I bought 3x of Rosen 9.6kw batteries A/B/C and have been using them in an off grid house . 5 months back one of the BMS failed and I bought 3x new BMS boards
expecting further failures . C was changed and worked well , integrated with A/B well .
Now C has failed , so naturally assumed it was the BMS so I fitted a new one . No such luck , it made no difference . The battery alarm light is on but no green lights . no display either. Checked voltage when case was open and 49.9/50v , same as the Growatt inverters are showing . So battery is 95% charged but will not work .
I turned battery of/on and pressed the reset button but no changes . If anyone has had this on a Rosen battery can you share experiences ?
Can I ask for suggestions please ?
expecting further failures . C was changed and worked well , integrated with A/B well .
Now C has failed , so naturally assumed it was the BMS so I fitted a new one . No such luck , it made no difference . The battery alarm light is on but no green lights . no display either. Checked voltage when case was open and 49.9/50v , same as the Growatt inverters are showing . So battery is 95% charged but will not work .
I turned battery of/on and pressed the reset button but no changes . If anyone has had this on a Rosen battery can you share experiences ?
Can I ask for suggestions please ?
