Explain this!! Electrical drain overnight! (3 Viewers)

[Coastal Cruiser.]

It might as well all be in German, I am sure I am not on my own when I say I have not got a clue what you are all talking about . Mind blowing

Wake up
Even I got the bit about plugging in the bollard then unplugging and to me that’s all you need to know

 

[Howard H]

Wake up
Even I got the bit about plugging in the bollard then unplugging and to me that’s all you need to know

That is all I know ,plug in and then shout “have we got electric” . Job done anything further than that it’s an electrician job

 

[Coastal Cruiser.]

That is all I know ,plug in and then shout “have we got electric” . Job done anything further than that it’s an electrician job

Ditto

 

[Lenny HB]

When the switch is switched to ‘charger only’, only the battery charger of the inverter/charger will operate (if mains voltage ispresent). The input voltage is also switched through to the ‘AC out’ terminal in this mode.

I got it wrong, young Eddie has just corrected me on this, as I said I'm still learning about the Multiplus.
Certainly is an awesome bit of kit.

 

[AdrianChen]

I got it wrong, young Eddie has just corrected me on this, as I said I'm still learning about the Multiplus.
Certainly is an awesome bit of kit.

They are good aren't they, It was easier for me, they operate in much the same way as the Mastervolt kit that I had before.....

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[Dutch 68]

Tell me about it

Are you all set for a repeat overnight

 

[Lenny HB]

Are you all set for a repeat overnight

He is dumb enough to try.

 

[WESTY66]

Charged it up to around 94% ehu topped up with solar most of day, then took the ehu lead out and just did normal stuff, tv on phones charging, lights on and alde on (gas)
Soc last night was 90%
Soc this morning 86%
So all is good again
Thank you for all the contributors to this thread I have learned from it!!
Mainly that I need more solar and another battery

 

[suavecarve]

Soc last night was 90%
Soc this morning 86%

Did I just read that you used 24 amps overnight ?

 

[eddie]

Charged it up to around 94% ehu topped up with solar most of day, then took the ehu lead out and just did normal stuff, tv on phones charging, lights on and alde on (gas)
Soc last night was 90%
Soc this morning 86%
So all is good again
Thank you for all the contributors to this thread I have learned from it!!
Mainly that I need more solar and another battery

And read instructions???

Nah lol

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[Al n Val]

Thank you for all the contributors to this thread I have learned from it!!
Mainly that I need more solar and another battery

and another B2B

 

[Al n Val]

Did I just read that you used 24 amps overnight ?

90-86=

 

[MichaelT]

And read instructions???

Nah lol

No he's a bloke, we don't read manuals

 

[MichaelT]

90-86=

600a batteries so 4% is 24a....

 

[WESTY66]

Shortish drive to Michelstadt, now at 100%

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[WESTY66]

Did I just read that you used 24 amps overnight ?

I think the multiplus uses a bit and all the other bits of the system

 

[peterc10]

After getting a headache reading all of this, I am glad that I applied the KISS system. A charger to charge and an inverter to invert.

 

[Lenny HB]

I think the multiplus uses a bit and all the other bits of the system

About 1.4 amps on standby so over 10 hours 14ah.
Our first day with a Multiplus we used 120ah over 24 hours.

 

[eddie]

No he's a bloke, we don't read manuals

That's how made my money

 

[Coastal Cruiser.]

That's how made my money

Plenty of “suckers” around
Hang on you took £3.5k off of me

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[funflair]

About 1.4 amps on standby so over 10 hours 14ah.
Our first day with a Multiplus we used 120ah over 24 hours.

Do you need the multiples on 24 hrs, our Buttner just gets turned on to use and then turn itself off when it has been idle for a while.

 

[Lenny HB]

Do you need the multiples on 24 hrs, our Buttner just gets turned on to use and then turn itself off when it has been idle for a while.

I've temporarily wired in a switch in until I get my Raspberry Pi set up. Also going to try the AES setting which has a very low standby current but often doesn't switch on with light loads, shouldn't be a problem for what we use it for.

 

[LithiumConvert]

After getting a headache reading all of this, I am glad that I applied the KISS system. A charger to charge and an inverter to invert.

And gas for energy.

 

[Raul]

I've temporarily wired in a switch in until I get my Raspberry Pi set up. Also going to try the AES setting which has a very low standby current but often doesn't switch on with light loads, shouldn't be a problem for what we use it for.

I believe you can set the power limit to trigger the inverter on AES mode, from memory as low as 40w, and it will eat 2w, a pulse every 2 seconds. The phoenix inverters have this set on the on-off switch, second position. The multiplus as you know needs setting in VE bus.

 

[Mike Hawkins]

Here is a wild theory for those who really understand these things to pull apart.

EHU plugged in and runs out of credit - Multiplus switches to inverter mode - Inverter provides different AC using out of phase 115V down positive and negative wires - EHU still plugged into bollard where negative wire is earth bonded - Inverter sending 115V to earth - 12V battery powering drain to earth.

Answer, unplug the EHU as soon as credit runs out?

I would do nothing at this stage but wait until you can replicate the experience. It might just be a dodgy power input; at least get that out if the way first.

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[roxburd]

On smaller appliances, I have seen cases where the charging circuit is not open circuit when it's no longer charging. So if the appliance presents power on the charging lead, there will be current/drain.
I think a lot of car battery chargers do that.
For that reason, I always disconnect once no longer charging.

 

[roxburd]

On smaller appliances, I have seen cases where the charging circuit is not open circuit when it's no longer charging. So if the appliance presents power on the charging lead, there will be current/drain.
I think a lot of car battery chargers do that.
For that reason, I always disconnect once no longer charging.

"In the reverse-biased region, diodes have a small leakage current"
And the conversion from AC to DC is done with diodes.
So yes, my guess is that they took the power back... to warm up their charging station

 

[French Charlie]

Wake up
Even I got the bit about plugging in the bollard then unplugging and to me that’s all you need to know

Had a similar problem 6 days in to a tour of Spain. All going extremely well with no need for EHU on LiFePo 150 Ah hab battery with 275 watts solar. Day 3 on a site in Seville no hook up, total hab battery crash with engine battery down to 33%. Thank the good lord for the battery master fitted by Vanbitz. So had the new battery failed, had I snagged the solar panel cable, or was it just a system snag. None of those. Traced it down to my son who was visiting leaving the fridge door ajar in temperatures of over 30c overnight. Poor bloody fridge was manfully attempting to chill Seville.