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• Always use a suitable balancer when charging multi-cell lithium batteries (built into the supplied charger).
A balancer (often called an equaliser) prevents the overcharging of a single lithium battery cell by check-
ing the individual cell voltages.
Overchargingalithiumbatterycancausethebatterytoexpandorevenresultinareorexplosion.
• Only charge intact, undamaged batteries. Do not charge batteries if the external insulation or battery
housingisdamaged,orifthebatteryisdeformedorswollen.Thismaycauseareorexplosion!
• Never charge batteries immediately after use. Always allow them to cool down for at least 5–10 minutes.
• Always remove the drive battery from the model before charging it. Completely disconnect the drive
battery from the speed controller/vehicle.
• Place the charger and battery on a heat-resistant, non-combustible surface.
• Thechargeranddrivebatteryheatupduringthechargingcycle.Ensurethatthereisasufcientdistance
between the charger and battery. Never place the battery directly onto the charger. Never cover the
charger and the battery. Do not expose the charger or battery to high/low temperatures, direct sunlight
or moisture.
• Never leave batteries unattended when they are charging.
• Rechargeable batteries should be charged regularly (approx. once every 2 - 3 months) to prevent them
from overdischarging. This may result in permanent damage and render the batteries useless.
NiMH rechargeable batteries (except special batteries with a low self-discharge) lose their charge within
a few weeks.
Lithium batteries usually retain their charge for several months. However, if the batteries overdischarge,
this will result in permanent damage and render them useless.
• Lithium batteries should not be stored for prolonged periods at full charge. For best results, store lithium
batteries at 50 - 70% charge (or in accordance with the manufacturer's instructions).
• Neveruseanexcessivechargingcurrent.Observethemanufacturer'sspecicationsfortheideal/maxi-
mum charging current. The supplied charger provides an optimal current for the lithium drive battery.
• Disconnect the battery from the charger when it is fully charged.
b) Transmitter
• Usingrechargeablebatteriesinthetransmitterresultsinasignicantlyshorterbatterylifeduetothe
lower voltage (disposable batteries = 1.5 V, rechargeable batteries = 1.2 V).
If you still wish to use rechargeable batteries, we recommend using NiMH batteries with lower self-
discharge. For safety reasons, however, you should use disposable batteries and not rechargeable
batteries.
• Never mix disposable batteries with rechargeable batteries.
• Always exchange the entire set of batteries in the transmitter. Do not mix full batteries with half-full ones.
Always use batteries of the same type and from the same manufacturer.
• If you do not plan to use the vehicle for an extended period (e.g. during storage), remove the batteries
from the transmitter to prevent them from leaking and causing damage.