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AscTec Pelican (Batteries (Charing and discharging (3. Charging (1.Never…
AscTec Pelican
Safety notes
A system check before every flight should be performed according to the reflight checklist supplied by AscTec(see Preflight Check).
Batteries
Battery insructions
Whenever possible store the batteries half charged at storage voltage of 11.4 V and only charge them completely shortly before the next flight.
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Charing and discharging
1.General guide lines
2.Never charge batteries unattended and monitor the charging process When charging Li-Po batteries you should always remain nearby to monitor the charging process and react to potential problems that may occur.
3.If at any time you witness a battery starting to balloon or swell up, discontinue the charging process immediately. Disconnect the battery and observe it in a safe place for an appropriate period of time. Continuing to charge a battery that has begun to swell will result in fire. Likewise, never use a battery if you find it swollen or ballooned.
4.NEVER continue to charge LiPo batteries if the charger fails to recognize full charge. Overheating or swelling of the LiPo cells is an indication of a problem and the battery should be disconnected from the charger immediately and placed in a fireproof location.
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2. Before charging
1.Make a visual inspection of the pack. Look for any damaged leads, connectors, broken heat-shrink, extreme swelling of cells, or other irregularities. Do not use it if you find any of the above issues with your pack.
2.If any damage to the pack or leads is found, or the voltage is significantly less for your pack than specified below, do not attempt to charge or fly the pack; contact Ascending Technologies directly as soon as possible
3. Charging
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2.Charge in an isolated area, away from other flammable materials. Use the AscTec LiPo safe-bags or a non-flammable case for charging.
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- Do not charge batteries packs in series. Charge each battery pack individually. Failure to do so may result in incorrect battery recognition and charging functions. Overcharging may occur and fire may be the result.
5.Be sure you use the right connector for all charging. There are two sets of lead wires on this battery. The one with the BID-chip is always used exclusively for balancing the cells. The one with the green connector is used for charging.
6.When selecting the cell count or voltage for charging purposes (not needed with the ROBBE charger), select the cell count and voltage as it appears on the battery label. Selecting a cell count or voltage other than the one printed on the label can cause fire. As a safety precaution, please confirm the information printed on the battery is correct.
7.You must check the pack voltage before charging after flight. Do not attempt to charge any pack if the voltage per cell is less than 3.3V. Do not charge a 3 cell pack if below 9.9V.
8.You must select a charge rate current that does not exceed 1C (1C = one time the capacity of the battery). A higher setting will reduce the battery life span and may cause fire. The below examples are calculated at 1 x capacity of pack. a battery with 6250 mAh must be charged at or below 6.2 A
4.Discharging
To reach the maximum lifespan of your AscTec Li-Po batteries, please don‘t discharge them with high loads for the first few flights. Do not discharge a battery to a level below 3.5V per cell under load. Deep discharging a battery cell below 3.5V can reduce battery performance or even destruct them.
Storage
Never leave the LiPo batteries on a full charge for more than 2-3 days. For longer intermissions you need to discharge the batteries to 11.4 V (3.8 V per cell) for safe storage until you are ready to use the battery again. Recharge the batteries right before the next mission.
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