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Description
Efest LUC V4 - 4-Bay LCD 18650 Battery ChargerEFest LUC V4 Charger: Power, Precision, and Versatility The EFest LUC V4 Charger is the ultimate solution for fast, efficient, and reliable battery charging. With its 4 independent charging channels and an intuitive large LCD screen, this charger offers unparalleled performance and ease of use. Equipped with advanced safety features like reverse polarity protection, short circuit protection, overcharge protection, and zero voltage activation, the LUC
EFest LUC V4 Charger: Power, Precision, and Versatility
The EFest LUC V4 Charger is the ultimate solution for fast, efficient, and reliable battery charging. With its 4 independent charging channels and an intuitive large LCD screen, this charger offers unparalleled performance and ease of use. Equipped with advanced safety features like reverse polarity protection, short-circuit protection, overcharge protection, and zero voltage activation, the LUC V4 ensures your batteries charge quickly and safely.
Key Features:
- Independent Charging Channels: Four slots with individual status monitoring.
- Large LCD Display: Clearly shows charging progress and battery voltage for precise control.
- Rapid Charging: Adjustable current options (0.5A, 1A, or 2A) to suit your battery needs.
- Advanced Safety Protections: Built-in safeguards against overcharging, short circuits, and reverse polarity.
- Wide Compatibility: Supports most 3.7V Li-ion or LiMn batteries, including 10440, 14500, 14650, 17670, 18350, 18650, 26650, and more.
- Auto Voltage Monitoring: Automatically detects and manages battery voltage.
- Versatile Power Options: Includes AC input and car adapter for charging at home or on the go.
Specifications:
- AC Input Power: 100-240V, 50/60Hz
- DC Input Power: DC 12V 2A
- Charging Current: 0.5A, 1A, or 2A (2A limited to channels 2 & 3)
- Auto Cut-Off Voltage: 4.23V ± 0.05V
- Compatible Batteries: 10440, 14500, 14650, 16340, 17670, 18650, 26650, and more.
Package Includes:
- EFest LUC V4 LCD Universal Charger
- AC Wall Plug or Cord
- User-Friendly Manual
- EFest LUC V4 Box
Safety Guidelines:
To ensure optimal performance and safety:
- Avoid overcharging or over-discharging batteries.
- Prevent short circuits and improper stacking.
- Inspect batteries regularly for damage and dispose of them responsibly.
The EFest LUC V4 Charger is the perfect combination of performance, safety, and versatility. Whether at home or on the go, it’s the ideal companion for keeping your batteries fully charged and ready for action.
This charger is compatible with the following Li-ion battery sizes: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340, 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500,18650,18700, 22500, 22650, 25500, 26500, 26650
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Beautiful and functional
This is the first espresso distribution tool I've ever used, so I wasn't sure if it would really make a difference. I haven't had a home espresso machine for 15+ years, so I figured now that I am home more, I'd get all the accessories to do it right.
This is a beautiful piece that is very functional. It's simple to use to even out the grounds to provide for a more even flow of water through the coffee. Since I got this and used it from my very first espresso, I actually didn't test doing it without this tool to see if it made a noticeable difference.
Because I've never used one before, I'm not sure what features to compare to others, so I don't know if the current $24.99 is good or not. It seems high for such a simple product, and I probably would never consider getting it if I hadn't been given the opportunity to get one through the Amazon Vine program. But as part of my new espresso routine, I do think it contributes to making a delicious cup of coffee. It certainly can't hurt and is part of my regular ritual now.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Precision at Its Finest for Espresso Enthusiasts
Color: Black, Color: Black
As a passionate home barista, I recently incorporated the WDT Espresso Distribution Tool into my espresso routine, and I am absolutely thrilled with the results. This tool is a game-changer, providing unparalleled precision in coffee distribution. Here's why it deserves a solid 5-star review:
Pros:
Seven Needle Design: The 0.35mm seven needles of the WDT tool are ingeniously crafted, ensuring uniform distribution of coffee grounds in the portafilter. This results in a more consistent and even extraction, elevating the quality of each shot.
Eliminates Clumping: One of the standout features is its ability to eliminate clumping effectively. The fine needles effortlessly break up any clumps in the coffee grounds, guaranteeing a smooth and even bed for tamping.
User-Friendly: The WDT tool is incredibly easy to use. The ergonomic design allows for a comfortable grip, and the needles move smoothly through the coffee grounds. It has become an essential part of my pre-brew routine, taking only seconds to create a uniform coffee bed.
Sturdy Build: The build quality is top-notch. The stainless steel construction not only gives the tool a premium feel but also ensures durability. It's a tool that feels like it's built to last, making it a worthwhile investment for any espresso enthusiast.
Enhanced Espresso Flavor: The consistent distribution achieved with the WDT tool translates to a more balanced and flavorful espresso. The precision it offers has noticeably improved the taste profile of my shots.
Easy to Clean: Cleaning the WDT tool is a breeze. The design minimizes any grounds getting stuck, and a quick rinse under water is all it takes to keep it ready for the next use.
In summary, the WDT Espresso Distribution Tool has exceeded my expectations in every aspect. Its thoughtful design, impeccable construction, and the positive impact on espresso quality make it a must-have for any serious home barista. If you're looking to take your espresso game to the next level, the WDT tool is an excellent investment that delivers consistent and exceptional results. A solid 5-star recommendation from a satisfied coffee enthusiast!
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Reviewed in the United States on January 18, 2024
★★★★★ 5
A Must Have Tool for Any Home Barista
Color: Black
I didn’t realize how much I needed this tool until I bought it, and now I use it all the time. It’s the perfect companion to my espresso machine and really helps improve my espresso puck preparation. The quality is great, it’s easy to use, and it adds more capability and consistency to my home brewing setup. I would absolutely recommend this to anyone serious about improving their home espresso experience.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Sturdy tool for improving coffee distribution
Color: Black
For those who do not know what this tool does:
The Weiss Distribution Technique (WDT) is a distribution method for espresso making, by which you use the tool to stir the coffee while it sits in the portafilter. You should use a portafilter funnel of the same size to avoid spilling grinds. The stirring action breaks up clumps and evens out the density of coffee within the puck. The result is reduced channeling and more even extractions.
Who needs this tool:
Those without a conical burr grinder, where the oil and variety of grind sizing may cause clumping, will benefit from this tool. Those with a decent conical burr grinder will find minimal benefit from this tool. I'm using a Breville Pro and do not see a huge improvement myself, for example.
Quality:
The build quality of this tool is excellent. You can add from one to seven needles, with many folks saying three is the sweet spot for best distribution. I've been using it for over a month and none of the needles have bent. The stand is solid aluminum and well-made, but it doubles as a protector of the needles. I just clean with a quick rinse and a wipe before returning it to its stand.
Outcome:
I did not realize most of the info above until after purchase. So my puck is solid, the pull is clean, and my coffee tastes great with a Breville Pro. However, this tool has a minimal amount to do with that. It is a worthwhile tool for those with a lower-end grinder, especially non-Burr grinders, and it is aesthetically-pleasing and well-made, which is why I rate it 5 stars overall. It also is of good value compared to more expensive variants.
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Reviewed in the United States on June 12, 2023
★★★★★ 5
Top quality tool that improves espresso extraction
Color: Gray
Fantastic and easy to use. Stand sits on top of espresso machine and the WDT tool is always ready, no unscrewing. Upgraded from a screw-shut version and couldn't be happier. Comes with extra needles which I hope to never need. Easy to recommend
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Reviewed in the United States on May 24, 2026
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