HKM-821331 High-Capacity Portable Energy Storage Power Supply with Multiple Output Ports
SKU: 30691823754

HKM-821331 High-Capacity Portable Energy Storage Power Supply with Multiple Output Ports

$162.00 $180.00
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Description

HKM-821331 High-Capacity Portable Energy Storage Power Supply with Multiple Output PortsIntroducing the HKM 821331 High Capacity Portable Energy Storage Power Supply, your reliable companion for all your power needs, both indoors and outdoors. With an impressive capacity of 330Wh and 90000mAh, this energy storage solution is designed to keep your devices running smoothly, no matter where you are. Equipped with multiple output ports, including 1 AC socket, 1 12V vehicle charging socket, 2 Type C interfaces, and 4 USB sockets, this

Introducing the HKM-821331 High-Capacity Portable Energy Storage Power Supply, your reliable companion for all your power needs, both indoors and outdoors. With an impressive capacity of 330Wh and 90000mAh, this energy storage solution is designed to keep your devices running smoothly, no matter where you are.

Equipped with multiple output ports, including 1 AC socket, 1 12V vehicle charging socket, 2 Type-C interfaces, and 4 USB sockets, this versatile power supply can simultaneously power a variety of devices. Whether you need to charge your laptop, LCD TV, outdoor lights, desktop computer, mobile phone, or other household electronics, the HKM-821331 has got you covered.

Constructed from high-grade plastic with a waterproof shell, this energy storage power supply not only feels durable but also stands up to the rigors of outdoor use. The innovative design incorporates a lithium battery composed of 20 high-quality 21700 cells, ensuring reliability and a long lifespan.

With a fast charging capability, the HKM-821331 can be recharged in just 6-8 hours via the DC input. Plus, for long-term outdoor adventures, you can connect one or more solar charging panels with a power output of 40W to harness the sun’s energy.

Safety is a top priority with this product. It features advanced protection mechanisms including input overcurrent protection, overcharge protection, short circuit protection, and reverse connection protection, providing you with peace of mind during use.

If you’re looking for a powerful and functional energy storage solution, the HKM-821331 Portable Energy Storage Power Supply is your perfect choice. Its compact size of 280*195*95mm makes it easy to transport, while offering the power you need for your essential devices. Experience convenience and reliability in energy storage with this high-capacity power supply today.

Product description:
This product is an integrated energy storage power supply with a capacity of 330WH/90000mA. It is equipped with 1 AC socket+1 12V vehicle charging socket+2 Type-C interfaces+4 USB sockets+2 DC input ports, which can supply power to multiple devices at the same time, with powerful functions. This system has excellent compatibility and can be used for charging notebook, LCD TV, outdoor light, desktop computer, mobile phone and other household electronic products. The energy storage power supply is made of high-grade plastic waterproof shell, which has a very good feel. It is a very powerful outdoor product!


Product information:

Mechanical structure: energy storage power supply
Storage medium: lithium battery
Battery specification: 21700 cell
Number of batteries: 20
Input voltage/current: 16.8V/10A
Output voltage: 220V
Charging time: more than 6-8 hours (DC input)
Power: 330Wh or above
Applicable models: notebook, LCD TV, desktop computer, stereo, car refrigerator, mobile phone, digital, and other products with power below 300W

Size:280*195*95mm


Features:
High-power and high-speed power supply: It has a 12V vehicle charging socket, an AC socket and four USB ports, and supplies power for one electric device and four mobile phones.
High-capacity battery: a single battery module with a capacity of 90000mah (330Wh) is equal to the power of 50 mobile phones.
Fast charging: This product is an integrated energy storage power supply, which can be plugged in and used at any time. You can also choose one or more solar charging panels with a single panel power of 40W for long-term outdoor use.
Safety and high quality: the circuit of this product has the design of input overcurrent protection, overcharge protection, short circuit protection and reverse connection protection, which improves the perfect safety guarantee for daily use.
High-quality battery cell: This product uses lithium battery from a first-class manufacturer as the battery cell, with stable performance and low heat output. There is no obvious change in performance within 300 times of charging and discharging.
High-grade and beautiful: This product is made of ABS industrial plastic, fashionable and atmospheric, with exquisite, smooth and comfortable feel.


Packing list:

1* Emergency power supply


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30691823754

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4.5 ★★★★★
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Product Reviews
D
Verified Purchase
D. C. Hill
Waukegan, US
★★★★★ 5
Very outdoor. Outstanding outdoor Wi-Fi — perfect companion for Starlink (even in winter!
Size: 1 Pack Outdoor, Style: Wi-Fi 7 BE5000, Size: 1 Pack Outdoor, Style: Wi-Fi 7 BE5000
I’m using this as the main router at an off-grid cabin, connected directly to a Starlink Mini, and it has been phenomenal. The coverage and stability are far better than the built-in Starlink Wi-Fi router, especially outdoors and around multiple buildings. This unit serves as the primary node in my network, with a few Deco M5 units extending the mesh, and the handoff between them is seamless. I’m getting reliable coverage over roughly 3 acres, including around the cabin, outbuildings, and yard — something the Starlink router couldn’t come close It’s mounted outdoors and has gone through freezing winter conditions with snow, ice, and icicles forming around it — zero issues so far. Performance hasn’t dropped, and it’s stayed rock solid. Setup was straightforward, management through the app is easy, and once it’s running you basically forget about it — which is exactly what i want. If you’re running Starlink at a rural property, cabin, farm, or large yard, this is an excellent upgrade and easily worth it. Strong signal, wide coverage, and dependable even in harsh conditions. Highly recommended..!.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
I
Verified Purchase
Its8up
Boise, US
★★★★★ 5
Great signal throughout the house and beyond
Size: 3 Pack, Style: Wi-Fi 7 BE5000
Got this set of 3 to replace the single rental EERO that the service provider put in when my mom got fiber. My biggest issue with the EERO was that the service provider set it up, meaning I had no way to control the device. Specifically, my mom is old and apt to click on scam ads or to call the number when a scam popup freezes her keyboard (thanks a lot, Zuckerberg). The only layer of protection I can give her is an adblock DNS, and to do so I need control. Also, I could not get her living room TV to connect to WiFi and signal was starting to drop off a bit in rooms farthest from that single device. At the time of purchase, this was the most economical 3 mesh device WiFi 7 system from a well established brand. The devices are a bit bulky, but are not eye sores and seem to be very well made. The available wall mount brackets for this style router appear to be more secure than the ones for the cylindrical models, and they won't look as goofy hanging on the wall which is another plus. Mounting brackets are sold separately. Her TV still does not connect to WiFi, so placed one of these near the TV and connected it via ethernet cable. The third is in one of the rooms farthest from the main base. The range is quite acceptable, with my phone getting full signal strength in the yard @ >50' from the house in some places. During setup, was given the option to set up MLO WiFi, aka Multi-Link Operation, which creates a second WiFi network that may provide higher throughput than the basic WiFi connection. It is not compatible with all devices, so likely best practice to connect lower need or 'potato quality' devices to the lower throughput base network (phones, TVs, tablets, guests, etc.). The fiber speed is around 300mbps. After extensive Speed Test usage to the point that they stopped allowing me to run Speed Test, both the Base WiFi and MLO WiFi performed similarly with possibly 10-20mbps higher average via MLO. My guess is that MLO may only be truly useful for gigabit connections. Going straight WiFi with these things doesn't add any significant latency or noticeable drop in throughput in my situation, but could be a concern in larger homes and/or when more walls/junk/metal is between mesh devices. Each of these has 2 ethernet ports, and hardwiring them together with ethernet cable will provide the strongest/fastest connection between mesh devices. The theoretical maximum reliable length is 328' (100 meters) for ethernet cable, so quality Cat6 cable could really put some distance between the main base and the 3rd mesh station (possibly with some WiFi dead spots in between). This is not unique to this system, as most mesh devices have 2 or more ethernet ports.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
B
Verified Purchase
Bow
Draper, US
★★★★★ 5
Very easy to set up a,works great
Size: 2 Pack, Style: Wi-Fi 7 BE5000
These improved the coverage in my house a lot and the speeds are incredible. The app, easy to set up and have not had a single problem since installing it, it's been 2 months.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
R
Verified Purchase
Rose Westfall
Belleville, US
★★★★★ 4
Lots to like!
Size: 1 Pack, Style: Wi-Fi 7 BE5000
Great router. Rename devices is easy and a welcomed option. Router reconnects quickly when provider's service drops. Remote access easy to setup. Allows the setup of 2.4 and 5 mHz networks, guest networks, iot networks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
J
Verified Purchase
JUSTIN CASE
Phoenix, US
★★★★★ 5
I GOT THE 3 PACK.
Size: 3 Pack, Style: Wi-Fi 7 BE5000
THESE DECO 7'S WORK GREAT, IT GIVES A LONGER RANGE FOR YOUR WIFI SIGNAL,AND YOU CAN CONNECT UP TO 150 THINGS THREW WIFI AND EACH UNIT HAS 2 ETHERNET PORTS. THEY ALL THREE WORK OF EACH OTHER AND COVERS OVER 6 THOUSAND SQUARE FEET,THIS MODEL IS THE INDOOR MODEL BUT THEY DO CARRY SEVERAL OUTDOOR MODELS AS WELL.IT ALSO SENDS OUT DUEL WIFI SIGNAL,2.4 AND 5, ITS WIFI 7,YOU CAN USE THEM WIRELESLY OR WITH ETHERNET BUT ONE DOES HAVE TO BE HOOKED UP TO YOUR MODEM. AND YOU CAN ADD MORE UNITS TO IT.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

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