HKM-498259 DIY Mobile Power Box for Custom Power Bank and Battery Charger with Dual Inputs and LCD Display
SKU: 37233673197

HKM-498259 DIY Mobile Power Box for Custom Power Bank and Battery Charger with Dual Inputs and LCD Display

Sale price$71.99 Regular price$79.99
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

HKM-498259 DIY Mobile Power Box for Custom Power Bank and Battery Charger with Dual Inputs and LCD DisplayIntroducing the HKM 498259 DIY Mobile Power Box, your ultimate solution for a custom power bank and battery charger. This versatile device allows you to create a power bank tailored to your needs using four 18650 lithium ion batteries, enabling an external power supply that ensures your devices stay charged on the go. The HKM 498259 showcases dual input options an 8 pin connector and a Micro USB port. This convenient feature means you can easily

Introducing the HKM-498259 DIY Mobile Power Box, your ultimate solution for a custom power bank and battery charger. This versatile device allows you to create a power bank tailored to your needs using four 18650 lithium-ion batteries, enabling an external power supply that ensures your devices stay charged on-the-go.

The HKM-498259 showcases dual input options - an 8-pin connector and a Micro USB port. This convenient feature means you can easily calculate the power capacity without the hassle of multiple cables. Plus, with dual outputs, you can charge your smartphone, tablet, or other small electronic devices simultaneously, maximizing efficiency during your busy days.

Equipped with an independent circuit, this power box enables charging and discharging at the same time, ensuring there’s no interference between operations. The LCD display screen clearly indicates the battery status, giving you real-time information on remaining capacity for each battery.

Safety is paramount, which is why the HKM-498259 incorporates reverse polarity protection. If incorrectly connected, the internal chip automatically cuts power, preventing any potential damage and safeguarding other circuits from disruption.

Please note that this product does not include batteries, effectively minimizing risks associated with battery transportation. With the HKM-498259, you can confidently choose your own battery capacity and core, steering clear of low-quality and counterfeit options.

Optimize your charging solution with the HKM-498259 DIY Mobile Power Box, where customization meets reliability.

Size: 100*84*26 mm
Input: DC 5V-1A
Output: DC 5V-1A DC5V-2A

Properties:
DIY Power Bank and Charger: custom capacity by 4x18650 li-ion battery to make your own power bank, portable external supply, offers your devices enough power. Also a battery charger for 18650 battery, a dual-use item
Dual Inputs: 8 Pin and Micro USB dual inputs, only one cable can calculate the power bank, easy operation
Dual outputs, can charge cell phones, pads or other small electronic devices at the same time
Independent circuit: Independent battery, charge and discharge at the same time, can work together and not influence each other
LCD display screen: Each battery independently clearly shows subtitles, easy to read the remaining capacity
Reverse Polarity Protection: When it comes to reversed polarity, the chip inside will automatically identify and cut the power of the reverse polarity circuit, showing an empty battery level
Conversely polarity will not affect the normal operation of other circuits

note:
1. This product does not contain batteries. And effectively avoid the risks and troubles caused by battery transportation.
2. Guarantee quality, DIY custom capacity. Determine the capacity and battery core by yourself. Reject false capacity, low quality inferior batteries, and fake batteries.

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: 37233673197

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4.2 ★★★★★
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Verified Purchase
Susu
Houston, US
★★★★★ 5
It’s a great value
Color: Black
My son is very happy with this iPad case. It fits perfectly, provides great protection against scratches and minor drops, and feels durable and well-made. The stand feature is very convenient for watching videos, reading, or working. It also has a sleek design and doesn’t add much extra weight to the device.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
W
Verified Purchase
William Kasimer
New York, US
★★★★★ 5
Great case for iPad
Color: Black
I saw a similar Zugu case for my iPad and almost bought it, but it looked like my iPad might not fit, so I hunted and found this VIKESI case, which cost about 1/3 as much as the Zugu. It's close to perfect. My iPad fits perfectly, and the almost infinite number of angles that it permits, along with magnets to hold it in place make it ideal for working on a desk or in my lap. The only minor downside is that it's on the heavy side, probably because of the magnets. But unless you're travelling with it (I've switched to a small Fire tablet for travel), that won't be an issue. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
S
Verified Purchase
S. Sirico
Carnegie, US
★★★★★ 5
ipad cover
Color: Rose
love it. light but durable. like how it can be hinged from either side horizontally. no can do vertically. great bargain and colorful, got pink, the stylus holders perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
L
Verified Purchase
L Shavonne
Charlottesville, US
★★★★★ 5
The magnet does not stick to the refrigerator as advertised.. UPDATE ( I love it and it does stick)
Color: Pink
Although it is a nice case, it seems sturdy and it is very beautiful, my main reason for purchasewas I loved the fact that it sticked to the refrigerator. I was very disappointed to see that it does not. It’s too heavy, and it immediately begins to slide. That is the reason why I could not give it more than three stars. It disappointed me enough to where I’m really considering returning the item. UPDATE: I found out how to make a stick to the refrigerator and I absolutely love it! I changed my review and my stars! I’m really happy.
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Reviewed in the United States on April 11, 2026
S
Verified Purchase
Steve Chavez
San Leandro, US
★★★★★ 4
Great Protection, Great Fit — One Small Flaw
Color: Forest Green
I really love this case. It protects the iPad well, fits perfectly, and is still easy to put on and take off. The pencil holder is especially nice — it keeps the Pencil secure without feeling loose or flimsy. My only complaint is that some USB‑A to USB‑C adapters don’t have enough clearance to plug in. The edge of the case blocks certain adapters from seating properly. It’s the only issue I’ve run into, but it’s worth mentioning if you rely on chunkier adapters. Aside from that, this is an excellent case and one I’m happy to use every day.
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Reviewed in the United States on April 9, 2026

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