• Remove the battery from the model for recharging.
• Never place the charger and rechargeable battery on a heat-resistant, inflammable surface.
• Charger and rechargeable batteries heat up when charging. Leave enough distance between the charg-
er and the rechargeable battery, never place the rechargeable battery on the charger. Never cover the
charger and the battery. Do not expose the charger and rechargeable battery to any high/low tempera-
tures or to direct solar radiation.
• Never leave batteries unattended while charging them.
• Regularly recharge the rechargeable batteries (about every 2 - 3 months). Otherwise, self-discharge of
the batteries may cause deep discharge. This renders the rechargeable batteries useless!
NiMH rechargeable batteries (except for specific builds with low self-discharge) lose their energy even
within a few weeks.
LiPo batteries usually retain their energy for several months; however, they are damaged permanently
by deep discharge and cannot be used anymore.
• Never use a too-high charging current. Observe the manufacturer information on ideal or maximum
charging currents.
• Remove the battery from the charger when it is fully charged.
• Charges and rechargeable batteries must not get damp or wet. There is a danger to life from electric
shock; there also is a danger of fire and explosion from the rechargeable battery!
Rechargeable batteries with lithium technology (e.g. LiPo batteries) in particular are very susceptible to
moisture due to the chemicals they contain!
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