Safety Notices And Handling Regulations For Lithium-Ion (Liio) And Lithium-Polymer (Lipo) Batteries - GRAUPNER mc-16 Programming Manual

Safety notices and handling regulations for Lithium-Ion
(LiIo) and Lithium-Polymer (LiPo) batteries
As applicable for all highly technical products, obser-
vance of the following safety notices and handling
instructions is essential for a long service life, fault-free
operation, and harmless utilization of lithium/polymer
batteries.
These instructions are to be safeguarded. If the unit is
transferred to another user, these instructions should
certainly be passed along to the new user.
LiIo-/LiPo batteries require particularly attentive han-
dling. This applies to charging, discharging as well as
for storage and other handling. Adherence to the fol-
lowing special specifications is necessary:
Special notices for charging LiIo-/LiPo batteries
from Graupner
WARNING:
• Since Graupner GmbH cannot supervise
the correct charging and discharging of
cells, the entire guarantee is void in cases
of improper charging or discharging.
• Only approved chargers with appropriate charging
cables may be used for charging LiIo-/LiPo bat-
teries. Any manipulation to the charger or charger
cables can lead to severe damage.
• The maximum charging capacity must be limited to
1.05 times the battery's capacity.
Example: 700 mAh battery = 735 mAh max. charg-
ing capacity
• Use only the outlet-charger included with the set
or a specially designed charger/discharger from
Graupner to charge and discharge LiIo-/LiPo bat-
teries, refer to page 18 or www.graupner.de.
8 Safety notices
• Ensure the settings for the number of cells or for
final charging voltage and final discharge voltage are
correct. Be sure to observe the operating instruc-
tions for your charger/discharger.
• Under these conditions Graupner LiIo-/LiPo bat-
teries can be charged with a maximum of 2 C (the
value 1 C corresponds to the cell capacity) charging
current. At a voltage of maximum 4.2 V per cell and
above, charging must continue a constant voltage
of 4.2 V per cell until charging current drops below
0.1 ... 0.2 A.
• The permissible temperature range for charging and
storing LiIo-/LiPo batteries is 0 ... +50 °C.
• Never leave batteries being charged unattended.
• The battery to be charged must be placed on a
non-combustible, heat resistant, non-conducting
surface during the charging process. Combustible
or readily ignited objects are to be kept away from
the charging configuration. Batteries may only be
charged under supervision.
• Avoid short circuit. Never pierce a LiIo/LiPo battery,
by doing it you may cause a short circuit and a fire,
explosion and other problems.
• Charging voltage over 4.20 V per cell must be
avoided absolutely as the cell would otherwise be
permanently damage and could cause a fire. In or-
der to prevent the over-charging of individual cells in
a pack, a cut-off voltage between 4.1 ... 4.15 V per
cell should be set to increase service life.
• Incorrect handling can lead to explosions, fire,
smoke and poisoning hazards. Furthermore, dis-
regard for instructions and warnings can lead to
performance losses and other defects.
• Before every use check the state of your batteries.
Damaged or ruined batteries or cells should not be
used.
• LiIo/LiPo batteries contain electrolytes and elec-
trolyte vapours which are unhealthy. Never enter in
touch directly with electrolytes. In case of contact
with eyes, skin or other parts of the body, wash
soon with a lot of water and call soon a doctor.
• The battery's capacity is reduced by every charge/
discharge cycle. Storing the battery at temperatures
which are too high or too low can also lead to a
gradual reduction in capacity. In model operation,
battery capacity drops to about 50 ... 80 % of new
battery capacity after about 50 charge/discharge
cycles – even though all charge/discharge rules are
followed. This is due in part to the high discharge
currents and inductive currents caused by motors.
• Never attempt to charge battery cells with the
wrong polarity. Abnormal chemical reactions
take place when batteries are charged with re-
versed polarity and the battery will be useless.
This can cause breaks, smoke and flames.
• Battery packs may only be connected in series or
parallel in exceptional cases as cell capacities and
charged state can differ too greatly. This is why the
battery packs we deliver are selected.
• LiIo-/LiPo batteries connected in series within
a pack may only be charged as a group if the
voltage of individual cells do not differ by
more than 0.05 V. The LiIo battery included
with the set is equipped with a special safety
circuit such that "compensation" for voltage
differences between individual cells, by way of
an otherwise typical balancer plug connection,
is not necessary.
• Individual battery cells and batteries are not toys
and must therefore not get into the hands of chil-
dren. Batteries/cells must be kept out of the reach
of children.