For me the possibility of the battery being flat is higher than a co2 cartridge mysteriously being empty when needed. Still, if it’s an important ride it’s not hard to stick it on charge beforehand. Much like co2 I won’t rely solely on it if going far from home, but I have one of the Airbank electric pumps and it’s currently in the place of the co2 I used to carry in the saddle bag. The only concern is re-seating a tubeless tyre, but I have inserts so it’s unlikely I’ll need to do that roadside
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