Hello Everyone
Just joined the forum and stripped down a Poweroak AC200P, right down to the battery and BMS Board.
I bought it as a project, it charged up to between 4 and 12 Volts, depending on it’s mood and then shot to 100%, if switched off then goes between 0 and 2%.
Its must be an early one, as it has all the 16 cell values in BMS Data Screen and cannot find any manual that looks like all the pages of the display and does not have an item for changing 50 to 60hz.
The screen has Orange and Blue selectable options and only one page in Settings with 6 selectable options.
I measured Battery Voltage from top XT90 battery cable that plugs in behind Screen and Sockets and it reads 35.11v, however, now stripped down to Battery Pack and BMS Board with Cables to Battery disconnected, Voltage there shows 49.65v.
I was going to charged the battery directly from those cables direct to battery pack, however, with 49.65v from the cables, think I might be wasting my time, plus I believe 46v is the maximum the battery should be charged to directly.
On the Battery Cell 1 to 16 screen each cell is now showing between 3.09 to 3.17/8.
When I first got it home and switched it on they were reading 2.64 to 2,97.
The BMS Board details are:
BMS Board 13.900.00304-05
AC200 Rev 5.0
2020-08-07
The label on the back States Poweroak AC200P and the front States 2000W - 2000Wh.
Would really appreciate if anyone could advise a course of action, could it be the BMS at fault.
Should I try with the Croc Clips to XT90 and Female DC7909 and charge it, not sure this would be the correct thing to do, as the battery reads 49.65 at their cables.
The 35.11 reading at the BMS battery cable XT90 is puzzling.
Have disconnected Battery Cables from BMS to let it discharge - Don’t know if it will do anything, but Durr de Durr.
One more thing - It charges from Solar up to high 200s - British Sunshine at the Moment - Charges from T500 Over 400W and Car input from EB240 at 119W, so charging is working - It just throws a wobbly after a few minutes and shoots to 100 percent.
Thank You in advance from the UK.