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Whats the pricing on the Seplos MASON-280 DIY battery case kit? I got a quote for 3 cases @ $500/ea and $450 for sea shipping to US, almost $2000 altogether.. seems quite high.. Saw some other post at 4 cases with shipping for $1500 or was that freight only?

Good to hear EVE are still good. I read Tesla is partnering with CATL, so those could be good unless they sell the rejects. This pricing is accurate: http://www.powerwholesale.net/ ? Or is better pricing availble from Jenny or Amy at DOCAN? Whats the difference between UART or RS485 or CAN for...

Looking to get 16 cells and then another 32 or 48. Which cells brands are preferred for high quality, and cost effective? Also where are people getting to 200A / 300A 16S JBD BMS? Overkill Solar only has 100A for 16S.

Ask for pictures, check for QR codes Ask for datasheet Ask for Internal Resistance (IR) matching Ask how will they resolve any problems? Who pays for return shipping if necessary? etc.. $86 was the price I was quote when the 280Ah cells were just becoming popular, it sounds like these could be...

Nice battery box! Where did you get it? Or is it custom?

Export shipping in China is subsidized which is why its so cheap. Return shipping is 2x maybe 3x. More expensive, yes. Too costly, well that depends on your agreement before hand. If you comprehended my post, I advised to talk to the vendor and building the relationship: who is responsible for...

This is nonsense. Everyone over advertises, even American companies. After over 300 orders from China on AliExpress and Alibaba. I'd say 95%+ are as described. I can count on a single hand the number of less than ideal experiences: 1) Wrong item sent, expensive camera. Seller refunded and...

Links to vendors / panels please

Found out used panels don't qualify for the 30% rebate for those in the US

I'm also thinking about getting a pallet or two with friends. Please update us when you get them and how much power they put out!

Got the UL 1703 certificate verified! I'll follow up on the Canadian Solar - if they can be used On-grid, on-roof seems like a potential deal..

Bluesun / Solarhome sent the UL 1703 certificate quickly. Waiting to hear back on certificate verification. SanTan solar says no mfg warranty but they provide a 1 year warranty. Anyone know of new panels better than $0.45/watt ? What about used panels?

Check out DavidPoz review: Split-Phase Inverter, LV5048, Test Solar, Off-Grid

I'll need RS-485 since I plan to use Batrium BMS with my battery system. Yep :) I planned for dual SI6048 with a current shunt + contactor/relay disconnect for the battery bank. I've heard rumor the a new version for Europe will come to the US but they are waiting to empty existing stock...

Thanks for sharing. I was planning to get the Sunny Island 6048 but will no longer do so - leaning even more towards the Sol-Ark!

Found these on SantanSolar: CSUN310-60M-BB 310W @ $140 https://store.santansolar.com/product/csun-310w/ They look nearly the same to the BSM300M-60 but they are not UL 1703 certified. The Blue Sun BSM300M-60 say they are UL 1703 listed, going to check for certification since I'll have to...

Panels: ? considering https://diysolarforum.com/threads/solarhome-300-watt-24-volt-monocrystalline-black-frame-solar-panel-anyone-test-this.7617/post-81009 Charge controller: ? considering: Midnite Solar, Victron, or SMA + Power Optimizers, my research shows enphase has a higher failure rate...

thats a neat metric to gut check datasheets! looks like efficiency. surface area / power x (energy in sunlight / per unit area)

Thanks for the info. I've used Alibaba for smaller purchases <$1000, never for panels with all the duties, import fee, and now anti-dumping tariffs and and other tariffs on Chinese good, especially solar panels. I found your other thread about this huge fee for importing, thanks for sharing!

$135 for a 300W monocrystalline - is this legit? anyone try this? https://www.solarhomepv.com/collections/solar-panels/products/solarhome-high-efficiency-black-300w-mono-solar-panel edit: mfg # is : BSM300M-60 looks to be Blue Sun solar panels