GRAUPNER mx-20 Hott, Programming Manual

Page: 9 / 296

9 Safety notices
supervision. If a suitable quick charger is not available
on which the exact charging current can be set, the
battery can be charged by standard charging according
to the 1/10 C-method, see example above.
Whenever possible, transmitter batteries should
charged with the 1/10 C method because of the
differing charge states of the cells. However,
charging current may never be allowed to exceed
the maximum permissible rate specifi ed in the given
transmitter's instructions.
Quick charging
If your charger offers this option then set the delta •
peak charge cutoff voltage to 5 mV per cell. However,
most chargers are set to a fi xed value of 15 …
20 mV per cell so they can be used for both NiCd
batteries as well as NiMH batteries If in doubt, fi nd
out if your charger is also suitable for NiMH batteries
by referring to the charger's operating instructions
or consulting a dealership. If you are unsure, charge
your batteries at half of the specifi ed maximum
current rate.
Discharge
All batteries sold under the Graupner and GM-Racing
trade names are, depending on battery type, suitable for
a continuous maximum current load of 6 … 13 C (check
the manufacturer's data). In general, the higher the
continuous current load, the lower the battery's service
life will be.
Use your battery until its performance degrades or •
the under-voltage warning sounds.
Attention:
A cell voltage of 1.2 V should not be underrun during
a long storage period. If necessary, charge the
battery before putting it into storage.
Refl ex charging and charge/discharge programs
•
unnecessarily shorten a battery's service life and are
only useful in checking battery quality or to "revive"
old cells. It is also meaningless to charge/discharge a
battery before using it. The exception to this is if your
intention is to check the battery's quality.
Disposal of used batteries
Some countries have laws requiring that all used
batteries be turned over to an authorized collection
center.
Disposing of batteries along with common household
garbage is forbidden. Old batteries can be turned into
communal collection centers for disposal at no charge
or they can be returned to one of our dealerships or
anywhere else where batteries of that given type are
sold. Used batteries we have delivered can also be sent
back to us, at your cost, through the mail. Use the return
address below:
Graupner GmbH & Co. KG
Service: Used batteries
Henriettenstr. 94 - 96
D-73230 Kirchheim unter Teck
This represents an essential contribution to
environmental protection.
Caution:
Damaged batteries require among other things, special
packaging, because they are very toxic!