wiseacre
Solar Addict
I never thought I'd be here but after a long time lurking in the forum I mustered up the courage to DIY.
24v 8s - JBD BMS
Lishen 202 Ah cells
Cells were called Grade B.
There was supposed to be cosmetic flaws - two had very minor dents (hardly noticeable) but the rest looked perfect with big pads and threaded posts
All arrived at 3.2+ v
Top Balance completed this morning -
Assembled the battery to capacity test and found the tester DOA ?
MakerHawk Electronic Load Tester USB Load Tester 150W 200V 20A Resistor Adjustable Constant Current Battery Capacity Tester Module Intelligent Discharge Resistance Power Tester
The assembled battery is just sitting waiting to be used
Current cell voltages after 10 hours sitting
I understand the cells dropping from 3.65 to lower voltages is normal.
Debating if I should just wire it up to the system and do a rough capacity test tomorrow using a load on the inverter.
I'm not sure what to think about all this so any comments are welcome.
Do's or Don'ts ?
24v 8s - JBD BMS
Lishen 202 Ah cells
Cells were called Grade B.
There was supposed to be cosmetic flaws - two had very minor dents (hardly noticeable) but the rest looked perfect with big pads and threaded posts
All arrived at 3.2+ v
Top Balance completed this morning -
Assembled the battery to capacity test and found the tester DOA ?
MakerHawk Electronic Load Tester USB Load Tester 150W 200V 20A Resistor Adjustable Constant Current Battery Capacity Tester Module Intelligent Discharge Resistance Power Tester
The assembled battery is just sitting waiting to be used
Current cell voltages after 10 hours sitting
- 3.539
- 3.537
- 3.541
- 3.533 -lowest
- 3,552 -highest
- 3.552
- 3.551
- 3.552
I understand the cells dropping from 3.65 to lower voltages is normal.
Debating if I should just wire it up to the system and do a rough capacity test tomorrow using a load on the inverter.
I'm not sure what to think about all this so any comments are welcome.
Do's or Don'ts ?