Recent content by Samcat

I will once I'm back to US, I'm in Spain now at my property. I have received 3 of them and one of them will be completely open and inspected with plenty of pictures and my personal opinion on this matter, is it worth the money. When I have received first one there was very limited information...

Finally showed at my place will update with more details and pictures... 2 more coming on Monday.

You will be amazed if you work on other brands that are not Chinese and catch fire.

You are correct....i was looking at my data logs at various different Ah cells....only differences is dropping from flat curve little different on less than 100 Ah cells. I have downloaded your chart and printed out it will be seating on my wall in the shop. Appreciate all the time to invest in...

@rickst29 what Ah ratings are for this charts?

Following

Following I have ordered LPBF 15kwh pack. If you have time it would be nice if you do discharge tests with some good shunt. Looking like 2 rows per 16S 2P setup. And did you receive laptop software for BMS insight.

@rickst29 I agree with you. But there is so much we can get with generic BMS that at times of design was probably never intended for high Ah cells. Dedicated shunt especially in multi parallel setup should be more accurate. I usually look at lifepo4 voltage curve....if going down from flat...

It is nice to have about 0.5 meters space between 2 or 3 rows of panels for maintenance and cleaning. Especially when laying down and working on wiring or connectors issues. Also good space for blowing leafs if they accumulated between roof and solar panels. Space between roof and panels should...

I will be more than happy if you can provide shunt that has ability to measure 200+ A and it is capable to measure very small current draw. You have probably misunderstood my post. I was not referring to the JK bms issue but your overall expectations that you should expect from JK BMS . And...

This small current draw will not be picked up by shunt. And by looking at voltage that is rough estimate. Your SOC is guessing. Try to find better shunt that will keep memory of SOC even if not used for many weeks. But extend periods of not charging or discharging will not substitute lifepo4...

And m And mystery meter is? I didn't read entire thread...so is there something else besides Fluke.

I don't get it J1772 is L2 standard for low speed chargers commercially available....are you hitting fast DC charging stations instead of AC J1772 standard?

If you can adjust tail current to 0.05 C it will not matter what your absorption tome is set for once it hits tail current it will go to float. Tail current depends on manufacturers and types of chemistry ( what are cells you have originally designed for) But 0.05 C is usually good set point...

If you want less bus bars ( less resistance more efficiency) i would go with two parallel 16S battery banks. It will require one more BMS . This what i have learned working with EV battery packs. And slowly moving away from P and S in one battery setup. If you are going to scratch my advice...