What is the best state of charge to keep the batteries on my etap groupset whilst the bike is in winter hibernation? I took it out for a brief spin and noticed the batteries had drained whilst being sat still on my rack.
best state is in the charger :)
Leave them disconnected on the shelf at around 50% charge at room temp. Dont store them with zero charge.
Leaving batterys on charge in the chargers for long periods of time is probabaly the worst way to store them.
@Hovis started
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What is the best state of charge to keep the batteries on my etap groupset whilst the bike is in winter hibernation? I took it out for a brief spin and noticed the batteries had drained whilst being sat still on my rack.