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Upgrade your charging experience with the Efest LUC V4 4-Channel Battery Charger, a high-performance solution for your 3.6V/3.7V Lithium Ion IMR batteries. Designed for versatility and efficiency, this advanced charger offers four independent channels with selectable amperage options to suit your charging needs. Choose from 0.5A across all four bays, 1A for faster charging, or rapid 2A charging in two bays. The intuitive digital display keeps you informed with real-time updates on voltage, amperage, and the charging status of each battery. More than just a charger, the LUC V4 doubles as a power bank with a 1A USB output, adding a layer of utility for charging other devices.
Key Features:
- Customizable Charging Rates: Adjust charging rates to 0.5A x 4, 1A x 4, or 2A x 2, providing flexibility for standard, fast, or rapid charging needs.
- Intelligent Digital Display: Real-time monitoring of voltage, amperage, and charging progress for each battery ensures precise management.
- Power Bank Functionality: Includes a 1A USB output, enabling the charger to double as a power bank for charging external devices.
- Comprehensive Safety Features: Integrated reverse polarity protection ensures safe operation by preventing damage from incorrectly inserted batteries.
- Broad Compatibility: Supports a wide range of Lithium Ion IMR batteries, including sizes from 10340 to 26650, making it suitable for various applications.
Battery Compatibility:
Compatible with: 3.6V/3.7V Lithium Ion IMR Batteries – 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
Technical Specifications:
- Input: AC 100V-240V 50/60Hz
- Output: DC 12V 2A
- Auto Cutoff Voltage: 4.23V ± 0.05V
- DC Input Power: DC 12V 2A
- Size/Type Compatibility: ✔ 18650, ✖ 20700, ✖ 21700
- AC/Input: Standard USA power plug
- DC/Input: Car charger adapter
What’s in the Box:
- Efest LUC V4 digital battery charger
- Standard USA power plug and car charger adapter
- Scratch-off validation serial number
- User manual and Warranty Service Card
⚠ Important Safety Warnings
Improper use of a battery charger can result in overcharging, short circuits, or damage to the battery, causing FIRE, EXPLOSION, or ELECTRICAL SHOCK. Users must follow all safety guidelines to ensure proper operation. Click here to review the full safety guidelines.
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Device Compatibility:
- Use the charger only for compatible battery types and sizes as specified by the charger manufacturer. Ensure the charger is appropriate for the battery chemistry, size, and protection status (e.g., unprotected or protected cells).
- Do not charge non-rechargeable batteries (e.g., alkaline or primary cells).
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Proper Use:
- Only charge batteries in a fireproof or non-flammable area. Avoid charging on beds, couches, or other flammable surfaces.
- Do not force a battery into the charger slot if it does not fit properly. This can damage the charger or battery and may result in unsafe charging conditions.
- Inspect batteries before charging: Do not charge if the battery casing, wrapper, or terminals are damaged, dented, leaking, or bulging.
- Never leave batteries unattended while charging. Monitor the charging process, and unplug the charger when charging is complete.
- Avoid exposing the charger to liquids, high heat, or direct sunlight.
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Inspection:
- Do not use the charger if the power cord, plug, or device is damaged.
- Inspect both the charger and the battery for any signs of damage before use.
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Storage & Handling:
- Keep the charger away from children and pets.
- When not in use, unplug the charger and store it in a cool, dry place.
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Prohibited Activities:
- Do not modify or disassemble the charger.
- Do not attempt to repair a damaged charger—replace it with a new one.
- Avoid using extension cords or adapters that exceed the manufacturer’s recommendations.
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Emergency Response:
- If the charger or battery emits smoke, sparks, or a burning smell, disconnect the power immediately and move the battery and charger to a safe area.
- In case of fire, use a Class D fire extinguisher or sand to extinguish the flames.
Disclaimer
IMR Batteries is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Battery chargers must only be used with compatible battery types and operated in accordance with manufacturer instructions. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to their customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.
Customer Reviews
Overall rating: 4.8 / 5 from 180 reviews.
Great store get all my batteries here, good charger as a replacement for an older one. Good job people!
Bought this to replace an old one which had a bad spring.
Very good product!
So far so good, I'll see how long it lasts before it quits working. Haven't had real good luck when purchased from other sellers. Lasted a couple months then quit for no reason.
Charger works great! Simple to use, love the speed charging feature.
Charger works great! Simple to use, love the speed charging feature.
Clear Display and quick charging speed. Happy with my purchase
This is the second one I’ve had the first one lasted me about 6 years charging battery’s everyday so I know there good
Great charger
Solid unit thats works great. This is my second unit. I use one for the house and have one for traveling. Tried the new version and it only lasted a week or so and was not as versitile as the LUC V4. I like having the ability to charge batteries while driving or riding using the 12V adapter.
Bought this to replace a POS Nitecore charger that didn't last 3 weeks back in 2015. This LUC v4 has served me well since, for now over 7 years, with daily use (only used 0.5A charging speed ever). The day this thing finally dies I will have 0 hesitations to buy another one.
Works well, this is my 3rd one.
Good product and great service
Great charger best charger ive ever bought
2nd one ive had last one lasted 3yrs until springs broke. imr was fast and easy.
I've been charging my batteries through the mod since I got it. This charger seems to give my batteries a more solid charge. The batteries seem to hold a charge much longer than when I charged them through my box mod. I would definitely recommend this charger and will buy it again if I need another one in the future!
This is the best charger we have ever had. I love how fast it works!
Great charger! Have had one for years. Just bought a second one.
I like these since they can be used with house current or from you auto
Mine came with a faulty power supply, LCD would constantly flicker and batteries would not charge. I had to buy a replacement 12v 2a power supply to get the charger to work. No fault of IMR, I'm sure they would've replaced the device, but shipping hassles weren't worth it to me. Charger itself works great so far after replacing the power supply.
Easy to use, outperforms my other charger by far. I especially love the high speed charging and other options available!
Charger work good, basic charger. Batteries hard to get in and out (had to lube up slide plates to get to work)
Reliable !
When charging started, Actual (calibrate Fluke meter) // Displayed voltage: Slot 1: 3.65 // 3.68 Slot 2: 3.64 // 3.73 Slot 3: 3.67 // 3.70 Slot 4: 3.74 // 3.72
This is my 2nd Efest LUC V4 4 channel battery charger. I wanted a spare to take with me in my car. Unfortunately, it didn't come with the 12 volt charger. What a bummer. But still an awesome charger. Best one I've had and I've had many different brands.
Very quality batteries and very quick delivery
My buddy recommended this one to me and for a good reason. Very simple to use, love the interface and I think imo the batteries charged quick. Thank you!
Amazing
Arrived in one piece and works great.
The best charger ive had yet! Works really well for my sony vtc6s, has multiple different charge modes for slow or fast charging.
Its an amazing charger! Works like a charm and does exactly what it's suppose to!
Charges fast and completely. Shuts off when charged to full. Excellent charger.
Very good charger
I really like the new charger I ordered. It is made well and charges great
works great as it should would buy again recommend it highly
This was the first product I purchased from IMR and has performed so well. I bought one for my mother and another for my office.
Bought this to replace my efest luc 2 after 5 years of service.
It charges your batteries quickly and safely every time. The digital display is nice that it lets you know how charged your batteries are. The display is pretty cool looking too, if that's your thing, the pictures don't really do it justice. As other have mentioned, the spring tension on each charge bay is pretty high, but it's a non-issue if you're paying attention to what you're doing when you're loading it. I haven't tried the USB power feature, so I can't speak to it's effectiveness, but you probably aren't buying this to use it as a power bank anyway.
Used it to recharge 16 batteries, nice chart indicator for each battery showing energy level achieved, good design!