Information request please

[Cush]

Perpetual motion isn't possible.
The inverter will draw massively more from the battery bank than the charger can put back in.

The power bank is a separate system from the lead acid batteries at the other end of the charger. It’s like portable why, admittedly very limited though.

 

[Petroleumblownapart]

I don't think the original idea would work. Your lithium leisure battery is 12v +, but the ecoflow 12v outlet is not a direct connection to the ecoflow battery which is 28.8v and so there is some electronics which reduces the output to 12v.

Interesting, hadn't known that. Someone suggested EF tech would be a good call.... I agree.

 

[Petroleumblownapart]

The power bank is a separate system from the lead acid batteries at the other end of the charger. It’s like portable why, admittedly very limited though.

I don't have LA!

 

[Cush]

I don't have LA!

Appreciate that. I was replying to pappa johns reply to my post where he thought I was suggesting using the leisure batteries to run an inverter to the ehu socket, through the charger and back to the leisure batteries.

 

[Hoovie]

I am not sure if anyone has run their 12V compressor fridge off a 10A outlet on a power station?
And I mean ACTUALLY DONE IT, rather than said they could do it as the max draw on a 12V fridge is only around 5A so under the 10A limit on the outlet.

If the outlet is a strict 10A, then you cannot run a fridge off it as the initial inrush current when a compressor starts up is in the range of 10x the running power and way more than 10A. (This assumes the fridge is not fitted with a soft-start kit. Air conditioners often are, but I doubt fridges ever are as standard).

For a real life ACTUALLY DONE IT - AND FAILED example, try running a "5A" fridge off the Load circuitry of a Victron MPPT controller, which depending on the model are 10,15, or 20A outputs. As soon as the fridge kicks in, the circuit cuts out due to current overload.

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[Hoovie]

Manufacturers often use the minimum size cables they can get away with.

Not sure I would agree with the above statement ..... only "often"??

 

[pappajohn]

The power bank is a separate system from the lead acid batteries at the other end of the charger. It’s like portable why, admittedly very limited though.

I read it as use the power bank to run the inverter to feed the hookup which would charge the lithium and the power bank.
I may have misunderstood.

 

[Raul]

I am not sure if anyone has run their 12V compressor fridge off a 10A outlet on a power station?
And I mean ACTUALLY DONE IT, rather than said they could do it as the max draw on a 12V fridge is only around 5A so under the 10A limit on the outlet.

If the outlet is a strict 10A, then you cannot run a fridge off it as the initial inrush current when a compressor starts up is in the range of 10x the running power and way more than 10A. (This assumes the fridge is not fitted with a soft-start kit. Air conditioners often are, but I doubt fridges ever are as standard).

For a real life ACTUALLY DONE IT - AND FAILED example, try running a "5A" fridge off the Load circuitry of a Victron MPPT controller, which depending on the model are 10,15, or 20A outputs. As soon as the fridge kicks in, the circuit cuts out due to current overload.

I run a compressor fridge for the past 3-4years, of a 6A socket but wired the socket myself with 4mm2 solar cable directly from the DC distribution, fused at 5A. The fridge original power lead I shortened it to 0.5m, just enough to reach the socket, and reduce voltage drop. The inrush is for few milliseconds, and not a issue. There is nothing in that circuit to stop a inrush current. On the solar charger load outlet is switched by mossfets, and a inrush may not pass, but certainly small and short overloads will be tolerated.

 

[Cush]

I read it as use the power bank to run the inverter to feed the hookup which would charge the lithium and the power bank.
I may have misunderstood.

Ah. Sorry. Inverter built in to the lithium driven power bank to give it a 240v outlet. American version has a socket designed for an RV. Use the 240v outlet as you would an ehu post. Lithium in the power bank would get depleted but extends the onboard capacity of my lead acid. Can be charged by existing solar (in theory) or from a domestic socket quickly at home. Sorry for causing confusion

 

[Hoovie]

I run a compressor fridge for the past 3-4years, of a 6A socket but wired the socket myself with 4mm2 solar cable directly from the DC distribution, fused at 5A. The fridge original power lead I shortened it to 0.5m, just enough to reach the socket, and reduce voltage drop. The inrush is for few milliseconds, and not a issue. There is nothing in that circuit to stop a inrush current.

Totally different setup.

On the solar charger load outlet is switched by mossfets, and a inrush may not pass, but certainly small and short overloads will be tolerated.

In theory maybe. In practice, at least with the Victron MPPTs, it is not the case that an In-rush will be accepted.
May be the people who I advised not to connect the fridge to the load but did so anyway, along with some lights imagined being plunged into darkness when the fridge tried to start?
Using the LOAD is fine - and I use it to drive ALL my Hab circuits (Load rated at 20A, Hab circuits are always less), but I have nothing that power-surges like a compressor on that set of outputs)

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[Raul]

I actually run a compressor fridge of a 6A socket. The socket is not the issue, but the rest of the circuit has to take that load, that’s the only take.
The load terminals on charger, I would only use them for lighting or something well below that rating, and certainly light duty cycle. No fridge there, I was just explaining why a inrush is not suitable for that supply.

The op has a different dilemma, integrity off the existing circuit where is going to plug into that socket. I wouldn’t.

 

[Hoovie]

I actually run a compressor fridge of a 6A socket. The socket is not the issue, but the rest of the circuit has to take that load, that’s the only take.
The load terminals on charger, I would only use them for lighting or something well below that rating, and certainly light duty cycle. No fridge there, I was just explaining why a inrush is not suitable for that supply.

The op has a different dilemma, integrity off the existing circuit where is going to plug into that socket. I wouldn’t.

Your socket is rated at 6A maybe, but is it just connected with some cable to the battery and not going through any electronics?

My comment was regarding not a basic output socket like you are talking about but a socket on a power station which is rated at 10A and may or may not have an absolute hard limit at the current.
I don't know. I doubt he knows. Do you know?

 

[Raul]

Somebody most of done a tear down of one of those power banks.

 

[our poppy llll]

Hi, when your lithium battery bursts into flames and burns out your pride and joy, make sure you are not sleeping in it and it’s not under your carport next to the house. These batteries are safe but are prone to overheating when unconventional use is applied, it may well work, but ask the manufacturer what they think, let us know in a few weeks after they stop laughing and realise you are serious.

 

[nabsim]

Your socket is rated at 6A maybe, but is it just connected with some cable to the battery and not going through any electronics?

My comment was regarding not a basic output socket like you are talking about but a socket on a power station which is rated at 10A and may or may not have an absolute hard limit at the current.
I don't know. I doubt he knows. Do you know?

Ads Ventures runs his compressor fridge from his power bank, don’t watch him very often so can’t say for sure if it’s 12v or 230v though. May be worth looking on his YouTube if someone wants to know for sure

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[Cush]

Hi, when your lithium battery bursts into flames and burns out your pride and joy, make sure you are not sleeping in it and it’s not under your carport next to the house. These batteries are safe but are prone to overheating when unconventional use is applied, it may well work, but ask the manufacturer what they think, let us know in a few weeks after they stop laughing and realise you are serious.

Not trying to be one of those people but just wondering which post that referenced lithium you are replying to? The OP? Me?