This time around went with the Genius 1 since my old Optimate 4 Canbus does not support lithium.
Using BMWs built-in pots to tender / maintain.
Installation of the NLP30 was a piece of cake. Plenty of room.
Best money spent!
I've had the same Optimate 4 Canbus since my GS times, always had great AGM battery life > 4 years each.
It's not just that, it's knowing you can trust your battery during that yearly week long trip.
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