Warranty - Modster FOLD 4K Betriebsanleitung

Manual
Charging
The rechargeable battery can be recharged at any time, it does not have a „lazy effect" and must never be unloaded manually.
If the battery is discharged below 3V, it must be charged with 0.1C up to approx. 3 - 3.6V. This ensures a gentle summons. The battery is then
charged up to the charging voltage of 4.2 V (exactly: 4.235 V) with 0.5 - 1 C. A charging current of 2C is also possible, but can shorten the life
of a battery (please note the manufacturer's instructions).
A must for the battery care are LIPOBALANCER. The use of such a device leads to a significantly longer running time of the LiPo batteries. A
balancer ensures that no overcharging takes place.
For a transfer it may, inter alia, also come when the cells of a pack drift over time, there are various causes for this. Deviations occur, for examp-
le, after prolonged storage due to different self-discharges or different charging effects after several charging cycles.
Example:
In the normal case, a pack with four parallel and four series-connected cells (4s4p) has a lower voltage than the outer ones, since they become
warmer during operation and thus have a higher self-discharge. After a few cycles, the difference is perhaps only 0.02 or 0.05 volts, but after
30 cycles one may already observe differences of 0.2 volts, depending on the cell and discharge depth.
If this pack is now charged with a voltage difference of 0.2 Volt, the charger will charge as before also up to 16.8 Volt total voltage. However,
this voltage will no longer be evenly distributed among the four groups connected in series. The cells are now loaded, for example, as follows:
Group 1 - 4.3 volts, Group 2 + 3 - 3.1 volts, Group 4 - 4.3 volts
The cells with 4.3 volts charged cells age very fast, which is not immediately noticeable until the next flight.
In the unloading cycle, the individual groups are now unloaded accordingly. While the outer cells are e.g. Still have a charge of 3.6 volts, the
inner cells lie at approximately deep discharged 2.4 volts.
With an LiPo balancer, this misconduct can be circumvented by balancing the cells of the pack
(Lifetime is thereby extended). In addition, the user is informed of the state of each cell during each charging process, as a result of which
expensive measurements are omitted.

16. Warranty

The statutory warranty covers manufacturing and material defects in normal use. We do not accept liability for consequential damages!
The guarantee / warranty does not include:
- Damage caused by failure to observe the safety instructions or the operating instructions
- force majeure, boggling, incorrect handling
- Overuse or foreign influence
- unauthorized changes
- Damage caused by loss of control
- Influence of current, high voltage or lightning strike
- Normal wear and tear
- visual defects
- transport, shipping or insurance costs
Care and Maintenance
• Although the model is a highly complex system, maintenance is limited to just a few points.
• After every flight, check the model for visible damage and replace any defective parts immediately. This is especially true for rotating
parts.
• To minimize the wear of moving parts, they must be regularly cleaned and lubricated.
• Although the bearings are relatively insensitive to soiling, they must nevertheless be regularly checked and, if necessary, cleaned or
replaced.
• Silicone-free silicone oil is recommended for gears and open-running bearings, as is also used for the lubrication of open-running chains.
This will dry out after a few minutes, so no dirt or dust can stick to the freshly lubricated components.
• Before disassembling parts, it is advisable to take one or more photos (also from other viewpoints). This allows you to focus on any pro-
blems that may occur.
This instruction manual corresponds to the technical state at the time of printing.
Subject to change without prior notice.
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MODSTER FOLD 4K
www.modster.at