6 | Product Support3.4.2.2 Total discharge> Since discharging below 3.0 V per cell would lead to permanent damage of therechargeable battery pack, this total discharging is to be prevented as far as possible.> For safety reasons, programmable cruise controls/flight control systems should be setin such a way that the undervoltage detection responds already at a voltage of 3.0 Vper cell (Example: 3 cells = 9.0 V cut-off voltage). Alternatively, the optical undervoltagedisplays are also recommended.3.4.2.3 Correct dimensioning> As the current drawn rises, the battery pack warms and the usable capacity is lowered.The ideal operating temperature during discharge is between +20 and +40 °C and mustnot exceed +60 °C even under extreme load.> The maximum short-time current that can be loaded to the battery pack is stated inthe technical data sheets or can be read directly from the battery pack. The value “C”always refers to the capacity value of the respective battery pack.Example:A battery pack with a capacity of 2100 mAh and ”20 C” canbe loaded with 2100 mA x 20 = 42 A maximum.> However, the maximum permissible continuous current is clearly lower. If there are noprecise manufacturer’s specifications, the battery pack should not be loaded with morethan approx. 50 % of the maximum permissible surge current over a long term.3.5 Miscellaneous> Consult an expert when in doubt about operation, safety or connection of the device.> Maintenance, modifications and repairs are to be performed exclusively by an expertor at a qualified shop.4. PRODUCT SUPPORTVisit http://www.rclogger.com/index.php/contact-us or call +852 2559 2662 for productsupport. Additionally visit our support forum at http://rclogger.com/forum.5. LEGAL NOTESThis information is published by CEI Conrad Electronic International (HK) Limited, 18thFloor, Tower 2, Nina Tower, No. 8 Yeung Uk Road, Tsuen Wan, New Territories, Hong Kong.All rights including translation reserved. Reproduction by any method, e.g. photocopy,microfilming, or the capture in electronic data processing systems require the prior writtenapproval by the editor. Reprinting, also in part, is prohibited. The information reflectthe current technical specifications at time of print. We reserve the right to change thetechnical or physical specifications.© 2013 by CEI Conrad Electronic International (HK) LimitedV1-1213-02-JH(1)