Turnigy Accucel 6 50W 6A Success!

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Quarta

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Jan 21, 2023, 6:19:21 PM1/21/23

to cheali-charger

Just wanted to record my success, and thank those responsible for this excellent project.

I have had great success with my charger.

Turnigy Accucel-6 50W 6A - Purchased from HobbyKing in 2014

I am going to document all the information I found useful, and my details ( if I ever need to reference later, and for others).

It appears identical to this https://github.com/stawel/cheali-charger/blob/master/docs/imaxB6/imaxB6-original-front.jpg

Flashing with the Arduino was a breeze.

https://github.com/stawel/cheali-charger/blob/master/hex/unstable/cheali-charger-Turnigy-Accucel-6-50W-6A_2.01-e10.3.12-20170311_atmega32.hex

Warning - it seems most that try to back up end with useless data -and won't be able to revert back to the stock firmware. Although disappointing, I dont think this is an issue- because this firmware is excellent.

Here are the codes I used in AVR dude as per the youtube video I watched (very helpful)

adjust the commands for your com port.

BACKUP-

avrdude.exe -patmega32 -cstk500v1 -PCOM15 -b19200 -Uflash:r:flash.bin:r -Ulfuse:r:lfuse.bin:r -Uhfuse:r:hfuse.bin:r -Ueeprom:r:eeprom.bin:r
avrdude.exe -patmega32 -cstk500v1 -PCOM15 -b19200 -Uflash:r:flash.hex:i -Ulfuse:r:lfuse.hex:i -Uhfuse:r:hfuse.hex:i -Ueeprom:r:eeprom.hex:i

FLASHING NEW FIRMWARE:

avrdude.exe -patmega32 -cstk500v1 -PCOM15 -b19200 -Uflash:w: cheali-charger-Turnigy-Accucel-6-50W-6A_2.01-e10.3.12-20170311_atmega32.hex:a

I had no trouble completing the Separation modification.

https://github.com/stawel/cheali-charger/blob/master/docs/temp_sensor/atmega32_mod/mod_temp_UART_separation.md

Used a 330 ohm resistor on the UART line.

I wasn't able to get UART working -on stock firmware but it works flawlessly after the firmware upgrade and separation mod.

Used https://raw.githubusercontent.com/neolead/skyrc-imax-b6-usb-uart-over-wifi-with-esp8266/main/LogView_2.7.6.511.exe

and put the ini

https://github.com/stawel/cheali-charger/blob/master/utils/LogView/ChealiCharger_6cell_1.0.ini

into

C:\Users\*USERNAME*\AppData\Roaming\LogView\Geraete\OpenFormat

In Logview - go to Device - Choose Device and Port - Reduce Useable devices - scroll to the bottom, select "OpenFormat\ChealiCharger_6cell_1.0.ini" that has no check box.

Settings - Select ChealiCharger_6cell_1.0

Ensure your Port is correct.

Close.

Device - Open Port/Recording - Bingo!

Fully Calibrated.

Settings in Charger:

UART -Normal

Output- Separ

Menu -Advanced - (this unlocks options to set Voltage cutoffs for charging and discharging in each battery)

I noticed it was missing the Output option at first. I had used the 2.00 version.Once I flashed the 2.01 the Output : Separ was available. (for UART)

Other links I found useful during my journey

https://groups.google.com/g/cheali-charger/c/TmUEzamTr5w/m/mmosD7m6AQAJ

https://www.youtube.com/watch?v=_0X9ZkW3zEk

http://download.savannah.gnu.org/releases/avrdude/avrdude-6.4-mingw32.zip

Thank you again for such an excellent project. Very rewarding, It unlocked many features I did not have access to previously.

RCpilot

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May 9, 2023, 1:24:23 AM5/9/23

to cheali-charger

Hi Quarta,

thank You for this review. Do You have any pics or vid of what You had done? I have the same charger, but unfortunately at the first flash attempt it bricked somehow. If nothing helps i will try to swap the chip or unbrick it with a hv programmer.