Generic 18650 Battery Charger 4‑Bay with LCD — Smart Multi‑Chemistry Charger, Selectable Currents

This compact 4-slot charger accepts a wide range of rechargeable chemistries — including Li-ion, Ni-MH and Ni-Cd — and displays voltage, current and elapsed charging time for each bay. With selectable charge currents (500mA, 1000mA and a 2000mA option for the fourth slot), visible readouts and several built-in protections, it’s designed for hobbyists, everyday device users and anyone who keeps multiple batteries on hand.

How does the LCD make charging simpler?

The clear LCD lets you check individual cell voltage, charge current and runtime at a glance without guessing. Buttons let you toggle information so you always know which batteries are nearly full and which need more time.

• Separate readouts for each of the four bays
• Displays voltage, current and charging time
• Button controls to switch views quickly

What battery types and sizes will it charge?

This charger accepts many common rechargeable formats: 18650, RCR123A and other popular Li-ion sizes plus Ni-MH and Ni-Cd cells. Slots measure up to 72mm long, so most standard cylindrical cells fit comfortably; note it doesn’t charge 1.5V lithium AA/AAA cells.

• Compatible with Li-ion, Ni-MH and Ni-Cd chemistries
• Maximum battery length: 72mm per slot
• Supports 18650 and many RCR/IMR variants

How fast and adjustable is the charging?

Charge-rate options let you favor speed or cell longevity: 500mA and 1000mA are available for most slots, while a 2000mA mode is provided for the fourth bay for faster replenishment when needed. Intelligent current selection helps reduce stress on cells and gives flexible charging workflows.

• Selectable currents: 500mA and 1000mA for most bays
• 2000mA high-rate option fixed to bay four only
• Auto-adjusts current to match cell condition

What safety features protect my batteries?

Multiple protections guard against common charging risks so you can leave batteries to top up with confidence. Built-in safeguards monitor for overcharge, short circuits and improper cell insertion, stopping or limiting charge when anomalies appear.

• Overcharge detection and cutoff
• Short-circuit protection to prevent faults
• Slot-by-slot monitoring to isolate problem cells

Who is this for? The XKXKTkol 4-bay charger suits power-tool and flashlight owners, photographers, electronics hobbyists, and anyone who rotates through multiple rechargeable cells. It’s a good fit if you need clear per-cell feedback, flexible charge speeds, and a compact unit for home, car or workshop use. The package includes the 4-slot charger, a car power cord, a charging cable and a manual so you can start charging right away.