Universal Dual Slot Battery Charger – 18650 18700 110V 220V

Keep your rechargeable batteries topped up and ready to go with the Universal Dual Slot Battery Charger, compatible with 18650, 18700, and a wide range of lithium-ion and nickel-metal hydride (NiMH) battery types. Whether you're powering flashlights, vaporizers, cameras, or other high-drain devices, this compact charger delivers reliable, intelligent charging every time.

Why You'll Love This Battery Charger

• Dual Independent Slots: Charge two batteries simultaneously, with each slot operating independently — so you never have to wait for one battery to finish before the other starts.
• Smart Battery Detection: Automatically identifies lithium-ion and nickel-metal hydride (NiMH) batteries and applies the correct charging method for each — no manual configuration needed.
• Wide Voltage Compatibility: Works on both 110V and 220V power supplies, making it ideal for home use and international travel.
• Multi-Layer Charging Protection: Built-in safeguards guard against overcharge, over-discharge, and short circuits, helping to extend the overall life of your batteries.
• Durable Plastic Construction: Lightweight yet sturdy build designed for everyday convenience and long-lasting use.
• Compact & Convenient: Slim, travel-friendly profile that slips easily into a bag or drawer when not in use.

Compatible Battery Types

This charger is designed to work with a broad range of cylindrical rechargeable batteries, including:

• 18650 lithium-ion batteries
• 18700 lithium-ion batteries
• Other standard cylindrical lithium-ion and NiMH battery formats (verify dimensions before use)

Specifications

• Slots: 2 (independent operation)
• Compatible Battery Types: Li-ion, NiMH
• Input Voltage: AC 110V / 220V (universal)
• Material: Plastic
• Protection: Overcharge, over-discharge, short circuit

For more information on safe battery charging practices and rechargeable battery standards, visit the U.S. Consumer Product Safety Commission – Battery Safety.

Frequently Asked Questions

Q: What battery sizes does this dual slot battery charger support?

A: This universal charger is compatible with 18650 and 18700 lithium-ion batteries, as well as other standard cylindrical lithium-ion and nickel-metal hydride (NiMH) rechargeable batteries. Always check your battery's dimensions to ensure a proper fit before charging.

Q: Can I charge two different batteries at the same time?

A: Yes! Each of the two charging slots operates completely independently. This means you can charge two batteries simultaneously — even if they are different sizes or types — without any interference between slots. It greatly improves convenience and saves time.

Q: Does this charger work in different countries?

A: Absolutely. The charger supports both 110V and 220V AC input, making it compatible with power outlets in most countries around the world. It's a great companion for frequent travelers who rely on rechargeable batteries.

Q: What safety protections are built into this charger?

A: This charger features intelligent multi-layer protection, including safeguards against overcharging, over-discharging, and short circuits. These protections work automatically to keep your batteries in optimal condition and extend their overall lifespan.

Q: Does the charger automatically detect the battery type?

A: Yes. The smart detection system automatically identifies whether a battery is lithium-ion or NiMH and adjusts the charging method accordingly — so you get the right charge every time without any manual settings.