FUTABA 6J Instruction Manual page 17

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causing a crash. To erase any potential memory, cycle the NiCd batteries by discharging, then charging
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transmitter sticks until the servos are moving very slowly, indicating that the battery is discharged. Cycling
should be done every one to two months, even during the winter or periods of long storage. If using a
cycler with a readout, note the capacity after the batteries have been cycled. If there is a noticeable drop in
capacity the batteries should be replaced.
Note: Charging your batteries with a Futaba A/C battery charger is always safe. However, fast charging with
an aftermarket charger is acceptable as long as you know how to properly operate the charger. Never charge
at a rate higher than suggested by the manufacturer. If not done correctly, fast charging can damage the
batteries.
Battery Care and Precautions
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and/or receiver battery packs. These are included to serve only as general guidelines, and are not intended
to replace or supersede the information provided by the battery and/or charger manufacturer. For complete
information, please refer to the instructions that are included with the battery pack(s) and/or chargers that
accompany the products purchased.
‡ Do not allow children to charge battery packs without adult supervision.
‡ Do not charge battery packs that have been damaged in any way. We strongly suggest frequent inspection
of the battery packs to ensure that no damage has occurred.
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and allow to cool.
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‡ Do not deep cycle NiMH batteries as permanent damage could result.
‡ Never charge batteries on a surface that may become hot, or may be impacted by the heat.
‡ Immediately end the charging procedure if either the batteries or charger itself become overly hot.
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packs with some voltage remaining on the cells (refer to battery supplier).
‡ NiMH cells have a self-discharge rate of approximately 20-25% (compared to 15% for NiCd batteries). It is
important to recharge NiMH batteries immediately prior to use.
‡ Never connect the battery in reverse. Reverse connection will cause the battery to overheat or will damage
the inside of the charger.
‡ Do not add an additional charge after charging.
‡ Never charge with a current exceeding the nominal capacity (lC) of the rechargeable battery.
‡ If a battery is charged with a current exceeding 1C, the battery will overheat and deteriorate.
‡ Do not connect two battery packs or more to one output terminal.
‡ Avoid extremely cold and hot places and the direct sunlight when you charge batteries.
‡ It is recommended to perform charging within the 10 ~ 30°C (50-85°F) range. Otherwise, it may cause
abnormal charging and overheat.
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