| Lithium
Polymer Batteries: Once you receive your battery or battery
pack, test it for low voltage condition before you charge or discharge the battery.
There is absolutely no warranty for any Lithium Polymer battery or battery pack
once you have placed it on a charger. Once you use or discharge a Lithium Polymer
battery or battery pack there is no warranty. As used in R/C applications discharge
rates exceed the manufacturer's specified maximum rates for these cells. Therefore,
the use of Lithium Polymer batteries in radio-controlled models is to be considered
experimental, and there is no warranty, expressed or implied, with respect to
the capacity, life in cycles, storage, or discharge characteristics of cells in
RC use, nor any other use nor aspect. We strongly suggest you use a safety guard
component with these cells. Lithium Polymer batteries hold a huge amount of energy
and must be respected. Since we cannot guarentee customers will follow the proper
safety precautions and use an appropriate well functioning charger with the correct
settings, we cannot accept any responsibility for the use of Lithium Polymer battery
products. Therefore, Hobbies Unlimited LLC assumes no responsibility for the use
of Lithium Polymer battery products by our customers. Your use of this product
means you accept our terms and you are fully responsible for any consequences.
Emergency 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 precaution in their use. In spite
of this, many fires have occurred as a result of the use of lithium polymer batteries
causing loss of models, automobiles, and other property. Homes, garages and workshops
have also burned. A lithium polymer 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: * Store, and charge in a fireproof container, never in
your model. * Charge in a protected area away from combustibles. Always
stand watch over the charging process. Never leave the charging process unattended.
* 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. * 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 polymer cells. Never use chargers designed for Nickel
Cadmium batteries. * 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 to a safe place outside as they
could erupt into flames. MOST IMPORTANT: NEVER PLUG A BATTERY AND LEAVE
IT TO CHARGE UNATTENDED OVERNIGHT. Serious fires have resulted from this practice.
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 batteries. The consequence of this practice can be very serious,
resulting in major property damage and/or personal harm. Safety
Committee
Academy of Model Aeronautics
5161 E Memorial Dr.
Muncie, IN
47302 Indemnity Agreement: To the
fullest extent allowed by Law, I hereby agree to release, indemnify, and hold
harmless Hobbies Unlimited LLC, any of it's employees, owners, agents, and representatives,
Richard and Gabriela Sydow, and all manufacturers and distributors of the radio
controlled product, batteries and components, which are the subject of this agreement
from any and all liability for damage or injury to myself or any other person
or property, which may result from the selection, installation, maintenance, adjustment,
inspection, and use of these radio controlled products; and that I waive any right
to present any legal claim or suit against these persons, whether based on negligence,
breach of warranty, breach of contract, claim or any other legal theory. This
document is a legally binding contract which supercedes any other agreements or
representations by or between the parties for which is intended to provide a comprehensive
release of liability, but is not intended to assert any claims or defenses which
are prohibited by Law.
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