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For more information, please visit Telecom Battery Manufacturer.
If you go with docan. Get in contact with Jenny wu. She’s the best. I just bought from her. Waiting shipment.
But looking at the Docan website, they do not offer a "Powerwall". The do offer 1 - 12 volt 100 Ah battery pack from what I could see.
In my dealings with Felicity, they out and out lied to me. Meritsun seems unknown here until just recently and it looks to me that their products look exactly the same as everyone else's and their website stock shots and copyrighting also boast how great they are but they provide no proof.
I bought 2 products from GSL and it was a horrible horrible stressful idiotic process and would have taken months longer than I was told if I had not finally started to chase them down to live up to their bullshit. When one battery shut down, their tech support was 100% useless. They asked lots of questions, asked for photos and video, both of which I provided, then they claimed that they could not view the photos or the videos, despite my sending them in 3 ways, in an , via a secure link for download, via a link in an to another cloud storage for download. The problem was never resolved by them and they stopped communication, which they did also after the sale, and after the shipping which was so botched up despite my warning, that it boggled the mine of the stupidity and carelessness. Their website and Alibaba website is full of errors and wrong prices and sadly, these Chinese sellers insist on everything goin through a single salesman, even tech support and it is a horrible frustrating process if you get a useless salesman that only knows how or how to try to sell.
I had contacted other sellers, but they either didn't communicate or finally admitted to being B cell resellers in a fancy box, despite their website hype.
Maybe stick with EG4 or SOK or the very overpriced USA battery builders like BattleBorn, though they may not make all in one "power walls", which has it's pros and cons.
If your all in one power wall has a problem, getting tech support and warranty replacement could be a nightmare and sending it back for service could be expensive too. The BS from the Chinese salesman will try to convince you of an only wonderful no hassle experience but they provided me with zero evidence or proof of the process or experience of others. They skip the question and ignore you or talk about something else or just say, "Don't Worry, Don't Worry".
I'd do my research on pros and cons of power walls. I wonder if they are even there yet and no one knows how reliable they will be long term? I would seriously avoid a Chinese power wall unless you can afford the risk and know more than I did starting out.
Clarity:
A "PowerWall" which is TM to Tesla BTW ! is not just a Battery Pack but also has a boat load more in it than just Batteries & a Battery Management System, so the Cost Reflects that.
AC or DC Battery Coupled Systems use Modular Battery Pack assemblies which are available in several formats and cost quite a bit less BUT Require an Inverter/Charger & Solar Controller. These can be in the form of an AIO (All In One) or modular components which offer the flexibility for your specific system needs & requirements.
DIY Battery Packs are a Collection of Cells with BMS (Battery Management System) which you have to assemble and get right. Most everyone FAILS TO MENTION that this requires a minimum set of tools & equipment such as accurate Digital Multi-Meters which can add considerable extra $ for better grade equipment. Lithium Based Batteries (ALL FORMS) are milliohm & millivolt sensitive therefore High Accuracy is a MUST.
Have a LOOK here for comparisons of the more common "GOOD to High End" Battery packs and that will help enlighten you, do not just SKIM but read the details. https://www.cleanenergyreviews.info/battery-storage-comparison-chart
Lastly, the Server (Telecom) rack-mountable are typically limited to 100AH with few capable of 200AH. This is primarily due to Weight Issues as racking can only support so much.
A 48V requires 16 LFP cells to make one "battery". A 24V Battery requires 8 LFP Cells to make one "battery".
1x 105AH cell weighs 2kg/4.4lbs. 16 pcs = 32kg/70.5 Lbs.
1x 304AH cell weighs 5.6kg/12.3 Lbs. 16 pcs = 89.6kg/197.5 Lbs.
Hope it helps Good Luck.
PS: A Battery = a # Cells, a BMS & Case.
A Battery Bank is a set of "Complete Batteries" set into Parallel sharing a common DC Bus. This can be 2 to 10 Batteries or more if you are brave enough.
But looking at the Docan website, they do not offer a "Powerwall". The do offer 1 - 12 volt 100 Ah battery pack from what I could see.
In my dealings with Felicity, they out and out lied to me. Meritsun seems unknown here until just recently and it looks to me that their products look exactly the same as everyone else's and their website stock shots and copyrighting also boast how great they are but they provide no proof.
I bought 2 products from GSL and it was a horrible horrible stressful idiotic process and would have taken months longer than I was told if I had not finally started to chase them down to live up to their bullshit. When one battery shut down, their tech support was 100% useless. They asked lots of questions, asked for photos and video, both of which I provided, then they claimed that they could not view the photos or the videos, despite my sending them in 3 ways, in an , via a secure link for download, via a link in an to another cloud storage for download. The problem was never resolved by them and they stopped communication, which they did also after the sale, and after the shipping which was so botched up despite my warning, that it boggled the mine of the stupidity and carelessness. Their website and Alibaba website is full of errors and wrong prices and sadly, these Chinese sellers insist on everything goin through a single salesman, even tech support and it is a horrible frustrating process if you get a useless salesman that only knows how or how to try to sell.
I had contacted other sellers, but they either didn't communicate or finally admitted to being B cell resellers in a fancy box, despite their website hype.
Maybe stick with EG4 or SOK or the very overpriced USA battery builders like BattleBorn, though they may not make all in one "power walls", which has it's pros and cons.
If your all in one power wall has a problem, getting tech support and warranty replacement could be a nightmare and sending it back for service could be expensive too. The BS from the Chinese salesman will try to convince you of an only wonderful no hassle experience but they provided me with zero evidence or proof of the process or experience of others. They skip the question and ignore you or talk about something else or just say, "Don't Worry, Don't Worry".
I'd do my research on pros and cons of power walls. I wonder if they are even there yet and no one knows how reliable they will be long term? I would seriously avoid a Chinese power wall unless you can afford the risk and know more than I did starting out.
Thank you for your response, it is clear to me that these Chinese are not reliable, in terms of sales, perhaps some of their products are good but if they have so many problems for support, it is better not to buy from them