Futaba 4PX 2.4GHz FASST T-FHSS S-FHSS - Manual (Page 10)

Caution
Warning
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(Only when Ni-MH/Li-ion batteries are used)
Battery Handling Precautions
Never plug the charger into an outlet of other than the indicated voltage.
Plugging the charger into the wrong outlet could result in an explosion or fire.
Never insert or remove the charger while your hands are wet.
You may get an electric shock.
Do not use the transmitter's battery, HT5F1700B or FT2F1700BV2 as the receiver's battery.
Since the transmitter's battery has an overload protection circuit, the output power will be shut down when the high current
load is applied. This may result in runaway or fatal crash.
Do not use commercial AA size Ni-MH and Li-ion batteries.
Quick charging may cause the battery contacts to overheat and damage the battery holder.
Do not short circuit the battery terminals.
A short circuit across the battery terminals may cause abnormal heating, fire and burns.
Do not drop the battery or expose it to strong shocks or vibrations.
The battery may short circuit and overheat; electrolyte may leak out and cause burns or chemical damage.
When the model is not being used, always remove or disconnect the battery.
Leaving the battery connected could create a dangerous situation if someone accidentally turns on the receiver power
switch. Loss of control could occur.
Always check to be sure your batteries have been charged prior to operating the model.
Should the battery go dead while the model is operating, loss of control will occur and create a very dangerous situation.
To recharge the transmitter battery, use the special charger made for this purpose.
Overcharging could cause the battery to overheat, leak or explode. This may lead to fire, burns, loss of sight and many
other types of injuries.
Always keep the charger disconnected from the outlet while it is not in use.
Do this to prevent accidents and to avoid overheating.
When running (cruising), do not use the dry cell battery box at the transmitter.
The accessory dry cell battery box is for performance checks. Do not use it for other than performance checks. The dry cell
battery may be separated from the battery box contacts by shock and the power cut off. If the power is cut off while running
(cruising), a collision may occur. The use of Futaba a genuine NiMH or LiFe battery pack is strongly recommended.
Do not connect the charger when the battery is not connected.
A load will be applied to the circuit and the transmitter may be damaged.