Hi Ayub
I'm using the same one as the one that comes with the battery.
The one that came with the battery was too short for my set-up.
for Growatt Setting 36: please try L52 instead of L51
I managed to get CFE5100s Li battery and Growatt 5000ES communicating here is the settings I used
Protocol Type: Can
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CFE Switch settings(Switch off the battery before making these changes):
SW1: 1&2 up
SW4(CANL): 5up
SW5(CANH): 4up
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Growatt setting 05:
Li
Growatt Setting 36:
L52