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dlambl 12.1K Views
Aug 11, 2025 8:55 PM

Anker SOLIX C300X 288Wh DC LFP Portable Power Station w/ Strap

$140

$200

30% off
+ Free Shippingat eBay
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Best Buy via eBay has Anker SOLIX C300X 288Wh DC LFP Portable Power Station w/ Strap (SOLIX-28-PS) on sale for $139.99. Shipping is free.

Best Buy has Anker SOLIX C300X 288Wh DC LFP Portable Power Station w/ Strap (SOLIX-28-PS) on sale for $139.99. Shipping is free. Otherwise, select store pickup where available.

Thanks to Community Member dlambl for finding this deal.

Features:
  • With 90,000mah, up to 300W output, and 7 outlets(including 2x 140W Input/Output) , Keep all essential devices powered on the go or while camping/Power backup usage.
  • Power all your tech with versatile ports, including 1× car socket (120W), 2× USB-C (140W), 1× USB-C (100W), 1× USB-C (15W), and 2× USB-A (12W)
  • With compact portable strap and handle design, taking travel-friendly power offgrid has never been this easy. This power station is 30% smaller than the industry average.
  • With stretchable built-in light for multiple outdoor situations and as a indoor backup power when home office and blackouts. Adapted 100W solar panel make it long-lasting during outdoor discovery or working, no worry day and night.
  • Use dual 140W-USB-C (total 280W) to charge this power staticon to 100% within 1.5 hours. Use solar panels to recharge in under 3.2 hours.
  • Thanks to Anker SOLIX's Technology, C300X DC featuring a 140W 2-way USB-C port, which can deliver up to 140W of power to charge your devices quickly, and you also can use it to fast recharge the C300X DC at the same time. Whether you're at home, on the road, or exploring the great outdoors, the Anker SOLIX C300X DC keeps you connected with its rapid charging and quick recharging
  • This power station features LiFePO4 batteries with 3,000 cycles, ultra-durable electronic components, a smart temperature control system that monitors up to 100 times per second, and an impact-resistant structural design. Altogether, the portable power station is built to last over a decade
  • This travel-friendly power station is 30% smaller than similar products, so strap up and go anywhere.
  • Featuring LiFePO4 batteries, smart temperature control, and impact-resistant design ensures this power station lasts for years, providing reliable and durable performance in any situation.
  • When your journey needs endless charging, do so seamlessly and sustainably with a 100W solar panel.

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • This power station is rated 4.8 stars overall based on 30 reviews.
    • Includes a 3-year warranty.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by dlambl
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Best Buy via eBay has Anker SOLIX C300X 288Wh DC LFP Portable Power Station w/ Strap (SOLIX-28-PS) on sale for $139.99. Shipping is free.

Best Buy has Anker SOLIX C300X 288Wh DC LFP Portable Power Station w/ Strap (SOLIX-28-PS) on sale for $139.99. Shipping is free. Otherwise, select store pickup where available.

Thanks to Community Member dlambl for finding this deal.

Features:
  • With 90,000mah, up to 300W output, and 7 outlets(including 2x 140W Input/Output) , Keep all essential devices powered on the go or while camping/Power backup usage.
  • Power all your tech with versatile ports, including 1× car socket (120W), 2× USB-C (140W), 1× USB-C (100W), 1× USB-C (15W), and 2× USB-A (12W)
  • With compact portable strap and handle design, taking travel-friendly power offgrid has never been this easy. This power station is 30% smaller than the industry average.
  • With stretchable built-in light for multiple outdoor situations and as a indoor backup power when home office and blackouts. Adapted 100W solar panel make it long-lasting during outdoor discovery or working, no worry day and night.
  • Use dual 140W-USB-C (total 280W) to charge this power staticon to 100% within 1.5 hours. Use solar panels to recharge in under 3.2 hours.
  • Thanks to Anker SOLIX's Technology, C300X DC featuring a 140W 2-way USB-C port, which can deliver up to 140W of power to charge your devices quickly, and you also can use it to fast recharge the C300X DC at the same time. Whether you're at home, on the road, or exploring the great outdoors, the Anker SOLIX C300X DC keeps you connected with its rapid charging and quick recharging
  • This power station features LiFePO4 batteries with 3,000 cycles, ultra-durable electronic components, a smart temperature control system that monitors up to 100 times per second, and an impact-resistant structural design. Altogether, the portable power station is built to last over a decade
  • This travel-friendly power station is 30% smaller than similar products, so strap up and go anywhere.
  • Featuring LiFePO4 batteries, smart temperature control, and impact-resistant design ensures this power station lasts for years, providing reliable and durable performance in any situation.
  • When your journey needs endless charging, do so seamlessly and sustainably with a 100W solar panel.

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • This power station is rated 4.8 stars overall based on 30 reviews.
    • Includes a 3-year warranty.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by dlambl

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26 Comments

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Aug 11, 2025 11:35 PM
29 Comments
Joined Jan 2018
FreakyFridayAug 11, 2025 11:35 PM
29 Comments
I have one. I like it. Not much to say. Works. Use it to charge laptops, wireless routers when traveling etc…
1
Aug 11, 2025 11:48 PM
332 Comments
Joined Jun 2011
gpturnerAug 11, 2025 11:48 PM
332 Comments

Our community has rated this post as helpful. If you agree, why not thank

I have one also. I actually like that it does NOT have a built in inverter. If you think about it you can always plug an inverter into it if you need to. But 99% of the use case for it you do not need one.
You also can input on both the PD ports at the same time for a fast charge. It also can charge two laptops at the same time and works with my non-anker 100W solar panel.
Perfect size for camping and also to use to run my 12V cooler while parked on road trips. ( works like a UPS that way, I have a 12v cigarette charger that does a 100W that I plug into this to keep it charged. Then I plug my cooler into the 12v port on this. So when I stop the car it automatically keeps the cooler powered)
2
Aug 11, 2025 11:53 PM
96 Comments
Joined Dec 2014
sdhlAug 11, 2025 11:53 PM
96 Comments
Is it usual for peak and rated wattage to be the same?
Does that mean it cannot accept any spikes over 300w or would you expect this might be a conservative underestimate by Anker?
Maybe best buys specs are wrong?
Anker's page says 600w peak for c300, best buy says 300w peak for c300x..
AI summary says both are peak 600.. what's the correct spec?
Aug 11, 2025 11:59 PM
1.1K Comments
Joined Dec 2011
dartmouth01Aug 11, 2025 11:59 PM
1.1K Comments
No AC inverter is limiting. I think I'd rather go for the costco River 3 Plus for $199, which has AC plugs
4
Aug 12, 2025 12:42 AM
1.6K Comments
Joined Mar 2023
BigBGAug 12, 2025 12:42 AM
1.6K Comments

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Be sure to do your research on Anker power banks like this. They have some weird dumb behavior with ports shutting down when they don't use enough power, and then the only way to get them working again is to fully unplug the cable and plug it back in. You can't use these as a UPS for your Raspberry Pi or laptop as a result.
3
Original Poster
Aug 12, 2025 12:44 AM
22 Comments
Joined Jul 2017
dlambl
Original Poster
Aug 12, 2025 12:44 AM
22 Comments
Quote from sdhl View quoted comment :
Is it usual for peak and rated wattage to be the same? Does that mean it cannot accept any spikes over 300w or would you expect this might be a conservative underestimate by Anker?Maybe best buys specs are wrong?Anker's page says 600w peak for c300, best buy says 300w peak for c300x..AI summary says both are peak 600.. what's the correct spec?
Ah, well this is the DC model without an AC inverter, and the maximum output between all ports at one time is 300W.

The 600W peak applies to the model with the AC inverter (the traditional 3 prong outlets). The manual for this model (the DC, without the 3 prong outlets) details out the output distribution with multiple ports in use at one time.

https://cdn.shopify.com/s/files/1...1726199909

The 600W SurgePad, for the model with the AC inverter, not this model, is:

"SurgePad™ Anker SOLIX C300 Portable Power Station supports the SurgePad™ feature for up to 600W AC output. SurgePad™ automatically turns on when the total output exceeds the rated output, allowing the power station to deliver rated power to high-wattage devices. SurgePad™ does not function in bypass mode (when the power station is being charged with the AC output on). SurgePad™ works better with devices that generate heat, but does not support precision instruments and other devices that have voltage protection or strict voltage requirements. To see if SurgePad™ works with your high-wattage devices, try powering them with the power station."

It means that for that model with the 3 prong outlets, if your device uses a surge of wattage when it first powers on, the AC model can support up to a 600W surge -- but the sustained output is rated at a maximum of 300W (think of a vacuum cleaner when you first turn it on, this is called "inrush current").
1
Aug 12, 2025 1:48 AM
1.8K Comments
Joined Sep 2018
gathermewoolAug 12, 2025 1:48 AM
1.8K Comments
Anyone with a CPAP and a 12VDC adapter use this and have some insight?

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Aug 12, 2025 2:20 AM
1K Comments
Joined Jun 2009
greenshellAug 12, 2025 2:20 AM
1K Comments
C300 DC vs C300X DC, the difference is color, right?
Aug 12, 2025 2:27 AM
441 Comments
Joined Jun 2011
Im4DealAug 12, 2025 2:27 AM
441 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from gathermewool View quoted comment :
Anyone with a CPAP and a 12VDC adapter use this and have some insight?
I used it with a for two nights, no water chamber heat, plus I charged my cell phone, and it was around 35%.
1
Aug 12, 2025 2:30 AM
1.8K Comments
Joined Sep 2018
gathermewoolAug 12, 2025 2:30 AM
1.8K Comments
Quote from Im4Deal View quoted comment :
I used it with a for two nights, no water chamber heat, plus I charged my cell phone, and it was around 35%.
Which model, if you don't mind
Original Poster
Aug 12, 2025 4:33 AM
22 Comments
Joined Jul 2017
dlambl
Original Poster
Aug 12, 2025 4:33 AM
22 Comments
Quote from greenshell View quoted comment :
C300 DC vs C300X DC, the difference is color, right?
I wondered this too, as I own the C300 DC and not the C300X DC. It appears that it is the color, and also that the X has the "Adjustable Carrying Strap", which appears to be different than the handle on the non-X model. I'm not sure if this is in lieu of or in addition to, though.
Original Poster
Aug 12, 2025 4:37 AM
22 Comments
Joined Jul 2017
dlambl
Original Poster
Aug 12, 2025 4:37 AM
22 Comments
Quote from BigBG View quoted comment :
Be sure to do your research on Anker power banks like this. They have some weird dumb behavior with ports shutting down when they don't use enough power, and then the only way to get them working again is to fully unplug the cable and plug it back in. You can't use these as a UPS for your Raspberry Pi or laptop as a result.
That's interesting and a critical callout for the use case. I had just noticed that the EcoFlow Trail series has a "low current mode," too, but even this sounds like it only lasts 3 hours before shutting off the unit.

From the EcoFlow TRAIL Series DC product page:

"How to turn on low current mode?
1. Connect a low-power device to the USB-A port.

2. Double-click the multi-function button. When the USB-A port flashes, low-current mode is enabled.

3. Low-current mode will last for 3 hours. You can double-click to exit early."
Aug 12, 2025 11:14 AM
4.8K Comments
Joined Mar 2007
square_oneAug 12, 2025 11:14 AM
4.8K Comments
have one. works great for a weekend of camping to charge various things and run a DC inflator for SUPs.
Aug 12, 2025 12:13 PM
706 Comments
Joined Nov 2010
exilepaAug 12, 2025 12:13 PM
706 Comments
Quote from dlambl View quoted comment :
I wondered this too, as I own the C300 DC and not the C300X DC. It appears that it is the color, and also that the X has the "Adjustable Carrying Strap", which appears to be different than the handle on the non-X model. I'm not sure if this is in lieu of or in addition to, though.
It appears it is "in lieu of" from the specifications listed on "What's Included" on the BB site.

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Aug 12, 2025 1:24 PM
477 Comments
Joined Dec 2007
wcsAug 12, 2025 1:24 PM
477 Comments
Quote from dartmouth01 View quoted comment :
No AC inverter is limiting. I think I'd rather go for the costco River 3 Plus for $199, which has AC plugs
I think you're missing the point. The DC versions are supposed to be more on the go units - they removed the inverter to reduce size, weight, and cost. They make a c300 with AC that weighs 50% more than the c300 dc.

C300 DC: 6.2 lbs
C300 with AC: 9.1 lbs
Ecoflow river 3 plus 286wh: 10.4lbs

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