Derby cycle Kalkhoff - Battery; Charging the Battery

20 User Manual | Pedelec with centre motor
Charging times at dierent temperatures
Battery may be dam-
aged
Optimum temperature
for charging operation
Long charging times
-10 °C 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C
5 Battery
Your battery is a lithium-ion battery, the ideal type of bat-
tery for this application. One of the main benets of this
battery is its low weight combined with a high capacity.
5.1 Charging the battery
› Damaged batteries may not be charged, and r-
ther use is not permitted.
› The battery may heat up during charging. It can
get lukewarm. If it reaches 45°C, the battery
stops charging for safety reasons.
› During the charging process, the battery must be
positioned on an even, non-ammable surface.
The charger must not be covered.
› There is no memory eect. You can therefore lly
recharge your battery aer every trip.
› Recharge the battery aer every trip, so you are
always ready for the o.
› Each battery self-drains to a certain degree. Over
an extended period of time this can lead to total
discharging which damages the battery. In the as-
delivered condition, the battery is not lly charged
and is in what is referred to as sleep mode. Sleep
mode minimises the rate at which the battery dis-
charges itself. In addition, the battery management
switches the battery to sleep mode aer a certain
length of time to protect it. The following table
shows what to expect of your battery:
BATTERY CHARGE STATE SLEEP MODE
Panasonic <30%
aer 15 days without
use
<7%
aer seven days with-
out use
<2%
aer two hours without
use
26 V/18 Ah normal
charge state
(0–100%)
aer three days with-
out use (without being
charged or discharged)
26 V/24 Ah normal
charge state
(0–100%)
aer three days with-
out use (without being
charged or discharged)
To “wake up” the battery, simply place it in the charger
for one minute. The 18 Ah and 24 Ah batteries can also be
woken up by pressing the PUSH button.
If you put a battery with a >60 percent charge into stor-
age, you can leave it for six months before recharging it.
Then you must recharge it.
Ideally you should charge the battery at a temperature of
between +10°C and +30°C. It takes longer to charge the
battery at low temperatures, the battery will not charge
up at temperatures higher than +30°C.