Kalkhoff Derby Cycle Werke GmbH 2011 - Checking the Battery Capacity; Service Life and Warranty; Of the Battery; Of the Drive

V User Manual Impulse Pedelec 19
7.4.2 Checking the battery capacity
If you press the "Push" button for ve seconds, the LEDs
show the current capacity of the battery.
DISPLAY CAPACITY
•••••
5 LEDs light up  – %
••••
4 LEDs light up  – %
•••
3 LEDs light up  – %
••
2 LEDs light up  – %
•
1 LED lights up  %
› The range of the battery is less in winter due to the
lower temperatures. Only move the battery (om
the warm room where you store it) and t it on
your Pedelec just before you set o. This will help
to prevent the eect of the low temperature on the
range of the battery. ➠ Chapter 7.5.2 "Service life
and warranty of the battery"
7.5 Service life and warranty
7.5.1 of the drive
The Impulse centre motor is a durable maintenance-ee
drive. It is a wear part with a two-year warranty. As its
power output is higher, wear parts such as the drive and
brakes are subject to higher loads than they would be on a
normal bike. Due to the greater force acting on these com-
ponents, wear is more pronounced.
7.5.2 of the battery
Batteries are wear parts. Wear parts come with a two-year
warranty.
If the battery develops a fault during this period, your
specialist cycle shop will of course replace it. Normal age-
ing and battery wear do not constitute a fault.
The service life of the battery depends on dierent factors.
The most important wear-relevant factors are
• the number of charging operations and
• the age of the battery.
When you have lly charged and discharged your battery
1,100 times, it will still have 60% of its initial capacity,
i.e. 6.6 Ah with a 11 Ah battery, providing it has been well
looked aer. At this point you will already have travelled
roughly 88,000km with your battery.
From the technical standpoint therefore, the battery is
exhausted at this point. It also goes without saying that
the battery ages. Even if you do not use your battery, its
capacity reduces. In general, the battery is expected to
age at a rate of 5% per year.
Providing you can still cover the journey distances with
the remaining battery capacity, you can of course continue
using it. If the capacity is no longer sucient, you can
take your battery to a specialist cycle shop who will dis-
pose of your battery and sell you a new one.
› You can extend the service life of the battery by
lly recharging it aer every journey, however
short. The Impulse Li-ion battery has no memory
eect.
› You can also extend the service life of the battery
by using the assistance selectively. Avoid, for ex-
ample, using gears that make pedalling dicult
with the highest assist level activated.