i have an all Victron off-grid system
Cerbo GX + Display
Victron DC shunt
(3) SimpliPhi 3.8 batteries @ 48V
I posess a basic knowledge set regarding electricity and such. i "designed" and installed this system myself - and it has performed flawlessly and to the specs which i targeted ...
QUESTION: What does "100%" mean ?
Can anyone explain (or point me to an article or treatise) that explains what the Cerbo Display unit is telling me as it relates to the "ACTUAL" status of my battery supply -
this morning i awoke early - just in time to hear a click and my entire system switched off/went dark...
(i subsequently figured out that my well pump had malfunctioned and run all night - fixed that problem promptly)
hmmmm. unplugged from my Victron system and dusted off my gen set so i could muddle through breakfast
as sun crested the horizon my Victron system started to "wake up"
one it had awoken - the display Showed 43.7 V (low) yet it also said "100%" in big happy numbers...
As i sit here and type this it is happily recharging, Voltage back up to 52.1V and its packin in 20A from the MPPT.
I can be awfully stupid - but i always remind people that i'm not as dumb as i look -
In the past i recall the %percentage%" battery level goin up and down with loads and charging -
how am i to understand batteries that are basically depleted low voltage (down to 43%) yet my fancy Cerbo Display is showing me an unwavering "100%".
What am i missing ? is there a way to understand this or is the display or shunt borked?
i would really like to be able to "trust the display" when it proclaims 78% that i actually have 78% of my usable Ah avail for all my fancy off grid amenities...
any thoughts or redirects to a knowledge base would be greatly appreciated
/Steve (Panda_North Photon Collective)