Narex CR LED 20, Original Operating Manual

English

15

Charger safety warnings

–  This appliance is not designed for use by other people (chil-

dren included), physical, sensory or mental incapability or 

lack of experience and knowledge of whose prevent from safe 

use of the appliance without being supervised, or without be-

ing instructed on use of the appliance by a person responsible 

for their safety.

–  Children should be supervised to avoid their playing with the 

appliance.

Accumulator Charging Instructions

1�  Please make sure the mains voltage is the same as the volt-

age listed on the charger’s machine plate� Connect the charg-

er (N1) to a power source� A red LED indicator (N2) will light up� 

This means the charger is ready to charge� If the red LED indi-

cator does not light up, check the connection to power supply� 

If the power supply functioning correctly, bring the charger in 

for repair to an authorised service centre!

2�  Slide the accumulator (B1) all the way into the charger�
3�  The red LED will light up and the green LED (N2) will start flash-

ing to indicate that the accumulator is charging�

4�  After approximately 60 minutes, the accumulator should be 

fully charged, indicated by the green and red LED staying lit 

without flashing�

5�  Remove the accumulator from the charger� If you do not wish 

to charge another accumulator, disconnect the charger from 

the power source�

Overview of LED charging indicator signals (N2):

Green LED

Red LED

Meaning

off

on

connected to a power source

flashing

on

accumulator is charging

on

on

accumulator is charged

off

flashing

charger or battery temperature 

too high

alternately flashing

accumulator is damaged

New batteries:

Battery capacity may be slightly smaller than the listed value dur-

ing the first few initial charge cycles� The reason is that the chem-

ical composition of the batteries has not been activated yet� This 

is a temporary issue and will resolve on its own after a few charge 

cycles�

Note:

•  A  blinking green indicator means that the battery is fully 

charged or that it is in slow charge mode, which maintains 

a low charge level of the battery�

•  The initial battery charge may take longer then  60 minutes 

(according to battery capacity) depending on the environment 

temperature, the power supply and the current charge level�

•  If you are not using the charger, please unplug it from the pow-

er source�

Important information about the charging 

process:

1�  To get the best out of the batteries in terms of longevity and 

performance is to charge them at an ambient temperature of 

18 °C to 24 °C� 

DO NOT CHARGE

 the batteries at temperatures 

below 0 °C and above 45 °C� This is very important� You will 

prevent serious battery damage�

•  Do not charge the batteries in direct sunlight, especially in the 

summer! You will prevent extreme overheating, which could 

damage them!

2�  If a  battery that is too cold (below 0  °C) is inserted into the 

charger, the charger will not begin charging it right away; 

instead, the green and the red indicator light will begin blink-

ing� Once the battery reaches the right temperature naturally 

(within the standard range), the fast charge process will begin 

automatically�

•  If a battery that is too hot (more than 45 °C), is inserted into the 

charger, the charger will not begin charging it right away; in-

stead, the green and the red indicator light will begin blinking� 

Once the battery reaches the right temperature (within the 

standard range), the fast charge process will begin automat-

ically�

3�  If it is not possible to charge the batteries properly (the red 

indicator is blinking):

•  Check that the battery contact surfaces are not dirty� Clean 

them with a cotton wad and alcohol as needed�

•  If the battery is still not charging properly, send or bring the 

charger (including the batteries) to your nearest authorised 

service centre�

4�  Under certain conditions and if the charger is connected to 

power, foreign material may short circuit the charge contacts 

inside the charger� Foreign conducting substances, such as 

steel fibres, aluminium foils or metal deposits must be re-

moved from the charger continuously� Always unplug the 

charger from power prior to cleaning�

5�  If you are carrying out several different charge operations one 

after the other, the charger may become hot� This is normal 

and is not a sign of a technical problem�

6�  Prevent liquid from getting inside the charger as it could cause 

an electrical injury� Do not place the battery in a hot environ-

ment if you wish to facilitate the battery cool down process�

7�  Accumulator batteries can remain plugged into the charger 

without a risk of damage to them or the charger itself� The bat-

teries will remain fully charged in the charger� 

DO NOT LEAVE

charged batteries in the charger if the charger is not plugged 

into the power outlet�

8� 

DO NOT USE ACCUMULATOR BATTERIES

 if they are damaged 

or if liquid leaks out of the cells� If the battery liquid comes 

into contact with your skin, immediately flush the area with 

water and monitor the skin’s reaction� Seek medical attention 

if needed� If it comes into contact with your eyes, flush them 

with lots of water and immediately seek medical attention�

9�  If you are charging a  fully discharged battery or if you stop 

charging the battery before it is fully charged, you must count 

each of these cycles as an entire charging cycle�

Note on Lithium-ion (Li-Ion) batteries

•  These types of batteries do not have a memory effect, in other 

words, the batteries can be charged at any state of discharge� If 

you take the batteries out of the charger prior to fully charging 

them, it will not damage them�

•  Each Li-Ion battery is equipped with deep discharge protec-

tion� If the voltage falls (due to overloading or discharge) be-

low the monitored range, the electronic circuit will disconnect 

the cells� The machine will then either work intermittently or 

not at all� You must reduce machine load or recharge the bat-

tery�

Storing lithium-ion batteries

•  Store fully charge batteries in a dry and dust-free environment 

at an ambient temperature between 5 °C and 40 °C� If you are 

not using the batteries for a longer period of time, we recom-

mend you charge them fully once every three months�

•  Keep the battery contacts clean� Do not store the replacement 

battery together with metal items as it may cause a short cir-

cuit�

•  It is always necessary to charge batteries that were not used for 

a long time prior to use�

Transporting lithium-ion batteries

As per legal regulation, lithium-ion batteries fall into the hazard-

ous load category� These batteries must be transported while com-

plying with local, national, as well as international guidelines and 

regulations�

•  Consumers may transport these batteries on public roads 

without a problem�

•  Commercial transportation of lithium-ion batteries by trans-

portation companies must comply with the regulation on 

hazardous load transportation� Only trained personnel may 

carry out the preparation and the actual transport� The entire 

process must have expert supervision�