Originally Posted by CharlieJ
I have read the Owner's book on BMS and received quotes for some of my projects. They appear to produce an excellent, feature rich product. It is my opinion that, for fractional C house banks, and possibly even propulsion
banks < 100VDC, that we do not require all of the features and complexity.
+1 ! Nice peace of gear
but not aimed at off grid/house bank use...
The House Power
BMS is a great piece of gear
for the money
. There are some tweaks I would like to see but for the money
it really can't be beat.
One feature I really like is that it will NOT shunt balance if you are using the HVC feature. Shunt balancing is rather controversial and its necessity in a fractional "C" system, kept OUT OF THE KNEES, is debatable. Start pushing charging
votlages above 14.2V and the need for balancing can become a necessity...
The HP BMS HVC breaks the charge sources away at 14.2V. This means it is best not to set any charge source higher than 14.0V. Even the best regulators, controllers & chargers can have a .2V swing...
You need to manually disable HVC in order to shunt balance... I find this to be a good safe measure.
Genasun builds one of the nicest BMS systems however they no longer sell them for DIY
There are lots of "fancy" BMS systems out there but most are geared towards high voltage multi-cell banks not off grid fractional "C" use banks....