ATX UPSU Logo
10A UPSU Logo
20W UPSU Logo
PCB UPSU Logo
PC104 UPSU Logo
MIL UPSU Logo
Headerbild

About Supercapacitors

Advantages and disadvantages: Batteries vs. Ultracapacitors/Supercapacitors

Conclusion of Batteries vs. Ultracapacitors:

  • The most significant disadvantage of Ultracapacitors in compare to batteries is the low energy densitiy.
  • The most significant disadvantage of Batteries in compare to Ultracapacitors is the reduced cycle life, the reduced lifetime and the handling.

Note: Depending on battery type, the following specifications can differ.

Requirement Battery Ultracapacitor
Cycle life Low High
Lifetime Middle High
Time to charge Slow Very fast
Shelf life Not recommendet, note handling and care Uncomplicated
Stored energy (energy density) High Low
Power output (power density) Middle High
Low temperatures Output power high reduced (ESR much higher)
Capacity reduced strongly
Output power reduced after longer using in low temperatures (ESR increases)
High temperatures Reduced cycle life Capacity decreases when longer used at high temperature
Deep discharge Capacity decreases, safety risk possible uncomplicated down to 0V, no negative effects
Transport/International shipping Observe regulations Uncomplicated (no chemical energy storage)