Kalkhoff Suomi - Service Life and Warranty; Of the Battery; Of the Drive

V User Manual Impulse Pedelec 29
• the age of the battery.
A battery also ages during storage.
A lithium-nickel-cobalt-manganese battery loses
approx. 4-5% of its initial capacity per year and a
lithium-nickel-cobalt-aluminium-oxygen battery
approx 2-3%.
This means: Even if you do not use your battery, 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 pro-
cesses.
• You can extend the service life of the battery
by lly recharging it aer every journey, how-
ever 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.
› 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
components, 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
ageing 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 processes
Aer 1,100 charging cycles, your battery will
still have 60% of its initial capacity, providing it
has been well looked aer. This means 6.6 Ah in
an 11Ah battery and 7.2 Ah in a 15 Ah battery. A
charging cycle is dened as the sum of the indi-
vidual charges until the charges reach the overall
capacity of the battery.
For example: You charge the battery with 5 Ah on
the rst 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.
From the technical standpoint therefore, the bat-
tery is exhausted at this point. 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 dispose of your battery and sell you a new one.