Superpower compared to an Optima Red Top Battery
We finally found something as good as Superpower!
The Optima Red battery is as good as (ok, ok, we admit it, better than) the Belleson Superpower. Unloaded noise is lower and dynamic performance is just as good.
Dynamic performance of a 2A current step was compared between a Superpower and an Optima Red Top 34 battery. You can see the specifications for this 38 pound (17.3 kg) behemoth here.
The measurement was made by using a power transistor to sink 2A from the Optima and from a SPJ78 12Vout Superpower in a similar manner to all the dynamic tests seen here on our site.
Superpower, 2A pulse
Superpower, 2A pulse magnified
Optima Red Top Battery, 2A pulse
An equivalently expanded view of the Optima transient. Rise time is almost instant, less than 1µsec, so fast that it overshoots with ringing. Ultimately the settling time is about the same as Superpower.