Kalkhoff IMPULSE EVO RS Notice Originale page 188

Route selected: You need to pedal harder when cycling uphill or against
strong head wind. This is registered by the power sensor, which in turn
requires the motor to work harder.
Charging a smartphone: Connecting a smartphone to your Impulse Evo
Smart display to charge it also requires power.
9.4.2 Storage
1. Remove the battery from the pedelec.
2. Store the battery in a dry, not excessively warm room. The battery
should not be exposed to direct sunshine. The recommended storage
temperature range is 18 to 23 °C.
IMPORTANT
The battery should not be stored in a fully charged state. A charge
level between 50 and 70% (

charge very slowly, you should recharge it when only one or two LEDs
come on, but after six months at the latest.
EN-86 Original User Guide | Pedelec Impulse Evo RS Version 2
) is ideal. Since the battery loses
9.4.3 Cleaning
DANGER
If you wipe the battery avoid touching the contacts, otherwise there is
the risk of an electric shock.
WARNING
Remove the battery from the pedelec before cleaning. Unintentionally
pressing the button represents a risk of injury.
CAUTION
Batteries must not be immersed in water. This presents a risk of
explosion. Do not extinguish a burning battery with water, only the
surrounding burning material. Fire extinguishers with metal fire
powder (Class D) are more suitable. If it is possible to take the battery
safely outside, smother the fire with sand. But you need not be afraid
of the battery exploding under you when you ride the cycle through
rain. The battery is sealed to prevent moisture and spray water from
entering.