## Low Temperature Ultracapacitor

**Question:**

# What is the failure mode?

**Answer:**

Failure is an increase of rated ESR by 100% and a decrease of Rated Capacitance by 20%.

**Question:**

# What is the maximum operating voltage?

**Answer:**

Currently 2.0V.

**Question:**

# What is the lowest recorded operation temperature?

**Answer:**

-55°C.

**Question:**

# Is the energy storage linear with voltage?

**Answer:**

Energy storage scales exponentially with voltage, equation for energy is 1/2 C*V^2.

**Question:**

# What are the expected leakage currents at various temperatures?

**Answer:**

a) -55C: < 1 uA

b) 85C: < 30 uA

**Question:**

# What is the minimum voltage to discharge the capacitors?

**Answer:**

0V.