Universal Smart Charger for 18650 and 26650 Li-ion Batteries

Dependable, Multi-Slot Charging for Li-ion Batteries

The Universal Smart Charger provides safe and efficient power delivery for a broad selection of 3.7V cylindrical Li-ion cells. Equipped with independent bays, it manages charging for individual batteries while actively monitoring safety. It offers a reliable way to keep rechargeable power cells ready for outdoor gear, electronics, and everyday devices.

Features & Benefits

• Independent Charging Bays: Charges multiple cells simultaneously, allocating dedicated power to each slot without cross-interference.
• Multi-Layer Safety Protection: Built-in safeguards defend against overcharging, overcurrent, over-temperature, reverse polarity, and short circuits to protect your cells.
• Automatic Cut-Off: Stops the charging cycle as soon as cells reach full capacity to preserve overall battery life.
• Clear LED Indicators: Displays red while actively charging and turns green once the battery is fully charged.
• Flexible Power Compatibility: Accepts power from standard AC wall outlets, DC inputs, USB adapters, power banks, and solar panels depending on the configuration.

How to use

Connect the charger to a compatible USB or AC/DC power source using the provided cable. Insert your 3.7V Li-ion batteries into the bays matching the polarity markings; the LED will illuminate red during charging and turn green once the process is complete.

Specifications

• Input: AC 100–240V 50/60Hz 15W, DC 12–24V 15W
• Output Voltage: 4.2V ± 1%
• Output Current: 500mA × 4 slots
• Battery Compatibility: 3.7V Li-ion only (18650, 26650, 14500, 16340/RCR123, 10440, 18500, 18350, 17670, 18490, 17500, 17335, 12500, 12650, 13650, 14430, 16500, 16650, 17650, 19670, 22650; not compatible with AA, AAA, or NiMH)
• Dimensions: 3.74 in × 1.38 in × 4.92 in
• Weight: 4.73 oz (approximately 135 g without batteries)
• Available Variants: 1-Bay USB, 2-Bay USB, 4-Bay USB, and 4-Bay DC

What's in the box

• 1 × Universal Smart Charger (Selected Variant)
• 1 × Power Cable / USB Cable (depending on model)
• 1 × User Manual

Choose the bay and power configuration that suits your setup to keep your Li-ion batteries powered and ready.