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I don't know skypower you know like I know I've done all that..even disconnected everything except solar, controller n batts... Everything came to life this morning and everything worked fine..as I said it got to 20% then at 2am . .. everything dead again.. I'm stumped And no one here's even...

Nah no probing that I've felt Dave.. don't think it's alians.. just how can this all happen at once. Woke up this morning and van started... I did nothing.. everything charged all day got 20%into it... thought ok..back to normal..then at 2am listening to music... everything went dead.. Bang ...

Ok so my Eco monitor may be crappy and inaccurate..ran perfectly for the last 2 yrs and perfect for the last 6months With the 400 amp batteries. Never wavering or fluctuating eradically. Solar puts in about 6% or 24 amps a day while running everything at about 6% a day.. so 12%.. Overnight...

Should the batteries read 14.2v regardless of whether the capacity is 1% or 100% ?? It seems like the batteries won't restart until the Amps reach 1% and the voltage reaches 12.8v...anyway

Yeah fridges are about 3amp draw each...3kw inverter... never use it..

Hmm .. it's hard to remember the numbers when everything is going well... I remember fully charging the batteries on 240v lithium charger don't remember the v when fully charged. Do remember checking at inverter under load and reading 12.8 at the inverter terminals. Hense the slow climb to 50%...

Well ok... but even if the gauge is out.. it only reads.. Eco worthy has to commence recording in/out from 0 charge to be accurate..

Sorry meant bms's... although some BMW's..

Dodgy BMW's..both or just one... batteries are only about 6 months old... replacing 2x100 which ran perfectly with the same setup.. so did the 2x200 until about 2 months ago..then this?

Hmmm me too..no fuses blow.. BMS must allow it to happen due to parallel batteries allow my 3kw inverter or my 3kw infrared cooktop to run at full power.. So maybe BMS is dumping and then shutting down when the batteries are depleted.

Sorry 12.8v is v coming out...yes always charges at lithium setting... currently 14.2v

To add.. when Eco worthy reads 50% of 400 amp capacity..2x200 in parallel...C agrees.. about 200,000 mAh ..E is about 2000 Wh.... Then the bang..0 everything.wait till solar charges to 1% then everything charges normal until about a month or 50% then bang again...

Cheers and sorry for the wrong terminalogy.. voltage is always 12.8. and amp/hrs and what/hrs are on the Eco worthy donut. It reads everything in/out. Was 200 Amps in batteries @ 12.8v..then 0.. and batteries shut off completely. All earth's to batteries.. except the DC/DC which I eliminated by...

Using Eco worthy with the donut.. all going in and out runs through..2 yrs always spot on..

Hi everyone, newbie, I've got 400amps lithium, 40amp DC/DC and 1200w solar through a 60amp controller. Randomly, 3rd time in 2months, I'll wake up in the morning and what was 200-300amps will be gone, batteries have shut down and monitor reads 0 percent. I have the DC/DC isolated and only turn...