Aliexpress has ECO-WORTHY 48V 100Ah LiFePO4 Lithium Battery W/Bluetooth | UL1973 & UL9540A & CEC Listed | 5120Wh Server Rack Battery for $ 608 with coupon code
USAFF70
Features
5120Wh nominal capacity
48V voltage
Bluetooth connectivity for monitoring
UL1973 and UL9540A listed
Weighs about 97 lb.
Measures about 20.6" x 17.1" x 5.6"
https://www.aliexpress.us/item/32...0720.html?
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19 Comments
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As for the accounts, you are correct again. I see some people able to buy multiple coupon items on ali with a single account but I have never gotten that to work.
You would first need to be very sure of the specs of your specific power station and how it handles input power, otherwise damage is possible! And you should still follow fusing best practices, etc.
But to answer your question, It's not about the 5120 watts this battery can output (for any portable power station I've seen), but about the input capability of the power station. Your power station will have a voltage and amperage max on the solar input, which gives you your max input power. This is usually biased toward higher voltage, so heat and cable costs are kept down.
But the battery will never be able to provide more than either of those limits. So even on a big-boy Pecron F5000 which has like 6400 watts of input power, this battery will never provide that much as the F5000 is limited to 26 amps and gets to that big input number by allowing 180v input. The battery will always output it's 51.2v nominal and be limited by the 26 amps max that the f5000 will pull, giving you about 1,331.2watts in that case.
Now, that's not to say it has no benefit. I keep one of these connected to a Bluetti 200l all the time as it's a fraction of the cost of their batteries. In that case, the bluetti has a 1200 watt hard limit on solar input, which would limit this battery in itself. However, the 200l has a 15amp max input, so my battery, connected to the solar input, can only output it's 51.2v x 15 amps, for about 768 watts of input. In my case, it's perfectly adequate. I get a huge boost to storage and if I'm using, say 1500 watts from the power station, it's usually only for a limited time and the internal battery of the 200l is only discharging at the 750 watt deficit during that time.
These can be a fantastic way to increase the capacity of portable power stations for ridiculously less money than OEM extra batteries, but it's not as straightforward as any of us would like.
As for the accounts, you are correct again. I see some people able to buy multiple coupon items on ali with a single account but I have never gotten that to work.
Yeah I want to buy 5 more. I suppose have to wait until new coupon comes out. But to pay $600ish per battery - even the V3 versions is much better than $750-$800.
The Cubix100 is slightly better than V3. Cubix has an auto shuttoff stop button in case of emergency. I watched a video - and it also says you can shutoff any battery from the App - do not know if this is both versions or only Cubix. And they changed the positive terminals to be red instead of orange (minor).
It depends on the power station specs.
Most bigger power station will allow at least 60v which is enough because this 48v battery will go as high as 56v.
Another thing is how much amperage the power station will allow.
If you see your power station solar inputs as 60v 20amps max then you can expect 53v x 20amps= ~1060w
Take the battery wattage(usually 53v) x the amps and you can expect the wattage going in although some power station also cap the wattage at like ~1200w, etc...
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Usually I can buy the first item at the cheapest price and then the price will fluctuate.
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