Futaba 10J F4109 Data Sheet

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Use only the Futaba special charger included with this set or other chargers approved by 

Futaba to charge the NiMH batteries in the T10J transmitter included with this set.

It is important to understand the operating characteristics of NiMH/NiCd batteries.Always read 

the specifications printed on the label of your NiMH/NiCd battery and charger prior to use. 

Failure to follow the proceeding precautions can quickly result in severe, permanent damage to 

the batteries and its surroundings and possibly result in a FIRE!

Do not attempt to disassemble NiMH/NiCd packs or cells. 
Do not allow NiMH/NiCd cells to come in contact with moisture or water at any time. 
Always provide adequate ventilation around NiMH/NiCd batteries during charge, discharge, while in 

use, and during storage.
Do not leave a NiMH/NiCd battery unattended at any time while being charged or discharged.
Do not attempt to charge NiMH/NiCd batteries with a charger that is NOT designed for NiMH/NiCd  

batteries, as permanent damage to the battery and charger could result.
Always charge NiMH/NiCd batteries in a fireproof location. Do not charge or discharge NiMH/NiCd  

batteries on carpet, a cluttered workbench, near paper, plastic, vinyl, leather or wood, or inside an R/

C model or full-sized automobile! Monitor the charge area with a smoke or fire alarm.
Do not charge NiMH/NiCd batteries at currents greater than the “1C” rating of the battery (“C” 

equals the rated capacity of the battery).
Do not allow NiMH/NiCd cells to overheat at any time! Cells which reach greater than 140 degrees 

Fahrenheit (60°C) should be placed in a fireproof location.
NiMH/NiCd cells will not charge fully when too cold or show full charge.
It is normal for the batteries to become warm during charging, but if the charger or battery becomes 

excessively hot disconnect the battery from the charger immediately!! Always inspect a battery 

which has previously overheated for potential damage, and do not re-use if you suspect it has been 

damaged in any way. 
Do not use a NiMH/NiCd battery if you suspect physical damage has occurred to the pack. Carefully 

inspect the battery for even the smallest of dents, cracks, splits, punctures or damage to the wiring 

and connectors. DO NOT allow the battery’s internal electrolyte to get into eyes or on skin—wash 

affected areas immediately if they come in contact with the electrolyte. If in doubt, place the battery 

in a fire-proof location for at least 30 minutes.
Do not store batteries near an open flame or heater.
Do not discharge NiMH/NiCd batteries at currents which exceed the discharge current rating of the 

battery.
Always store NiMH/NiCd cells/packs in a secure location away from children.