new power storage gizmo

[BruceM]

Hi Casey,
A shunt regulator is a regulator which limits and individual battery's voltage by shunting some charge current through a load resistor and power transistor.
My custom 120VDC charge regulation system is based on higher voltage series string chargers developed by Manzanita Power for early AGM battery powered electric cars. While charged in series, each battery is individually regulated by it's own shunt regulator.  A similar general approach is used in today's higher voltage lithium battery banks in cars.

Tom, if it ever gets time to replace that stove, look at the Peerless Premier line.  They are electric spark lit, either AC or battery (12v). Zero phantom load.

Best Wishes,
Bruce

[deeiche]

SNIP
I was dissapointed to find the Tesla batteries output 450vdc which rules them out for our 48vdc system. Although it looks like a LiFePo bank could be built for around the same $.

Ahhh, sounds like they are designed for commercial data center use.  IT data centers are moving to hi voltage DC systems.  It is somewhere around the corner for our data center.  The electrical infrastructure folks are also planning a natgas fuel cell backup system.