Does anyone know the pinout for Pylontech battery communications cable?
Hi all, does anyone know what the correct pinout should be for connecting Pylontech US300c batteries to Sunsynk inverter?
Cheers.
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C models (i.e. US2000C/3000C/5000) are as follows: Pin4 CAN-H Pin5 CAN-L Pin6 CAN-Ground (Can be left disconnected) Pin7 - RS485A Pin8 - RS485B Pins 1-3 MUST be disconnected. A straight through patch lead will work fine, assuming you cut out pins 1-3. However that does mean it's not a twisted pair, as 4 and 5 are borrowing cores from different pairs, so I usually just crimp it up and use one pair for 4/5 and leave the rest disconnected (Same at both ends with Sunsynk fwiw)