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diy solar

diy solar

Anyone done business for batteries with srikobatteries.com?

Package arrived. Box was intact with no issues. After opening:
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Couple foam layers down was the BMS and the bus bars and nuts with two cells:
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Beneath that was the remainder of the cells:
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No issues to note from the cells. Sticker from the side of the cells:
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And one of the QR codes:
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Decoder has them at 100Ah and manufactured in June 2020 I believe. Performing top balance now. I can do 5 cells at a time. The 10A power supply set at 3.5V only went to 4.2A upon first hook up so they do seem to be mostly charged. The only issue I have so far is I got an Overkill solar USB to UART converter, and the connector on the BMS sent does not match. Probably gonna just splice it in there as I don't really want the Bluetooth anyways. That is what the monitor computer is for.

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Top balance completed and pack is assembled. Need some wire management but all looks good so far. BMS startup went off without a hitch. The parameters in it were off pretty far though so I set them to what my Overkill solar BMS settings (tighter). Startup delta was 46mA. Turned off the balancer on the BMS and put my Heltec balancer inline and in under 15 min, setting at 15mA delta with a pack voltage of 27.58V. Gonna leave it there for about 15 min then disconnect the charger. Once my other pack gets a full charge, I can put this one into service with it and bring the system up to 5.1kW of storage.
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I did want to update this thread. My BMS purchased from Sriko did fail. Was showing a cell at 9V for some reason. I changed it out for an Overkill solar one and it works again.
 
I did want to update this thread. My BMS purchased from Sriko did fail. Was showing a cell at 9V for some reason. I changed it out for an Overkill solar one and it works again.
So they shipped what you ordered, a failing BMS could be anything from another company but satisfied with the cells?

Ty
 
Just to add some info, I actually drove to their office building and purchased twenty 10ah LTO flat cells from them. They aren't really set up for customers to walk in, but I said I was local and they said sure stop in. The guy was nice and showed me the 10ah and the Toshiba LTO cells I was asking about. He told me a bit about some of the experiments they did on a few of the cells.

I would drive up there again if I needed more. Nothing super special, but they seem to be an importer and sell standard fare stuff you can also purchase on aliexpress. But I got it the same day and the price for my LTO cells were quite a bit better than aliexpress or anywhere on ebay.
 
This was in the last 24 hours. They don't seem sketchy. They are not the lowest price. Shipping seems high. Especially considering its all ground shipping.
 

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When u call, u speak to the owner of the company, Kondala. That's his cell number. I have spoken to him several times. Nicest guy who will sit on the phone and educate you about what ur doing and buying. I have ordered my 8 cells and will let u know how it all works out when I get them. The BMS comes with the 24V battery case I purchased in China. Also on the way.
 
Update since my somewhat negative posting on Jan. 25th.... So, I finally received a text from the Sriko company so I thought what the heck I'm going to order a set of four 314Ah prismatic batteries.......I used PayPal and thought I placed the order....but nothing changed on there screen "like Thanks for your order"....and no email from PayPal for that charge.... So, I clicked PayPal again and watched carefully to make sure I did everything correctly....(I use PayPal quite often). Same thing...... I email the company and explained this.....but no response going on two days....no PayPal activity either..... seems like they may have issues with there website..... There prices are the best I've found and living in Wisconsin and the company in IL. the shipping was only 30ish bucks.... I can't help but feel untrusting of this company at this point...
Mike
 
Been purchasing from srikobatteries.com for years---zero issues. Just purchased 4, 314ah EVE cells from them last week. Fast shipping from Chino CA (main office is in IL). Just load tested them yesterday. 319ah at .5c. I'm a happy camper.
 
Just wanted to update you. I received the batteries on Fri. Pulled them out yesterday. All Grade A EVE MB31 with individual serial numbers. Each set of four cells comes in its own box exactly the same. Extremely well packaged with two female holes on each terminal, 4 tinned copper busbars, 16 bolts with lockwashers and 4 phenolic sheets

Since there's only 4 busbars, I'd need like 7 more to properly connect 8 of them for top balancing. Waiting for the battery case which has 8 of them. So ignore the twisted wire setup.

I have not connected a DC charger to the bank yet. Kondala said that if u just connect the cells in parallel, in half a day they will all get to the same SOC. How to measure this accurately is beyond me! I will connect the charger tomorrow.
 

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