7. Why does my battery perform less in the winter?
Low temperatures below 0 degrees have a lesser effect on the battery's capacity. The chemistry of the cells cannot cope with this properly and every battery is affected by this. This can sometimes temporarily reduce the total capacity of the battery by 30%. So the battery gets empty faster. The capacity reduction is a temporary phenomenon, when the battery is warmed up, the regular capacity returns.
This effect can be reduced by charging the battery indoors, so that the battery itself already warms up a little. The battery is placed back on the bike just before riding. Because the battery barely cools down during cycling, you can cycle longer.