Alien Aircraft Corp AE-502 Schnellstart-Handbuch - Seite 6
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Seite druckenNOTES ABOUT THE ARMING SWITCH:
*YOU MUST USE THE ARMING SWITCH. THIS IS AN IMPORTANT SAFETY ITEM.
*THE PLUG SHOULD ONLY BE INSERTED IN THE ARMING SWITCH IMMEDIATELY PRIOR TO FLIGHT.
*ALWAYS REMOVE THE PLUG FROM THE ARMING SWITCH IMMEDIATELY AFTER EVERY FLIGHT.
*THE PLUG SHOULD NEVER BE INSERTED IN THE ARMING SWITCH WHILE CHANGING OR INSTALLING THE BAT-
TERY IN THE MODEL.
*BE ABSOLUTELY SURE THAT THERE ARE NO OBJECTS, CLOTHING, BODY PARTS, ETC. ANYWHERE NEAR THE
PROPELLER AND THAT THE MODEL IS SECURELY RESTRAINED BEFORE INSTALLING THE PLUG IN THE ARMING
SWITCH.
LIPO BATTERY SAFETY ALERT
Lithium Battery Fires
Lithium batteries are becoming very popular for powering the control and power systems in our models. This is true
because of their very high energy density (amp-hrs/wt. ratio) compared to NiCd's or other batteries. With high energy
comes increased risk in their use. The principal risk is FIRE which can result from improper charging, crash damage, or
shorting the batteries. All vendors of these batteries warn their customers of this danger and recommend extreme caution
in their use. In spite of this, many fires have occurred as a result of the use of Lithium Polymer batteries resulting in loss
of models, automobiles, and other property. Homes and garages and workshops have also burned. A lithium battery fire is
very hot (several thousand degrees) and is an excellent initiator for ancillary (resulting) fires. Fire occurs due to contact
between Lithium and oxygen in the air. It does not need any other source of ignition, or fuel to start, and burns almost
explosively. These batteries must be used in a manner that precludes ancillary fire. The following is recommended:
1. Store, and charge, in a fireproof container; never in your model.
2. Charge in a protected area devoid of combustibles. Always stand watch over the charging process. Never leave the
charging process unattended
3. In the event of damage from crashes, etc, carefully remove to a safe place for at least a half hour to observe. Physically
damaged cells could erupt into flame and after sufficient time to ensure safety, should be discarded in accordance with the
instructions which came with the batteries. Never attempt to charge a cell with physical damage, regardless of how slight.
4. Always use chargers designed for the specific purpose, preferably having a fixed setting for your particular pack. Many
fires occur in using selectable/adjustable chargers improperly set. Never attempt to charge Lithium cells with a charger
which is not specifically designed for charging Lithium cells. Never use chargers designed for Nickel Cadmium batteries.
5. Only use charging systems that monitor and control the charge state of each cell in the pack. Unbalanced cells can lead
to disaster if it permits overcharge of a single cell in the pack. If the batteries show any sign of swelling, discontinue
charging and remove them to a safe place outside as they could erupt into flames.
6. Most important: NEVER PLUG IN A BATTERY AND LEAVE IT TO CHARGE UNATTENDED OVERNIGHT. Seri-
ous fires have resulted from this practice.
7. Do not attempt to make your own battery packs from individual cells.
These batteries CANNOT be handled and charged casually such as has been the practice for years with other types of bat-
teries. The consequence of this practice can be very serious resulting in major property damage and/or personal harm.
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