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It's more a case of forgetting to charge or "oh it's raining tonight, I won't be plugging my charger in"... "oh shit I'm empty" and then having to stand on the roadside waiting for the juice to flow. Whereas on 11s I could get shifting back as soon as I plugged in the charger - if my bike wasn't covered in feed bags I wouldn't even have to stop moving.
hippy-
Have you got TT bars on your gravel bike for the long endurance races?
If so, depending on shape you could just stuff a fully charged battery in each TT extension, and connect them to the rest via a Junction A around the stem. When one is empty, plug out and plug in the other one. No need to stop :)Here's the described setup, but only with 1 battery on my TT bike. O-ring & electric tape in layers around battery body until its a nice and snug fit.
kiskubai
Sounds like fun!
The whole system takes 1-3 hours to charge. In the real world, are people really riding 1,500km+ without stopping for 1-3 hours?