Pink7

Whole order was USD 4051 for 32 batteries and 2 x bms ($206) included delivery ($485) and custom etc. Pink

Here is a short update: I tested some batteries, all had same voltage as printed on the batteries: 3.28V. In photo is also the nuts and busbars who come with the batteries Pink

I easier to trust in a company who already have their name out there and who will have some efford to protect their reputation. Pink

This is what i based my decision on

Just got this back from Crossy: Pink

Photos sent to Crossy. Pink

My plan is to just put them up with the active balancer JK BMS. I expect they come with very identical voltage, but i will test that more later. I dont have any way to check if they already balanced. Pink

I see the qr codes in top of the batteries Pink

Hi.. I buy from QSO, i will ad some contact info very soon. All packed out now and look great.. No duty no vat.. I will get some more photos soon. Here is the 2 x 150 A JK BMS with 2A balancers Pink

32 x QSO LF280K arrived this morning. Just started unpacking. Until now all look very good condition. Delivery was just over a week from China. Pink

If anyone want to demand a theoretically correct ROI calculation is also need to the alternative earning of the investment (interest etc.) and also estimate future power prices and also inflation. Regarding EV, i guess some got more into EV options when discover the solar opportunities. Cheers for everyone who go solar route.. Hopefully money come back in reasonable time.. Let me also add that batteries maybe not give best ROI, but before i went solar route i was considering buying aggregate for emergency power. I would be VERY happy to have my ow backup power when grid down. Pink

Back in the eighties when i was a kid i had my charity workday in the senior nursing home my mother worked. At a time joined the male caretaker around the building then we get down to the very basement with the elevator. So i waited outside the elevator when i got something from one the rooms in the storages there. So im standing there with some keys and a screwdriver in my hands, then i noticed on the wall outside the elevator door there was 2 round metal items who looked like some kind of buttons, but they was level with the wall. I imagined this could be a priority button for elevator to come to me first so i got the key and screw driver and pushed in the 2 buttons. I got the shock of my life, it hit me so hard. What i pushed was the emergency poles for the elevator who is used if lost power and elevator stuck between 2 floors. later someone told me its quote much power in those old heavy elevators ant that i was very lucky to survive it.. Pink

...and just got msg from QSO that batteries and BMS are shipped.. So end of this month i expect the delivery. I think they use Thailand Special Line.. Pink

Here is an update: My brother in law is busy with soon temple building project so im waiting for him to get finished with that so he can help me with my steel work and get panels up. My battery order got some delay with Chinese new year and now waiting for stock from JK bms, so things take time. When it come to my indoor setup Im currently tempted to not install my inverters to incoming grid, only to ATS. The big question is at what grade will i NOT need grid power?? I use 20-22kw/day ( most in day time) battery capacity is near 30KW. If my ATS need to switch a time or 2 in a month i can live with that.. Hopefully without off my pc. I think my pc power have a some power buffer for a sec or two but not sure. Attached photo. testing some setup with battery breakers in the 2 main boxes ( removed breakers for grid inn) Mainly plan was a smaller box in the middle for battery breakers.. The 35mm2 cables is quite still and not easy to twist and route as i first expected, so maybe battery breakers will be upside down in main boxes just under the battery input on the inverters. Batteries will be just under the breaker boxes. Pink

Update: I wired some thin still tread around the wire to tighten it on 3 different levels and was able to get the wire into the lug, the removed the wires one by one. Pink

I found a 50mm2 version of this, Material: Tin Plated Coppe Description: Made from 100% Annealed Copper for Max Current Flow The flat part is 7mm x 2.6mm. I hope that's enough for 100Amp? Pink

Setup is 2 inverters in parallel with 2 breaker, 2 batteries with 2 bms. Cables are 35mm2 as requested in Growatt manual. Batteries will be parallel connected between inverter and breaker. Pink

Could be.. i just saw it was shaped the way i needed. Maybe i should look some other type terminals then? Edit: maybe this type better? Pink

I might can use this terminals 2 pieces back to back to get wire between the breakers. Pink

My "easy" plan to parallel the breakers with just wire between will not work, the battery cable kind of expand when strip it so there is no chance to get 2 of them in the breaker. I also see that its quite a challenge to get 35mm2 cable in to 35mm2 lugs, i might need to return the 35mm2 lugs and get 50mm2 lugs. Pink

I have been thinking about same if its no ready made solution to get, I will do some testing later. Pink

I have a double ATS i want to place over my main electrical cabinet for home, but i cant find any cabinet or box to mount it in. I want as less exposed connections etc as possible. Any ideas? Or just screw it an the wall? The common electrical cabinets are way out of siza and shape ..

This one arrived today.. Originally i was planed to get the hammer crimper but B300 more and i got this.. Pink

Water tanks ...

I have a few water thanks myself and a purifier for drinking water and i use to tell wife that this is best investment ever so we could stop buying water bottles. Pink