Whoops. Let me start with the REC BMS. Not 700 Euros. 470 Euros. 700 Canadian. Whew.
And
Tear Down Begins!
Can't begin to express the pleasure I derive from taking something so beautiful apart. Really put together so nicely. And all the bits and bobs are so well thought out.
Somebody's missing a tooth
Basically it was: take the connecting power cables off. Negative first! Disconnect the various control/BMS lines. Disconnect the cooling/heating hoses.
I take the smallest pack out first. So that's 2 48v packs tied together for 96. I test. The battery is at 92. It has dropped .1v since I first tested. I take the plastic cap off. Each cell tests at exactly 3.83. That's .01v lower than my initial bulk measurement (all cells together / 24).
Top popped
This also lets me know that the cells are balanced. Bonus.
I then fiddle the lock down. Wow. Nicely done. And with only one bleeding knuckle I lift the pack out. Carry it to the bench. Battery on the bench baby!
Battery on the bench!
Man. I can lift 4 kws of storage power. And look at the size. Still. I was breathing pretty hard after the lift and carry. Smile. Yes. It was because of the weight.
I'll toss in one more. The BMS. Looks like 4 sections. Two control the two 12s packs. One is the master. The other? No idea. Maybe a section for the 24 that goes unused? Or is used in the big pack. Seeing as they are modular. Guess I'll find out when I get those apart.
Enjoy.