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7. Information on Batteries and Rechargeable Batteries
Although use of batteries and rechargeable batteries in everyday life is a matter of course today, there are
many dangers and problems. In particular in LiPo/LiIon batteries with high energy content (as compared to
conventional NiMH batteries), various provisions must be complied with to avoid danger of explosion and
fire.
Therefore, always observe the following information and safety notes in handling of batteries and rechar-
geable batteries.
• Keep batteries/rechargeable batteries out of the reach of children.
• Do not leave any batteries/rechargeable batteries lying around openly. There is a risk of batteries being swallowed
by children or pets. If swallowed, consult a doctor immediately!
• Batteries/rechargeable batteries must never be short-circuited, disassembled or thrown into fire. There is a danger
of explosion!
• If you do not use it for any extended period of time (e.g. during storage), remove the batteries/rechargeable batteries
inserted in the transmitter to prevent damage from leaking batteries/rechargeable batteries. Disconnect the drive
battery from the speed controller completely and take it out of the vehicle.
• Leaking or damaged batteries/rechargeable batteries can cause chemical burns to skin at contact; therefore, use
suitable protective gloves.
Liquids leaking from batteries/rechargeable batteries are chemically highly aggressive. Objects or surfaces that
come into contact with them may take severe damage. Therefore, keep batteries/rechargeable batteries in a suita-
ble location.
• Do not recharge any normal, non-rechargeable batteries. There is a risk of fire and explosion! Charge only rechar
-
geable batteries intended for this; use suitable chargers.
• Always observe correct polarity of batteries/rechargeable batteries and the connection of a rechargeable drive
battery (note plus/+ and minus/-) when inserting the batteries.
• Never mix batteries and rechargeable batteries! Use batteries or rechargeable batteries, e.g. for the transmitter.
• Always replace the entire set of batteries or rechargeable batteries in the transmitter. Never mix fully charged bat
-
teries/rechargeable batteries with partially discharged ones. Always use batteries or rechargeable batteries of the
same type and manufacturer.
• A battery charger corresponding to battery technology (NiMH, LiPo....) is required. Never leave, e.g., LiPo batteries
unattended in an NiMH charger! There is a risk of fire and explosion!
• A suitable balancer is required for charging multi-cell LiPo batteries (usually integrated in good LiPo chargers). A
balancer (frequently also referred to as an equalizer) prevents overcharging of a single LiPo cell by inspection of the
individual cell voltages.
When overcharging a LiPo cell (max. cell voltage 4.24 V), the LiPo battery may bloat or even catch fire or explode!
• Only charge intact and undamaged batteries. If the outer isolation of the rechargeable battery or battery housing is
damaged or the battery is deformed or bloated, it must not be charged. There is acute danger of fire or explosion!
• Never charge the battery right after use. Always leave the rechargeable batteries to cool off first (at least 5 - 10
minutes).
• Remove the battery from the model for recharging.
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