Range; Riding Your Pedelec Efficiently; Warranty And Service Life - Derby cycle kalkhoff User Manual

mode you are riding in, the transition between rid-
ing with and without power assist may seem more
or less abrupt.
8.2

Range

The distance you can travel using the power assist with
the battery fully charged depends on several factors:
Selected assist level
•
If you want to cover a large distance with power
assist, select the smaller gears, i.e. the ones that
are easier to pedal. Also select a low assist level
(ECO).
How you ride
•
If you are riding in gears that are harder to pedal
and select a high assist level, the motor will pro-
duce plenty of power to help you along. However,
just as with driving a car at high speed, this leads
to higher consumption. You will therefore have to
recharge the battery sooner. You can conserve bat-
tery power by pedalling with even force throughout
the complete revolution of the pedals.
• Ambient temperature
If it is colder, you will travel a shorter distance
with the same battery charge. To maximise the dis-
tance you can travel, keep the battery in a heated
room so that it is at room temperature when you fit
it on your S-Pedelec.
When the motor is in use, the battery generates
enough heat to not lose too much of its power at
low ambient temperatures. The battery cells can
operate at temperatures of -15°C to +60°C.
Technical condition of your fast PedelecMake sure
•
the tyre pressure is correct. If you ride your bike
with too little air in the tyres, this can signifi-
cantly increase the rolling resistance, especially
on smooth surfaces, e.g. tarmac. If the ground is
uneven, as on a country path or gravel track, a
somewhat reduced tyre pressure can lead to less
rolling resistance. At the same time, the risk of a
puncture increases. Please consult your specialist
cycle shop about this. The range of your S-Pedelec
also decreases if the brakes are rubbing.
Battery capacity
•
The current battery capacity ➠ Chapter 5.2.2
"Checking the capacity".
Topography
•
You pedal harder when riding uphill. This is de-
tected by the power sensor which then allows the
motor to work harder.
8.3

Riding your Pedelec efficiently

You can monitor and influence the cost of your journeys
with the Pedelec yourself.
The Pedelec Impulse 2.0 Offroad with down tube
battery does not have this function.
You can reduce your consumption and therefore costs by
following the tips for increasing the range.
The operating costs for power assist with an 11 Ah battery
are calculated as follows:
• A new battery costs roughly 599 euros.
• You can cover approximately 80 km with one bat-
tery charge.
• You can charge the battery roughly 1,100 times.
• 1,100 charging cycles x 80 km = 88,000 km.
• 599 euros: 88,000 km = 68 cents / km
• You use roughly 0.565 kWh to fully charge the bat-
tery. Assuming a unit price of 20 cents / kWh, it
costs you 11.3 cents to fully charge the battery.
• It costs you 14 cents to cover the average range of
80 km.
• This means the cost of consumption and the bat-
tery is a maximum of 82 cents / km.
This sample calculation is based on German energy prices.
The operating costs may therefore be different in locations
where other energy prices apply.
8.4

Warranty and service life

The Impulse centre motor is a durable maintenance-free
drive. It is a wear part with a two-year warranty. The elec-
tric drive puts an additional strain on parts such as chain,
sprockets and brakes, causing increased wear, compared
to a normal bike.
Original User Manual | Pedelec Impulse Speed 2.0 25