Battery Warnings And Guidelines - E-flight Blade SR RTF Airframe Instruction Manual

Battery Warnings and Guidelines

The 3S 11.1V 1000mAh Lithium Polymer Battery Pack (EFLB0997) included with your Blade SR features
Charge Protection Circuitry and Balance Charging via the included 3S 11.1V Lithium Polymer Balancing
Charger (EFLC3105). However, to help ensure a safe charge every time, you MUST read the following
safety instructions and warnings before handling, charging or using the Li-Po battery pack.
Note: Lithium Polymer batteries are significantly more volatile than the alkaline, Ni-Cd or
Ni-MH batteries used in RC applications. All instructions and warnings must be followed
exactly. Mishandling of Li-Po batteries can result in fire.
By handling, charging or using the included Li-Po battery you assume all risks associated with lithium
batteries. If you do not agree with these conditions, return your complete Blade SR model in new, unused
condition to the place of purchase immediately.
• You must charge the included 3S 11.1V 1000mAh Li-Po battery pack in a safe area away from flammable
materials.
• Do not charge the battery when installed in the helicopter.
• Never charge the battery unattended. When charging the battery you should monitor the charging process
and react to potential problems that may occur.
• After flight, the battery must be cooled to ambient temperature before charging.
• You MUST use the included 3S 11.1V Li-Po Balancing Charger ONLY. Failure to do so may result in a
fire causing personal injury and/or property damage. DO NOT use an Ni-Cd or Ni-MH charger.
• If at any time during the charge or discharge process the battery begins to balloon or swell, discontinue
charging or discharging immediately. Quickly and safely disconnect the battery, then place it in a safe, open
area away from flammable materials to observe it for at least 15 minutes. Continuing to charge or discharge
a battery that has begun to balloon or swell can result in a fire. A battery that has ballooned or swollen even
a small amount must be removed from service completely.
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• In the event of a crash, you must quickly and safely disconnect and remove the battery from the model, then
place it in a safe, open area away from flammable materials to observe it for at least 15 minutes.
• Store the battery at room temperature at approximately ½ charge (3.8V per cell; 11.4V for a 3S battery
pack) for best results.
• When transporting or temporarily storing the battery, the temperature range should be from 40–120 degrees
Fahrenheit. Do not store the battery or model in a car or direct sunlight whenever possible. If stored in a hot
car, the battery can be damaged or even catch fire.
• Do not over-discharge the battery. Discharging the battery too low can cause damage to the pack
resulting in reduced performance and duration.
Li-Po cells should not be discharged to below 3V each under load. In the case of the 3S Li-Po
packs used for the Blade SR, you will not want to allow the battery to fall to below 9V during flight.
The Blade SR's 2-in-1 control unit does not feature a voltage cutoff of any type, so we suggest
that you be extremely aware of the power level of the Li-Po battery pack during flight. If at any
time the helicopter begins to require more throttle than typical to maintain hover or flight, or has
lost significant power, you must land the helicopter and power the motors down IMMEDIATELY to
prevent over-discharge of the Li-Po battery pack. If you continue to run the motors after noticing
a loss in power, it is possible to discharge the Li-Po battery pack too far, causing permanent
damage to the pack.
Over-discharge of the Li-Po battery pack can result in shortened flight times, loss of power output
or failure of the pack entirely.
If you have any further questions or concerns regarding the handling, charging and/or use of the included Li-Po battery
pack, please contact Horizon Hobby's Product Support Team at 877-504-0233, Horizon Hobby UK at
+44 (0) 1279 641 097 or Horizon Technischer Service, Germany at +49 4121 46199 66.
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