E-Bike CITY BIKE, Original Operating Manual

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Servicing and maintaining the bike
94
Servicing and maintaining the bike
Battery maintenance
The battery is designed for about 500 charging cycles. After 500
cycles, the battery no longer has 100% capacity. The capacity is
still about 60% after 500 cycles. A charging cycle involves
charging the battery from 0% to 100%. Charging the battery from
99% to 100% does not count as a full charging cycle, but it counts
only as 1% of a full charging cycle. 500 charging cycles usually
last more than two years.
You can store the battery with a charge level of 75% for around 5
months without recharging it. This is about three months for a
charge level of 50%.
In order to not shorten the service life of your battery, proceed as follows:

Charge the battery when the battery level is between 30% and 50%
after riding.

Make sure that the battery is not completely discharged (total
discharge).
This can happen if the battery is discharged completely and then the bike
is parked for several days.
The charging process of a totally discharged Zündapp battery (from 1% to
100%) takes:

7.2 Ah, 5 hours

8.8 Ah, 6 hours

10.4 Ah, 7.5 hours

14.5 Ah, 14.5 hours
To store the battery for more than two months, proceed as follows:

Remove the battery.

Make sure that the battery has no visible damage, such as a broken
housing, for example.

Charge the battery completely before long-term storage.