Dave Kohl
New Member
Can I connect 2 SL3500 to get 7000 watts at 240v?
ECO-WORTHY SL3500 Stackable Power Station is now available for pre-order on the ECO-WORTHY official website. Order now and enjoy a $200 discount!
- Thread starter ECO-WORTHY Sunny
- Start date
BarracudaBob
Harvesting free photons from clean fusion
More like 6400 Watts.
Dave Kohl
New Member
Thanks. Just wondering—why would it only be 6400W with two SL3500s? Still figuring this stuff out
Kavin Linn
New Member
Hey,guy! Just parallel two inverters with phase splitting, you should be able to achieve 240V.
The one thing I do not like on my 50Ah Eco-Worthy batteries (exact same model used here) is the lack of a over current protection device on them. Of course I added OCP to mine but it seems like that would be stupid simple for Eco-Worthy to add for an “entry level” product like this.
Just like virtually all of the 100A sever rack batteries have, regardless of manufacturer.
Seeing 2 minimum (up to 6) of these batteries, with terminals on the side of a rolling cart, with no OCP at the battery level, seems like a disaster waiting to happen.
Anyone else see this as the main weak point for a consumer target, non-DIY target audience?
Just like virtually all of the 100A sever rack batteries have, regardless of manufacturer.
Seeing 2 minimum (up to 6) of these batteries, with terminals on the side of a rolling cart, with no OCP at the battery level, seems like a disaster waiting to happen.
Anyone else see this as the main weak point for a consumer target, non-DIY target audience?
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Brucey
Velcro Man
Apparently a 50Ah server rack type battery with breaker/power switch/comms is in the works, basically a baby version of their 100Ah battery.
I would agree its not ideal for joe average in its current shape but at $350 or less still a useful value proposition imo.
I use a Midnite mnedc250 for ocp and disconnect on my pair in parallel.
Yeah but……. Of all the places to cut corners to hit a price point this seems wrong
.Six 48V nominal batteries stacked, possibly rolling around into something metal or tipping ? That’ll be a big spark !
Hopefully they can easily add something to the manual warning about OCP, per each battery, for what is potentially the version one battery used in this product.
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Brucey
Velcro Man
They've been available for longer than the rack mount units. Its basically a golf cart battery but with metal shell and different form factor. Like early pylontech batteries, just like lead acid. Connect terminals and off to the races.Yeah but……. Of all the places to cut corners to hit a price point this seems wrong
Then later on the rack mounts started getting power switches, breakers etc which made them more diy friendly.
Could prob use something like this to cover the exposed terminals, they are massive.
42OhmsPA
Who likes Electrical Gremlins?
That battery disconnect floating in free air worries me and I'm a risky person.
I see a lot of excess torque being put on the crimps and terminals when it's used.
BarracudaBob
Harvesting free photons from clean fusion
I agree, Makes me want to modify the inverter on top and bolt it to the side. Those little screws holding the back to the front of the switch aren't intended to take the force of turning the knob.
BarracudaBob
Harvesting free photons from clean fusion
Need to make a little bracket that attached to the frame for the battery switch.
Wolfpack7483
Solar Enthusiast
I'd think you'd want 1 lead coming from the top battery to the inverter and the other coming from the bottom battery, instead of both from the top. This would help equalize charge and discharge between the 2 batteries.
Yes, I agree.
Not the best design by Eco-Worthy.
I set it up according to the manual just to power it on first time.
I plan to mount the switch to a bracket and connect the inverter to opposite battery terminals.
Other than that, it’s quite a compact (heavy!) little power station.
It’ll be mounted in the back of my truck for camping trips to plug in trailer and power up stuff.
Not the best design by Eco-Worthy.
I set it up according to the manual just to power it on first time.
I plan to mount the switch to a bracket and connect the inverter to opposite battery terminals.
Other than that, it’s quite a compact (heavy!) little power station.
It’ll be mounted in the back of my truck for camping trips to plug in trailer and power up stuff.
fubo
New Member
How does it charge from household outlet? Do you need to buy a specific cable for it? Is there a setting to control how much current being drawn so it can be used on a 15A 120V circuit?
wpns
Solar Joules are catch and release
Strictly speaking, the output is adjustable, and if you adjust it so that it will not overload the input, then you have performed some kind of input current limiting.
fubo
New Member
So i need a AC power cable that split the 3 lines? OK... i ordered one so just wanted to know what i need to get. But everything else like the battery connect cables, etc. are all in your kit?
fubo
New Member
I ask for a PDF of the manual and they didn't have one...
Im glad you cant see my setup currently lol.
both my busbars are just hanging in free space
fubo
New Member
This shouldn't matter, it's parallel circuit. If one battery finished charging early the BMS will shut off then the other battery gets more power.
Ok a mini review:
This is bizarre. The AC in/out has individual holes for individual conductor entry. Meaning the outer jacket needs to be removed outside of the housing.
Additionally, there’s nothing available for providing strain relief. There were never any closeup photos online to see this beforehand.
Also, this is supposedly a portable power station (power any place any time) - lol it weighs in total about 170 lbs. The casters on the bottom are only good for rolling around hard smooth surfaces. The handle pivots away at the base, so tilting like a handtruck is not an option.
Once assembled the unit is only 19” tall. It’s quite compact for what it is, no wasted space which is nice.
When on the floor the screen is 16-17” high, which means you have to sit on the floor and lean down to view it.
This is bizarre. The AC in/out has individual holes for individual conductor entry. Meaning the outer jacket needs to be removed outside of the housing.
Additionally, there’s nothing available for providing strain relief. There were never any closeup photos online to see this beforehand.
Also, this is supposedly a portable power station (power any place any time) - lol it weighs in total about 170 lbs. The casters on the bottom are only good for rolling around hard smooth surfaces. The handle pivots away at the base, so tilting like a handtruck is not an option.
Once assembled the unit is only 19” tall. It’s quite compact for what it is, no wasted space which is nice.
When on the floor the screen is 16-17” high, which means you have to sit on the floor and lean down to view it.
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BarracudaBob
Harvesting free photons from clean fusion
Put a ferrule on the wire to make sure there is a plastic insulator on the outside blocking you from touching it.
BarracudaBob
Harvesting free photons from clean fusion
They could also have a protective cover open at the bottom held on by two screws. Tight fitting gromets or plugs on the wires would also do it.
ECO-WORTHY Sunny
New Member
Hello everyone, I'm Sunny. I've seen the lively discussion and some concerns raised about the SL3500. I'd like to address the following questions here:
Our handle is both tilt-adjustable and telescopic. Should you encounter any issues during installation, please contact our customer support.
We sincerely appreciate the strong support from a significant number of users. We value your suggestions for improvement and welcome all feedback on our product's limitations. Please feel free to share your perspectives!
- Response regarding the absence of OCP in the current 48V 50Ah battery.
Firstly, the decision to omit OCP (Over-Current Protection) from the initial SL3500 design was based on cost considerations. Our primary goal was to provide customers with an affordable 'POWER STATION,' which involved making certain trade-offs between features and cost. So, regarding the balance between retaining functionality versus controlling costs—what are your thoughts? We welcome your input!
- Response regarding the currently "exposed terminals" on the SL3500.
The battery terminals do come equipped with protective covers. However, the terminals on the middle layer have two battery wires connected, which prevents the use of the terminal covers. To resolve this, we are considering two solutions for future versions: 1) Switching to quick-connect terminals, or 2) Adjusting them to four battery terminals (similar to server rack lithium batteries). This will eliminate the issue of exposed terminals. - Response regarding the "floating battery disconnect switch".
The current battery disconnect switch is not securely fixed, which may appear unappealing. In future versions, we plan to remove this switch and integrate it internally within the battery unit. - Response regarding how to connect AC INPUT and PV INPUT.
Currently, charging via AC INPUT or PV INPUT on the SL3500 requires connecting bare wires to terminals (L, N, G for AC; PV+ and PV- for PV). ECO-WORTHY does not currently provide dedicated charging cables for PV or AC inputs. What’s your suggestions for improving these interfaces?
Our handle is both tilt-adjustable and telescopic. Should you encounter any issues during installation, please contact our customer support.
We sincerely appreciate the strong support from a significant number of users. We value your suggestions for improvement and welcome all feedback on our product's limitations. Please feel free to share your perspectives!
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