Smart Digital Li-Ion Charger 2 x 3.7V with USB
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 42,99 lei | — |
| 3–4 pcs | 40,84 lei | 5% (−2,15 lei/unit) |
| 5–10 pcs | 38,69 lei | 10% (−4,30 lei/unit) |
| 11+ pcs | 36,54 lei | 15% (−6,45 lei/unit) |
Smart charger with digital display for Li-Ion batteries
Dual charger with real-time voltage and current monitoring, compatible with 10440, 14500, 16340, 17335, 17500, 18500, and 18650 models. Simple USB connection, ideal for flashlights, portable devices, and equipment using rechargeable Li-Ion batteries. The digital display shows voltage, amperage, and charging level, giving you complete control over the process.
What you get with this product
- Real-time monitoring on a digital screen — see exact voltage, current, and charge percentage without guesswork
- Compatible with 7 Li-Ion battery formats — one charger for all your portable devices
- Simultaneous charging of 2 batteries — save time and always have spare batteries ready
- Standard USB power supply — connect it to any phone adapter, power bank, or laptop, no special outlets needed
- Overload protection with confirmation LED — charging stops automatically when the battery is full, extending its lifespan
- Compact and portable — take it with you on trips, 38 cm cable included
How it works and how to install
Insert the Li-Ion batteries into the two slots, observing the marked polarity. Connect the included USB cable to a 5V adapter or your laptop's USB port. The digital display will light up and automatically show the charging voltage and current. A green LED indicates complete charging. No configuration is required — automatic detection adjusts parameters for each battery type.
Frequently asked questions
Can I charge two different batteries simultaneously?
Yes, the charger independently manages each slot, allowing you to charge batteries of different sizes or capacities at the same time.
What happens if I leave the batteries connected overnight?
The charger automatically cuts off power when the battery is full, the LED turns green, and there is no risk of overheating or damage.
Does it work with batteries from powerful LED flashlights?
Yes, it is compatible with most flashlights using 18650 Li-Ion batteries and the other listed formats, making it a universal solution.
Technical specifications
| Compatible battery types | Li-Ion 10440, 14500, 16340, 17335, 17500, 18500, 18650 |
| Input voltage | 5V DC (USB) |
| Input current | 1.2A - 5A |
| Output voltage | 4.2V |
| Maximum output current | 1000mA per slot |
| Number of slots | 2 independent |
| Display | Digital LCD with V, A, and charge level display |
| USB cable length | 38 cm |
| Dimensions | 135 x 55 x 35 mm |
| Material | Flame-retardant plastic and metal |
| Certifications | CE, RoHS |
Warranty and support
The product benefits from a 24-month warranty according to Romanian legislation, a 30-day return policy, and fast national courier delivery. The charger comes with a USB cable included, ready for use immediately after unpacking.
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