Graupner Hendheld RC 2.4 GHz No. of channels: 12 33124 Data Sheet

9

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.

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.