Goedendag ;-) If you cannot but extend wires, then extend the motorwires, not the batterywires. Keep controller(s) close to battery(s). No need for extra input capacitors *Too long wires batteryside will kill ESC over time: precautions, solutions & workarounds - RCG* <https://www.rcgroups.com/forums/showthread.php?952523-too-long-battery-wires-will-kill-ESC-over-time-precautions-solutions-workarounds> * Contents *
- Two problems • Voltage spikes *higher* than battery voltage: transistor/FET/chip breakdown. • Current through input capacitors too high: *caps overheating/popping/exploding*. <https://upload.wikimedia.org/wikipedia/commons/thumb/c/c2/ElectrolyticCapacitorExploded.jpg/440px-ElectrolyticCapacitorExploded.jpg> • Nonsense Ron, I never had problems with long battery wires. - Example: four costly controllers consecutively cremated - Solution I: simply lengthen the motor wires instead - Solution II: add extra capacitors, rules of thumb Calculation spreadsheet - Capacitor type and polarity/orientation! - How & where (not) to add extra capacitors *All* capacitors as close to or on controller, do not distribute along batterywires. - DIY capacitor pack pictures - Capacitor & pack suppliers - Expert/manufacturer opinions & their rules of thumb They all say the same ... noise_reduction_101, switching_power_supply_design_101. - Cause, explanation, water hammer/knock analogy&video <http://www.youtube.com/watch?v=xoLmVFAFjn4>, theory References - Measurements & scope traces Vriendelijke groeten en wees voorzichtig, Ron • Without a watt-meter <http://www.wattflyer.com/forums/attachment.php?attachmentid=117297> you're in the dark ... until something starts to glow • • E-flight calculators • watt-meters <http://www.wattflyer.com/forums/attachment.php?attachmentid=117297> • diy motor tips&tricks <http://www.rcgroups.com/forums/showthread.php?t=240993> • Cumulus MFC <http://www.rmvc-cumulus.nl/> •
