from TelepathicWalrus@lemmy.world to askelectronics@discuss.tchncs.de on 18 Sep 2025 19:26
https://lemmy.world/post/36112123
Hey!
I have made a 24v supercapacitor bank which is made of 12 2.7v 20F supercapacitors, balancing resistors, charge resistor and a diode to bypass the charge resistor when in discharge mode.
The mistake was made when it was connected to a mean well LRS-100-24 which is a 24v 100W supply. When I powered it up the other control board was starting and stopping - the power supply was current limiting. Im not sure what voltage would have been applied to the supercapacitors but I think it wasn’t high as the microprocessor on the other board was constantly resetting so the supercaps were not charged.
This happened for a maximum of 60s until I realised what was wrong and disconnected the caps.
My question is - will the capacitors be damaged from this event? Any help is very much appreciated.
Thanks
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