18
Original User Manual | Pedelec Impulse 2.0 Ergo
The range of the battery is less in winter due to the
lower temperatures. Only move the battery (from the
warm room where you store it) and fit it on your Pe-
delec just before you set off. This will help to prevent
the effect of the low temperature on the range of the
battery.
5.3 Battery management
The battery management monitors the temperature of
your battery and warns you of incorrect use.
›
If an external short-circuit has been caused at
the contacts or the charging socket, please con-
sult your specialist cycle shop.
›
Never leave the battery unattended during charg-
ing. Disconnect the charger after use.
5.3.1 Sleep mode
The battery management switches the battery to sleep
mode to prevent a so-called deep discharge. At the latest,
the battery management activates the sleep mode after
ten days without use. The system exits sleep mode when
you connect the battery to the charger or press the battery
key | push button on the battery.
5.4 Warranty and service life
Batteries are wear parts. Wear parts come with a two-year
warranty.
If a fault occurs during this period, your specialist cycle
shop will replace the battery. Normal ageing and battery
wear do not constitute a fault.
The service life of the battery depends on different factors.
The most important wear-relevant factors are:
• The
number of charges
After 1,100 charging cycles, your battery will still
have 60% of its initial capacity, providing it has
been well looked after. This means 6.6 Ah in an
11 Ah battery and 7.2 Ah in a 15.5 Ah battery. A
charging cycle is defined as the sum of the indi-
vidual charges until the battery has been charged
to full capacity once.
For example: You charge the battery with 5 Ah on
the first day, 2 Ah on the second day and 4 Ah on
the third day; the sum is 11 Ah. The battery has
thereby completed one charge cycle.
According to the technical definition, the battery is
exhausted when less than 60% of the initial capac-
ity is available. If you can still ride the distances
you require with the remaining battery capacity,
you can of course continue using it. If the capacity
is no longer sufficient, you can take your battery to
a specialist cycle shop, which will dispose of your
battery and sell you a new one.
• The
age of the battery
A battery also ages during storage.
An 11 Ah battery with lithium-ion cells loses around
4–5% of its initial capacity each year. A 15 Ah bat-
tery with lithium-nickel-cobalt-aluminium-oxygen
cells around 2–3%.
This means that even if you do not use your bat-
tery, its capacity reduces. With everyday use, you
can expect the battery to age by approximately
3–5% per year as a result of ageing and charging
processes.
Ensure that the battery does not become too hot.
The rate at which the battery ages increases signifi-
cantly at temperatures above 40°C. Direct sunlight
can heat the battery considerably. Be sure not to
leave the battery in a hot car, and always stand
your Pedelec in the shade during breaks in cycle
trips. If you cannot prevent exposure to heat, do
not charge the battery until it has cooled down.
A fully charged battery ages at an even greater rate
than a partially charged one at high temperatures.
• If you always ride with maximum motor output,
your motor will always require a higher current.
Higher currents cause the battery to age more
quickly.
