Futaba 4GRS - Manual (Page 11)

Warning
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When the system will not be used for any length of time, store the system with NiMH/NiCd batteries
in a discharged state. Be sure to recharge the batteries prior to the next time the system is used.
If the batteries are repeatedly recharged in a slightly discharged state, the memory effect of the NiMH/NiCd battery may
considerably reduce the capacity. A reduction in operating time will occur even when the batteries are charged for the rec-
ommended time. (After discharge to 1cell E.V.=1V)
When the LiFe batteries will not be used for a long time, to prevent it from deteriorating we recom-
mend that it be kept in about the half capacity state instead of fully charged. Also be careful that
the battery does not enter the over-discharged state due to self-discharge.
Periodically (about every 3 months) charge the battery.
<NiMH/NiCd Battery Electrolyte>
The electrolyte in NiCd/NiMH batteries is a strong alkali. Should you get even the smallest amount of the electrolyte in
your eyes, DO NOT RUB. Wash immediately with water, and seek medical attention at once. The electrolyte can cause
blindness. If electrolyte comes in contact with your skin or clothes, wash with water immediately.
Do not store your R/C system in the following places.
- Where it is extremely hot or cold.
- Where the system will be exposed to direct sunlight.
- Where the humidity is high.
- Where vibration is prevalent.
- Where dust is prevalent.
- Where the system would be exposed to steam and condensation.
Storing your R/C system under adverse conditions could cause deformation and numerous problems with operation.
If the system will not be used for a long period of time, remove the batteries from the transmitter
and model and store in a cool, dry place.
If the batteries are left in the transmitter, electrolyte may leak and damage the transmitter. This applies to the model also.
Remove the batteries from it also to prevent damage.
Caution
Do not expose plastic parts to fuel, motor spray, waste oil or exhaust.
The fuel, motor spray, waste oil and exhaust will penetrate and damage the plastic.
Always use only genuine Futaba transmitters, receivers, servos, ESCs (electronic speed controls),
NiMH/NiCd batteries and other optional accessories.
Futaba will not be responsible for problems caused by the use of other than genuine Futaba parts. Use the parts specified
in the instruction manual and catalog.
Never use the R304SB-E in GP (Engine) models.
Receiver R304SB-E can be used only with EP car.
Other Precautions
<NiMH/NiCd/Li-ion Battery Recycling>
A used battery is a valuable resource. Insulate the battery terminals and dispose of the battery by taking it to a battery recycling center.