Checking The Battery Capacity; Service Life And Warranty; Of The Drive; Of The Battery - Derby cycle Impulse User Manual

7.4.2 Checking the battery capacity

If you press the "Push" button for five seconds, the LEDs
show the current capacity of the battery.
DISPLAY
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 (from
the warm room where you store it) and fit it on
your Pedelec just before you set off. This will help
to prevent the effect 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-free
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 different factors.
The most important wear-relevant factors are
• the number of charging operations and
• the age of the battery.
CAPACITY
100 – 80%
80 – 60%
60 – 40%
40 – 20%
< 20%
When you have fully 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 after. 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 sufficient, 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
fully recharging it after every journey, however
short. The Impulse Li-ion battery has no memory
effect.
› You can also extend the service life of the battery
by using the assistance selectively. Avoid, for ex-
ample, using gears that make pedalling difficult
with the highest assist level activated.
V User Manual Impulse Pedelec 19