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When the drive battery is nearly empty, the vehicle will slow down and may not respond properly to the transmitter.
The drive battery in the vehicle powers not only the motor via the speed controller, but also the receiver and the
steering servo. A BEC (“Battery Eliminator Circuit”, an electronic circuit for direct power supply of the receiver
without an additional receiver battery) is used for this purpose.
If the drive battery voltage is too low, the receiver voltage may drop and the vehicle may not respond to transmitter
commands. In this case, stop the vehicle immediately (turn off the vehicle, disconnect the drive battery from the
vehicle, and switch off the transmitter). Replace/recharge the drive battery as necessary.
The motor, drive, speed controller and drive battery heat up during use. Take a break of at least 5 minutes before
changing the drive battery.
Allow the drive battery to cool down completely before charging.
Do not touch the motor, the speed controller or the rechargeable battery until they have cooled down. Burn hazard!
9 Battery safety information
Although batteries and rechargeable batteries are very useful in our everyday life, nevertheless they
present numerous safety hazards. Compared with conventional NiMH rechargeable batteries, lithium re-
chargeable batteries have a high energy content. For this reason, it is essential to comply with safety
regulations to prevent the risk of fire or explosion.
Always observe the following safety information when handling batteries and rechargeable batteries.
9.1 General information
Keep batteries/rechargeable batteries out of reach of children. Batteries/rechargeable batteries must be kept out
of the reach of children.
Do not leave batteries/rechargeable batteries lying around, as they present a choking hazard for children and
pets. Seek immediate medical advice if a battery is swallowed!
Batteries/rechargeable batteries must never be short-circuited, disassembled or thrown into the fire. This may
cause an explosion!
When handling leaking or damaged batteries/rechargeable batteries, always use suitable protective gloves to
avoid burning your skin.
Liquids leaking from batteries/rechargeable batteries are highly aggressive chemicals. Objects or surfaces com-
ing into contact with these liquids may be severely damaged. Therefore, keep batteries/rechargeable batteries in
a suitable location.
Do not attempt to recharge disposable, non-rechargeable batteries. This may cause a fire or explosion! Non-
rechargeable batteries are only designed to be used once and must be disposed of properly when they are empty.
Only recharge compatible rechargeable batteries and ensure that you use a suitable battery charger.
If you do not plan to use the model for an extended period (e.g. during storage), remove the batteries/recharge-
able batteries from the transmitter to prevent them from leaking and causing damage. Disconnect the drive battery
and remove it from the model. Keep the batteries and drive battery in a cool, clean, dry place out of the reach of
children.
Install a smoke detector in the room. Batteries present a fire hazard and may generate toxic fumes. This applies in
particular to model batteries, which are subjected to high charging/discharge currents and vibrations.
Always exchange the entire set of batteries or rechargeable batteries in the transmitter. Do not mix full batteries/
rechargeable batteries with half-full ones. Always use batteries or rechargeable batteries of the same type and
from the same manufacturer. Never mix batteries with rechargeable batteries!
