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expiredTattyBear | Staff posted Sep 01, 2025 02:41 PM
expiredTattyBear | Staff posted Sep 01, 2025 02:41 PM

OUPES Mega 3 3600W 3072Wh Portable Power Station + 6 Yr. Warranty

+ Free Shipping

$1,078

$2,299

53% off
OUPES
28 Comments 12,969 Views
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Deal Details
Oupes has OUPES Mega 3 3600W 3072Wh Portable Power Station + 5+1 Yr. Warranty (register/upgrade warranty here) for $1299 - $220.83 w/ coupon code opsmega3 (applied at checkout) = $1078.17. Shipping is free.

Thanks to Deal Hunter TattyBear for sharing this deal.

Features:
  • 3,072Wh Capacity | 3,600W AC Pure Sine Wave Inverter (7,000W Surge)
  • Fully recharge in 1 hour with 3,900W Max. Input (AC+solar)
  • Expandable Up to 15.36kWh with B2 * 6
  • Seamless UPS Backup (2,200W Max)
  • Adjustable Recharge (900W-1,800W AC input)
  • LiFePO4 Battery with 3,500+ Life Cycles to 80%
  • 16 Outputs For Multiple Devices
  • Smart Control & Monitor in OUPES App

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Oupes has OUPES Mega 3 3600W 3072Wh Portable Power Station + 5+1 Yr. Warranty (register/upgrade warranty here) for $1299 - $220.83 w/ coupon code opsmega3 (applied at checkout) = $1078.17. Shipping is free.

Thanks to Deal Hunter TattyBear for sharing this deal.

Features:
  • 3,072Wh Capacity | 3,600W AC Pure Sine Wave Inverter (7,000W Surge)
  • Fully recharge in 1 hour with 3,900W Max. Input (AC+solar)
  • Expandable Up to 15.36kWh with B2 * 6
  • Seamless UPS Backup (2,200W Max)
  • Adjustable Recharge (900W-1,800W AC input)
  • LiFePO4 Battery with 3,500+ Life Cycles to 80%
  • 16 Outputs For Multiple Devices
  • Smart Control & Monitor in OUPES App

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Community Voting

Deal Score
+24
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28 Comments

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Sep 03, 2025 05:22 PM
1,119 Posts
Joined May 2007
think22Sep 03, 2025 05:22 PM
1,119 Posts
Quote from PowerfulKnob7210 :
How is the fan noise on the Oupes 2400 in passthrough mode?
I never pull power from it at the same time I'm charging. The fan only really comes on when I'm charging it (I think) and it's nothing crazy. Not silent by any means but not super annoying either. I'd say it's like having a small desk fan going, noise wise.
Sep 03, 2025 08:35 PM
3,168 Posts
Joined Jan 2004
warlock110Sep 03, 2025 08:35 PM
3,168 Posts
Quote from think22 :
Not to thread crap at all, but just fyi for those who don't know much about this stuff... this is 256 amp hours. You could get two 150Ah batteries for roughly $200 each plus a very solid inverter for $200 and have a 300Ah system for ~$600. Yes, this Oupes is much sleeker and sexier and way more mobile.

With that said, I've had an Oupes 2400 for two years and it's a champ. Zero issues. I'd buy from them again if I didn't want to build my own (and they are $578 on Walmart's site right now, about half what I paid two years ago).

Well it's an all in one solution, you need wires/breakers and a bunch of different bits to put together your own system. 5kw battery is roughly 800 bucks, plus a 5kw hybrid inverter is another 500. so you can put together a 5kw system for 1300 plus wires and breakers, probably 1500 at the end of the day. This is all in one 3kw for 1100.... it actually is really close to what you would get had you DIY. The bigger unit Mega 5 is roughly 2k, which is 500 bucks more than a DIY version.
Sep 03, 2025 11:37 PM
616 Posts
Joined Feb 2012
sphawk88Sep 03, 2025 11:37 PM
616 Posts
Quote from BoastfulNest162 :
haha, yes, i tried to use it with a tp-link smart switch, and it works pretty well. (just lower it to the low ac charging mode)
I do this with my EcoFlow batteries to charge during GA power super off peak, and learned the high settings will fry a 15A outlet (which also supports the comments online about EcoFlow DELTA pro exceeding its rated amperage - I since adjusted the AC charging without any issue).
Sep 04, 2025 01:18 AM
320 Posts
Joined Mar 2024
OliveAlpaca1201Sep 04, 2025 01:18 AM
320 Posts
Quote from sidosido :
240v? looks like no
No, mega 3 only 120v, pecron f3000 is better than it, only $949, I don't know why it can be the front page at this price lol
Sep 04, 2025 12:50 PM
1,119 Posts
Joined May 2007
think22Sep 04, 2025 12:50 PM
1,119 Posts
Quote from warlock110 :
Well it's an all in one solution, you need wires/breakers and a bunch of different bits to put together your own system. 5kw battery is roughly 800 bucks, plus a 5kw hybrid inverter is another 500. so you can put together a 5kw system for 1300 plus wires and breakers, probably 1500 at the end of the day. This is all in one 3kw for 1100.... it actually is really close to what you would get had you DIY. The bigger unit Mega 5 is roughly 2k, which is 500 bucks more than a DIY version.
lol if you say so
Sep 05, 2025 06:19 AM
70 Posts
Joined Jan 2025
BeigeBook5023Sep 05, 2025 06:19 AM
70 Posts
Oupes I did it again 🎶
Sep 06, 2025 07:56 PM
77 Posts
Joined Oct 2010
maifriendSep 06, 2025 07:56 PM
77 Posts
The unit doesn't not output 240V. All outlets output 120V.

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Sep 06, 2025 10:50 PM
330 Posts
Joined Jun 2023
JD713Sep 06, 2025 10:50 PM
330 Posts
Quote from warlock110 :
Quote from think22


:
Not to thread crap at all, but just fyi for those who don't know much about this stuff... this is 256 amp hours. You could get two 150Ah batteries for roughly $200 each plus a very solid inverter for $200 and have a 300Ah system for ~$600. Yes, this Oupes is much sleeker and sexier and way more mobile.

With that said, I've had an Oupes 2400 for two years and it's a champ. Zero issues. I'd buy from them again if I didn't want to build my own (and they are $578 on Walmart's site right now, about half what I paid two years ago).

Well it's an all in one solution, you need wires/breakers and a bunch of different bits to put together your own system. 5kw battery is roughly 800 bucks, plus a 5kw hybrid inverter is another 500. so you can put together a 5kw system for 1300 plus wires and breakers, probably 1500 at the end of the day. This is all in one 3kw for 1100.... it actually is really close to what you would get had you DIY. The bigger unit Mega 5 is roughly 2k, which is 500 bucks more than a DIY version.
This OUPES Mega 3 or Mega 5 is only output 120V with TT-30 AC CONNECTOR, which mean that you CAN NOT directly hook up to breaker panel. Because breaker panel needs 240V split phrase. So you have to buy a "VICTRON AUTO TRANSFORMER", which is cost $400 - $600.

On Sept 8, 2025, Ebay sale "ECO-WORTHY 48V 100Ah LiFePO4 Battery+5kW 48V Inverter Charger For Home Off-Grid" for $1063. This battery is 5120 wh, and inverter is 5000 watts 240v split phase. This inverter could directly hook up to home breaker panel. The post below:

https://slickdeals.net/f/18586732-eco-worthy-48v-100ah-lifepo4-battery-5kw-48v-inverter-charger-for-home-off-grid-1063-free-shipping?p=178953943#post178953943
Sep 06, 2025 10:58 PM
11,951 Posts
Joined May 2007
superslickzSep 06, 2025 10:58 PM
11,951 Posts
Quote from OliveAlpaca1201 :
No, mega 3 only 120v, pecron f3000 is better than it, only $949, I don't know why it can be the front page at this price lol
The pecron doesn't have wheels. To be able to move it around, you would need to buy a trolley, so when you add that to the price, it is about the same as this (before this deal expired).
Sep 06, 2025 11:04 PM
11,951 Posts
Joined May 2007
superslickzSep 06, 2025 11:04 PM
11,951 Posts
Quote from JD713 :
This OUPES Mega 3 or Mega 5 is only output 120V with TT-30 AC CONNECTOR, which mean that you CAN NOT directly hook up to breaker panel. Because breaker panel needs 240V split phrase. So you have to buy a "VICTRON AUTO TRANSFORMER", which is cost $400 - $600.

On Sept 8, 2025, Ebay sale "ECO-WORTHY 48V 100Ah LiFePO4 Battery+5kW 48V Inverter Charger For Home Off-Grid" for $1063. This battery is 5120 wh, and inverter is 5000 watts 240v split phase. This inverter could directly hook up to home breaker panel. The post below:

https://slickdeals.net/f/18586732-eco-worthy-48v-100ah-lifepo4-battery-5kw-48v-inverter-charger-for-home-off-grid-1063-free-shipping?p=178953943#post178953943
Most people getting something like this is not trying to hook it up directly to the panel. They probably already have a transfer switch with a generator ready 14-50 outlet installed by an electrician (or self-installed). Couldn't you hook up the tt-30 outlet to your home 14-50 outlet if you had the right cable/adapter?
Sep 06, 2025 11:05 PM
330 Posts
Joined Jun 2023
JD713Sep 06, 2025 11:05 PM
330 Posts
Quote from maifriend :
The unit doesn't not output 240V. All outlets output 120V.
Here is only $1063 and 5000 watts inverter with 240v split phase. This is what you looking for : https://slickdeals.net/f/18586732-eco-worthy-48v-100ah-lifepo4-battery-5kw-48v-inverter-charger-for-home-off-grid-1063-free-shipping?p=178953943#post178953943
Sep 06, 2025 11:10 PM
330 Posts
Joined Jun 2023
JD713Sep 06, 2025 11:10 PM
330 Posts
Quote from superslickz :
Quote from JD713
:
This OUPES Mega 3 or Mega 5 is only output 120V with TT-30 AC CONNECTOR, which mean that you CAN NOT directly hook up to breaker panel. Because breaker panel needs 240V split phrase. So you have to buy a "VICTRON AUTO TRANSFORMER", which is cost $400 - $600.

On Sept 8, 2025, Ebay sale "ECO-WORTHY 48V 100Ah LiFePO4 Battery+5kW 48V Inverter Charger For Home Off-Grid" for $1063. This battery is 5120 wh, and inverter is 5000 watts 240v split phase. This inverter could directly hook up to home breaker panel. The post below:

https://slickdeals.net/f/18586732-eco-worthy-48v-100ah-lifepo4-battery-5kw-48v-inverter-charger-for-home-off-grid-1063-free-shipping?p=178953943#post178953943
Most people getting something like this is not trying to hook it up directly to the panel. They probably already have a transfer switch with a generator ready 14-50 outlet installed by an electrician (or self-installed). Couldn't you hook up the tt-30 outlet to your home 14-50 outlet if you had the right cable/adapter?
NO, you CAN NOT hook TT-30 120v to 14-50 240v. 14-50 needs 2 HOT 120v WIRES, and TT-30 IS ONLY 1 HOT WIRE, which is 120v. From 120v to 240v, you must need AUTO TRANSFORMER.

Here is video show you how to convert 120v to 240v split phase with Victron Auto Transformer:
https://www.youtube.com/watch?v=eJBxMEpe9I4
Sep 10, 2025 05:54 PM
74 Posts
Joined Mar 2011
skank2dis1Sep 10, 2025 05:54 PM
74 Posts
I purchased this unit with 4 solar panels.
It works well. Used all 4 solar panels in parallel and I was charging at 800watts (solar was at 240watts each). Also, when I initally started to charge stuff, I had issues, but then realized that there are breakers on the side panel and they just needed to be flipped up. For the price, it was really good. I think you can double stack discounts so you can find stuff online. I used "thelabguys" for 5% discount.

Pretty good so far.

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