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one of two new 12000xp delivered DEAD ?! what's next ?

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EG4 Eric
Posts: 959
Admin
(@eg4eric)
EG4 Online Support
Joined: 1 year ago

You will need to contact your distributor (Seller) to request an RMA for a replacement. You can mention to them that you would like an advanced replacement. If they are unable to assist you with that, you can reach out to us by phone or here, and we will be happy to look into it for you.


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(@dtbaker61)
Joined: 1 year ago

Estimable Member
Posts: 117

@eg4eric  The Seller (offgridsource.com) is giving me a total runaround. First requesting videos, then still photos, then the serial number, and then finally telling me they don't have any stock and can't send a replacement.

I have supplied videos showing that inverter remains dead after connecting and turning on batteries, remains dead with PV input (290v strings), and there is no AC-in as this is an offgrid install. One of two inverters installed is up and running fine, the second was DOA, which

I discovered after installing! gggrrrrr.....

Is there any way that you (EG4 support team) can push from your side to drop-ship me an advance replacement ASAP so I can remove the DOA inverter, pop it into orginal shipping matls with a pre-approved RMA, and get it returned ASAP so I can finish this install ?

 


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EG4 Eric
Admin
(@eg4eric)
Joined: 1 year ago

EG4 Online Support
Posts: 959

@dtbaker61 
Send me your name, number, email and address and I will get someone to call you.


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(@dtbaker61)
Joined: 1 year ago

Estimable Member
Posts: 117

@eg4eric thanks, I am in contact with Callie in CustomerOutreach.... I think making progress.


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EG4 Eric
Admin
(@eg4eric)
Joined: 1 year ago

EG4 Online Support
Posts: 959

@dtbaker61 
Awesome! Let me know if you need anything else.


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(@dtbaker61)
Joined: 1 year ago

Estimable Member
Posts: 117

@eg4eric thanks Eric, I do have another major issue/question/bug that probably needs to get to Engineering and handled as a firmware update. I started a separate thread on the topic. The issue is that none of the eg4 AIOs seem to handle open loop charging of Lithium batteries "correctly" in a manner that is best for the batteries. I'd really like to see this improved for best battery life.


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EG4 Eric
Admin
(@eg4eric)
Joined: 1 year ago

EG4 Online Support
Posts: 959

@dtbaker61 
I can definitely pass this along to our team. Lead Acid mode wasn’t designed for lithium batteries, which is why it won’t operate exactly as it should. I’m not entirely sure, but I believe they’re planning to add a lithium type that supports charging and discharging by voltage without requiring communication for Lithium Batteries.


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(@dtbaker61)
Joined: 1 year ago

Estimable Member
Posts: 117

@eg4eric yes, the current open loop LFP charging is a bit of a kludge. I'd be happy to work with the team to define the desired behavior, and/or beta test when they have an update ready for it.


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Posts: 1
(@sullyman)
New Member
Joined: 3 months ago

I just received a 12000xp , box is pretty beat up !  Is there a way to test the inverter before I mount it to the wall ?  (I only have 120 volt power available at the moment.)

I would have posted this seperately,  but I just joined and cannot figure out how to do a new " Post" .....


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(@dtbaker61)
Joined: 1 year ago

Estimable Member
Posts: 117

@sullyman I think you need either:

- a 48vDC power supply, or

- 240vAC, or

- 100+vDC into PV MPPT


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Posts: 117
Topic starter
(@dtbaker61)
Estimable Member
Joined: 1 year ago

Just wrapping up this thread with a recommendation...

When installing and powering up a new Inverter with a battery you *should* use a pre-charge resistor when landing the final battery terminal connection unless you are certain the battery has a pre-charge built into its "on" button and BMS.

If connecting a battery with built-in precharge;
- battery is "off", battery breaker off
- land battery to inverter battery terminals
- battery breakers on, inverter batt breaker on
- LAST - turn battery "on" (which soft-starts the battery via pre-charge sequence internally)

If connecting a battery that does not have an internal precharge system (like a lead-acid bank):
- be sure load output (EPS) switch is off, and Load Breaker is off
- (battery is always on), inverter battery breaker is "on"
- land negative battery cable
- use an external pre-charge resistor WHILE LANDING the positive battery terminal to bleed off inrush current


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