???
That’s exactly what he did, because that’s what the manual for the bike suggested. Stored the batteries at 60% charge in a cool basement, checked on them and re-charged every 6 months as needed.
Sorry, but I’ve just seen way too many people that just keep the charger permanently attached, forcing the battery to stay at 100%, so I assume that happened here, too. Unless you do something harmful to it, the primary limiting factor of a lithium battery is the number of charge cycles, so I assumed something must have happened to the batteries so they degrade to such a minuscule range after being in use for just 2 years.
???
That’s exactly what he did, because that’s what the manual for the bike suggested. Stored the batteries at 60% charge in a cool basement, checked on them and re-charged every 6 months as needed.
Sorry, but I’ve just seen way too many people that just keep the charger permanently attached, forcing the battery to stay at 100%, so I assume that happened here, too. Unless you do something harmful to it, the primary limiting factor of a lithium battery is the number of charge cycles, so I assumed something must have happened to the batteries so they degrade to such a minuscule range after being in use for just 2 years.