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System is working perfectly!! Thanks. I’m not sure about your Big batteries though. Wishing you well. Cheers.

Well the new build has been completed; torn down and transported to the cabin, and now reconnected... It's working magically... Hoping summer is being kind to everyone... Cheers from Ontario...

I'm also going to move on my BYD battery set up. I have 7 good cells and all the plastic snap in pieces etc. I would be happy to give it to anyone wishing to play or repair their systems. You would just need to pick up or pay shipping... Hoping someone out there can get an early Christmas...

Thanks for this lead... I will check them out.. I've also been looking at 24V 200AH Lcd battery by EG4. They are a nice complete package, have great interface with Growatt inverters and seem to get good reviews.. I'm awaiting a quote for shipment to Ontario.. cheers

Yes indeed, that did free up a lot of space and weight... I'm pricing out Fortune 100ah cells which ship to canada for a reasonable price...A little less power but I don't need a whole lot and these should last a while.. I will avoid replacing the 1 bad cell.. Maybe make a 12 volt for some other...

Would love to just change out the bad one for another and see how that goes?? Right now I'm looking at the raw cells recommended by Will.. It would be nice to find similar size or slightly smaller cells and use my existing case, circuit breaker, bms, Anderson quick connect and LCD readout.. Not...

Just tore down the battery again with definite dead cell... good voltage on the other 7 cells... such a shame/waste... At least I know to move forward. Not sure if I will build or buy a new complete unit. Been checking out these EG4's and seeing if they ship or are available in Canada. I've got...

more wonderful advise iamrich... This will add make the process much easier... I will give the battery a charge without the BMS as well.. Will keep you posted on how this all goes.. cheers

Brilliant breakdown... TY..

thanks iamrich... I like your thinking better than theirs. One learns a lot about relationships when things don't go necessarily well. I would have hoped they would have stepped up here. Moving on - I have the winter to play with learning about building and good new cells to buy. I will even try...

Good morning all from Ontario. Just wishing to update my status or more accurately my system status at my cabin in Northern Ontario. I recently returned after finally getting to the problem of my issues with my BigBattery/Growatt system. I've included a few pics in order to help anyone in a...

Thank you. I will look into that. Cheers

This is the other thread for those so inclined... Very informative, I think.. cheers https://diysolarforum.com/threads/techdirect-byd-bms-in-pre-built-units-can-anyone-read-this-chinese-label.4436/

THANKS.. I've just sent them, Big Battery another email explaining issue and asking for help... I've also been on another thread in this forum dealing with the exact BMS and battery.. Very interesting and intelligent members, and a lot over my head.. :oops: Will keep plugging away...

So I'm back up North and have topped up the LiFePO4 power wall to about 25 volts with the charger that Rykelo used from Amazon. It worked just fine getting my powerwall up a volt and a bit before showing charged. It still won't turn on the Growatt so I did some more exploration. Sure enough I'm...

I haven't been back up to the cabin to try out the battery charger. The Growatt works great on my two 12volt marine batteries in series. I will post how the battery charger works on the 24V LiFePO4 powerwall as soon as I can. cheers

Wow, congrats... That's so great it worked for you.. I appreciate your getting back to me and passing on the info. i may just give it a go.. Great price for hopefully a limited time use... Would love a solar company who rented chargers... I'm equally ignorant of some of the finer details, but it...

Hi Rykelo The short answer is no, not yet. I tried ordering a battery charger from big battery but ran into border issues. I am looking into buying a charge controller and just using it to charge the battery up. I hope to get on that later this month. I’m also not convinced the BMS is working...

Unable to post video. Sorry, Didn’t realize only photos. Hopefully the explanation is enough. ☕️

Moving forward to another observation/learning opportunity. ? attached is a video of voltage on the output side of the BMS when connected to the Growatt and when disconnected!! Strangely, the voltage is similar on both the input and output side of the BMS when not connected to anything, but...

Hello all, for those kind enough to assist me and for anyone interested in learning about this system i would like to update folks.. Just got back from my cabin and followed some sound advice to troubleshoot the Growatt system. First off thanks BenQ for the advise to connect two 12volt (any...

I have a couple of boat batteries that I will pull out of and use them to jump start the Growatt... The Misses may miss the electric start!! But it's all for a good cause.. Enjoy your weekend all and I will happily post when I get er powered up... It's a shame the company itself won't return a...

Sweet... Will find a Canadian version eh!!! should be about 260$$$ thanks BenQ

I've continually compare the LED volt reading with my meter directly on the contacts of the battery. Also when I shut the breaker off the LED reading will be much closer to 38 volts sounding the alarm on the BMS. When I throw the breaker back on the batteries it seems the BMS adjust the voltage...

thanks for your support JJ... I have tried the generator but this won't activate the Growatt either... This is why I was hoping for a simpler test to see if the Growatt is actually alive!!! I will take in all the kindness and move on to charging the battery on a stable source and trying to find...

That's a great idea. I will move in that direction... Battery is 200 plus pounds and I have to load it into a boat then into my van on the mainland. A challenge when I was younger, more of a pain these days.. thanks.. cheers

I will check this out.. Thank you... It's an older refurbished powerwall that Will hooks up to an MPP all in one inverter. There is no leakage and all looks good on the top inside. (Wiring, etc. ) It is over 26 volts when I remove it but drops down to about 23.5 volts by morning... Thank you...

Yes i have a generator but not a separate battery charger for this powerwall; was checking these out on Will's site. I have connected the generator to the Growatt. At the suggestion of an electrician up this way, I directly connected to 120 watts of solar panels (24 volts) with a Voc of around...

Thanks for the quick reply. I am away from the cabin right now. Will happily send pics with various readings and wiring when I'm back up next week. Was hoping there would be enough voltage for the Growatt to at least turn on.. cheers

Good morning, I am looking for some guidance in setting up my new Growatt model SPF 3000TL LVM-24P connected to a 24 volt 3kwh powerwall from Big Battery. Both units unfortunately sat in a Detroit warehouse for almost a year until I could find a broker to get them across the border for me to...