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© 2014 Troy Built Models, Inc. All Rights Reserved.
SECTION 8
HANDLING, SERVICE AND MAINTENANCE
PROPELLER CARE
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Propellers must be checked each flight for nicks or cracks
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Propellers are designed to last indefinitely if they do not impact dust, dirt or more.
BATTERY CARE AND USE
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Refer to instruction sheet included from the battery manufacturer. Typical information
follows.
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Batteries are highly flammable and can explode, especially when fully charged. Improper
charging, vibration, impact, high discharge, etc. can lead to explosion and fire. Batteries must
be charged under constant supervision and using proper precautions.
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Batteries fully charged must be handled with extreme care.
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Any battery which puffs up is considered damaged and must not be used. It is in a dangerous
state. Never charge a puffed up battery.
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Any battery which holds less than 80% of its rated capacity should be discarded.
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Cycle test each battery after every 50 cycles or if a battery is suspected to have lost as
significant amount of its capacity to determine the current capacity.
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Properly dispose of batteries. First discharge the battery fully using a battery cycler. Bring to a
recycler such as a home improvement store.
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Always charge flight batteries under “balance” mode.
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Flight Battery Recommended Charge Rate: 1C which takes approximately 1 hour to charge
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Flight Battery Maximum Charge Rate: May exceed 5C. Charge rates higher than 1C will
decrease life cycles. Maximum charge rating per the manufacturer will provide 300+ cycles.
Use the lowest charge rate which is practical.
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Battery Rest Time between discharging and charging: 30 minutes minimum, 1 hour
maximum.
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Do not charge if the battery is more than 2°C warmer than ambient, especially if the
temperature is above 20°C. The outer surface is cooler than the inner core after use. Damage
will occur when charging a warm battery.
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Recommended Battery Discharge Amount: 80%. Using more of the capacity of the battery
will decrease the life cycles
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As battery temperature approaches freezing the capacity of Lithium Polymer batteries
decrease. Keep warmer than 5°C before installing into the UV (unmanned vehicle).
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Battery capacity decreases at higher discharge rates. Using more batteries decreases the
discharge rate of each battery thereby extending individual battery capacity slightly.
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Lower discharge rates improve the life cycles.
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Batteries are rated at greater than 300 life cycles. 1,000+ life cycles are possible.
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Batteries must not be stored above 60% charged state for extended periods.
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Batteries should be stored below 25°C for extended periods
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Store batteries between 40% - 60% charged state. Fully charge just before use.
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Fully charged batteries which are not to be used within 24 hours should be discharged to 40%
- 60% charged state using the battery discharger.
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Using more than one battery at a time requires the proper wiring harness so that the voltage is
no more than 25.2V. Over voltage will cause serious damage to electrical equipment.