I was actually just researching what type of plug that port takes and in the process came to learn the port is isolated from the battery while the bike is off so a battery tender doesn’t actually work being connected there so that could be your issueDoes anyone know if the DIN Adapter Cable, part number A9930600 which plugs into the power socket on the Triumph Rocket 3 and then into the Triumph Battery Optimizer also works with the Battery Tender brand charger? I just picked up the adapter cable which easily plugs into the matching pigtail on the battery tender however its not charging.
According to this document attached it seems like it is supposed to work whether the bike is on or off. See attached.
According to this document attached it seems like it is supposed to work whether the bike is on or off. See attached.
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