wanted to know if I can do it because my batteries are over 6000 ..

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[diggit]

Your charger is limited by its' hardware. If it was designed to sustain 6A charging current, it can't go higher. You'll have to wait a bit longer to charge your 6Ah+ batteries.

To unsubscribe from this group and stop receiving emails from it, send an email to cheali-charge...@googlegroups.com.

[Ozzy3333333]

I am pretty sure he means the mAH limit is 6000mAH, most chargers you can change this limit in "system settings", then "capacity cut-off" setting. By default its 6000, but I have changed mine to 8000mAH. So he is not talking about charge current.

[Небелунг]

Dear friends! Thank you for your support and your advice! But you
didn’t understand correctly here. I meant the cut-off current when the
charge voltage was reached. Did you understand what it was? when the
current, for example, 4.2, the cut-off current of the original is
slightly less than 100 miliamper (I checked with the device) you can
put it on video in YouTube and 50 miliamper and lower