I bought six supercapacitors and connected them in series to get a total voltage of 16.2 VDC.
The product’s Mouser No is 723-BCAP0450P270S18, Mfr. No is BCAP0450 P270 S18, the datasheet can be found on this link:
The problem is that I applied reversed voltage to charge the supercapacitor bank. The supercapacitors were charged (starting with 10A charging current) until reaching their optimal voltage (2.7 VDC each) and the day after, I discharged them using resistors. This happened three to four times. They do not seem to have suffered any damage and no problem occurred during this procedure, so I would like to ask:
- Might the supercapacitors have been internally damaged and they are dangerous to use?
- If not, should I keep charging them using reversed polarity or should I apply the correct polarity to charge them again?