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7. Notes 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 with LiPo batteries with their high energy content (as compared to
conventional NiCd or NiMH batteries), various provisions must be complied with to avoid danger of explosi-
on and fire.
Therefore, always observe the following information and safety notes in handling of batteries and recharge-
able 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. In this case, see 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 driving
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. Wear suitable protective
gloves when handling them.
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.
• Never recharge normal (non-rechargeable) batteries. There is a risk of fire and explosion! Only charge rechargeable
batteries intended for this purpose. Use suitable battery chargers.
• Observe correct polarity when inserting batteries/rechargeable batteries or connecting the drive batteries (observe
plus/+ and minus/-).
• 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 the battery technology (NiCd, 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 (frequently also called an „Equalizer“). Good
LiPo chargers usually have this installed already; otherwise, an external balancer is required. The balancer prevents
overcharging of the LiPo cells by inspection and adjustment 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. In this case, there is immediate danger of
fire and explosion!
• Never charge the battery right after use. Always leave the rechargeable batteries to cool off first (at least 5 - 10
minutes).
• Remove the drive batteries from the model for recharging.
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