Fast, Safe, and Versatile 4-Slot Smart Battery Charging for All Your Rechargeable Li-Ion Cells
Keep your essential electronics running with the KelvoxVie 18650 Battery Charger. Featuring four independent slots, universal 110–240V compatibility, and intelligent overcharge protection, it delivers dependable, balanced power to all your Li-ion batteries.
- 4 Independent Slots for Multi-Size Charging
- Universal 110–240V Worldwide AC Compatibility
- Smart Overcharge & Voltage Defense
- Individual Red & Green LED Statuses
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Smart Engineering Built for Maximum Efficiency and Complete Battery Protection
Simultaneous Multi-Slot Charging Power
Recharge up to four lithium-ion batteries at the same time. Each slot functions independently with dedicated 4.2V current control, allowing you to mix and match different cell sizes with complete confidence.
Universal Voltage for Global Usability
Engineered for international use with standard AC 110–240V input support. Charge your cells anywhere across the globe without heavy power transformers, making it perfect for both home use and travel.
Intelligent Auto-Cutoff Safety
Integrated smart circuitry continuously monitors voltage and stops current automatically when fully charged. This prevents cell degradation, overheating, and short circuits for longer life.
Trusted by Over 12,000 Everyday Tech Enthusiasts and Pros
"The KelvoxVie charger stands out for its reliable individual circuit management. It maintains precise 4.2V cutoff thresholds, preserving lithium cell health and preventing dangerous thermal runaway efficiently."
David Miller, Research Specialist
THE KELVOXVIE CHOICE
Engineered for Safer, Faster, and Smarter Daily Charging
Precision power management in every slot.
Independent 4-Bay Setup
Charge 1, 2, 3, or 4 cells at once without sharing circuit loads. Mix and match different battery capacities and dimensions seamlessly every time.
Wide Li-Ion Compatibility
Custom sliding contacts easily accommodate 18650, 18500, 18350, 16650, 16340, 14650, 14500, and 10440 rechargeable 3.7V lithium-ion battery sizes.
LED Status Lights
Clear indicators switch from solid red to green instantly when charging finishes, giving real-time visual monitoring at a glance.
Smart Thermal Protection
Built-in intelligent thermal regulators protect your batteries against over-voltage, reverse polarity, overcurrent, and severe overheating.
Worldwide Dual AC Support
Operates seamlessly on 110V to 240V AC inputs, providing global versatility whether you are working at home or traveling internationally.
Compact & Durable Build
Crafted from durable, heat-resistant ABS casing with a compact footprint designed to fit neatly on workbenches, desks, or in travel bags.
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What's Included in Your Order
1x 4-Slot Unit
Power Cable
User Manual
Dedicated Support Care
We back every KelvoxVie charger with responsive technical assistance, a 30-day money-back guarantee, and full product replacement coverage for total peace of mind with your purchase.
Frequently Asked
Answers to common questions
CUSTOMER REVIEWS
Real Feedback From Everyday Users
Marcus Vance
The independent slots are awesome. I can charge my headlamp 18650s and flashlight 14500s together without issues. The LEDs make checking battery status effortless.
Verified Buyer
Elena Rostova
Compact, reliable, and keeps batteries cool while charging. The auto-cutoff gives me great peace of mind. Excellent build quality and incredible value overall.
Verified Buyer
Brian Campbell
I travel frequently and the universal voltage works like a charm. It charges all four cells evenly and quickly. Easily the best multi-slot lithium charger I have owned so far.
Verified Buyer