It looks like you have a washer between the two lugs on the mega fuse. That shouldn't be there, there seems to be an extra washer on the other side of that fuse as well. Lug to fuse, contact to contact no extra washers between current carrying components, ever.I just took some updated pics.
What was voltage before? A voltage of .6v means that your BMS has kicked in and shut the batteries down to protect them.Slept in the van last night everything was great. Cooked on induction cooktop watched movies not using the inverter. Got up this morning, turned on the inverter with the Chinese diesel heater running and poof it all bricked out. No power again. I checked the voltage and it was saying .6v. I had over 80 percent battery left and no issues at all until I switched that inverter on. Bad batteries? I'm confused!
Plenty of good non-battleborn batteries out there, (SOK, Renogy) but this doesn't seem to be one.I used the inverter last night to use the cooktop! Sorry I wasn't clear lol. I looked up the battery reviews and got this wonderful info. Yuck this is what I get for not buying Battleborn I guess lol
I/QUOTE]Plenty of good non-battleborn batteries out there, (SOK, Renogy) but this doesn't seem to be one.
Just to make sure, charge the battery up to 14.4v and see if things still don't work. Might want to contact their warranty department too. No sense in completely giving up.
Just a data point:2) Current output limits
There is a lot of marketing done by Li battery companies because it is so competitive about how much current can flow before it starts to be faster than the BMS or internal cell design can handle.
The reality is that there are only a handful of commercial BMS circuits used by LiFe battery companies and most of them will only run reliably at 50 - 75 amps continuous. A few high end ones will run more, but still very few can really sustain 100 amps continuous before they get to hot and trip.
Holy wow information. Thank you so much. The problem with that is it trips.....without anything being on. It's tripping the whole system as I turn the inverter on. Forgive me if I'm wrong .... But I'm gathering that I would have been better buying 4 100 ah batteries instead of 2 200ah batteries? Sorry if I am misunderstanding. Just riding home from Thanksgiving feasts!Your batteries may or may not be working as well as can be expected - I don't know.
Try to use them with a smaller inverter load - like a power drill and see if that trips them.
Great! I will try that tomorrow. Thanks, I'll let you know.What is the specified Max BMS current for your batteries? Even a low .5c (100a) x 2 should easily support the inverter.
Oh, here it is:
From EP12200 (media-amazon.com)
View attachment 80189
150A is "low rate" for a 200AH battery. Two in parallel should be plenty to run your inverter. Something else is wrong. There is NO WAY the inverter is drawing > 400A for three seconds unless something is seriously wrong with the inverter. Possibly issues with the battery. Maybe disconnect one and try again with an <1kw load. A single battery should drive that fine. Possibly one battery is not performing properly?