XTAR L4 PRO Universal Smart Battery Charger for Li-ion and Ni-MH/Ni-CD with USB-C and LCD Display

For hobbyists, technicians, and everyday users who rely on rechargeable batteries, the XTAR L4 PRO offers a dependable four-bay charging solution. Whether you need to power up 18650 cells for flashlights or AA Ni-MH batteries for wireless mics, this charger handles both chemistries with ease. Its USB-C input adds modern convenience, letting you charge from a wall adapter, power bank, or laptop.

Key specifications

• Universal smart charger with 4 independent charging bays
• Compatible with Li-ion (IMR, INR, ICR) and Ni-MH/Ni-CD rechargeable batteries
• Supports Li-ion sizes: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650
• Supports Ni-MH/Ni-CD sizes: AAAA, AAA, AA, A, SC, C, D
• Input: AC 100-240V 50/60Hz (via included adapter) or DC 12V 3A
• Charging current options: Li-ion up to 2A×2 (slots 1&4), 1A×4, 0.5A×4; Ni-MH/Ni-CD up to 1A×4, 0.5A×4
• Precision cut-off: Li-ion 4.2V±0.05V, Ni-MH/Ni-CD 1.45V±0.1V
• Backlit LCD display shows charging status, voltage, current, and capacity
• Additional functions: capacity test, internal resistance test, 0V activation
• Protection: over-charge, over-discharge, short-circuit, reverse polarity, overheat
• Charging algorithms: TC-CC-CV for Li-ion, pulse charging for Ni-MH/Ni-CD
• Operating temperature: 0-40°C
• Housing: durable ABS/PC
• Includes AC power adapter
• Certifications: CE, FCC, RoHS

Why choose it

The L4 PRO stands out with its dual-chemistry support, so you can consolidate chargers for both Li-ion and Ni-MH/Ni-CD batteries. Its independent bays let you mix different battery types and sizes simultaneously, and the informative LCD display keeps you updated on voltage, current, and capacity. The USB-C input offers flexibility in power sources, and the advanced safety features ensure reliable operation.

Ideal use cases

• Charging 18650 or 21700 Li-ion batteries for flashlights, vapes, or power tools
• Recharging AA or AAA Ni-MH batteries for remote controls, wireless keyboards, or toys
• Testing battery capacity and internal resistance for battery maintenance and diagnostics
• Reviving over-discharged Li-ion batteries with 0V activation

Good to know

The charger includes an AC power adapter for direct wall use, but you can also power it via a USB-C cable (not included) from a power bank or laptop. It automatically detects battery chemistry and selects the appropriate charging algorithm. The backlit LCD display is easy to read in low light, and the durable ABS/PC housing withstands daily use.