18650 Battery Charger,LCD Display Charger for 3.7V Li-ion Battery 18650,26650,21700,18500,18350,16650
Quick take
This 2-slot LCD battery charger supports a wide mix of popular cylindrical cells, including 3.6/3.7V lithium options (like 18650 and 21700) and select 1.2V Ni-MH/Ni-Cd batteries. Independent charging per slot and a screen that shows charge voltage, current, time, battery type, and percentage make it easy to monitor progress. The main buying caveat is power, you may need a suitable wall adapter to use the included charging cable.
Pros and cons
Pros
- 2 independent bays, so you can charge two batteries at once without slot interference.
- LCD display tracks useful charging details like voltage, current, time, battery type, and percentage.
- Adjustable lithium charging current (0.5A, 1A, 2A) for different charging needs.
- Automatic stop behavior for full charge, plus built-in protections (short circuit, over voltage).
Cons
- Battery not included, you will need to supply compatible cells and ensure they match the charger’s supported chemistries.
- Some buyers report needing their own wall adapter to pair with the included charging cable.
- Not every battery size is supported for every chemistry, double-check that your cells fall under the lithium or 1.2V battery list.
What buyers think
Buyer-review evidence is generally positive around usability and monitoring. Multiple reviews describe the charger as easy to use, compact for travel, and capable of charging two batteries at the same time, including mixing different sizes in separate bays. Reviewers also highlight the LCD readouts as helpful for tracking progress, including percentage and charging time. Charging speed is commonly described as quick for the intended use cases, especially when recharging common flashlight or vape-style lithium cells.
Who this charger is best for
- People with multiple lithium cylinder sizes (for example 18650 and 21700), who want one charger that can handle more than a single format.
- Anyone who prefers transparency during charging, especially the on-screen voltage, current, time, and battery percentage.
- Light-duty home and travel use, since the unit is described as compact and straightforward for frequent top-ups.
- Buyers who want slot independence, so charging doesn’t rely on one battery to “share” the same charging cycle.
Compatibility and charging modes
This is a multi-chemistry 2-bay charger built for common cylindrical cell types. It supports:
- 3.6/3.7V lithium batteries for sizes including 18650, 21700, 20700, 18350, 18500, 26650, and others listed in the product compatibility lineup.
- 1.2V nickel-metal hydride (Ni-MH) and Ni-Cd batteries for common AA, AAA, and certain other 1.2V formats (as supported by the manufacturer’s compatibility list).
For lithium cells, it also includes adjustable charging current at 0.5A, 1A, or 2A (the adjustable lithium speeds are part of the intended lithium charging function, while nickel-metal hydride charging is limited to 0.5A per the published note). The charger is designed to judge battery type automatically, then apply the appropriate charging behavior.
LCD display, monitoring, and charging behavior
The LCD display is one of the biggest practical differentiators. It shows multiple values during charging, including charging voltage, charging current, charging time, battery type, and a battery power percentage. Independent charging per bay helps keep the experience predictable when you charge two batteries at once, even if they are different sizes.
For safety and convenience, the charger includes automatic full-charge stopping and protections such as short-circuit and over-voltage prevention.
Pros and cons compared to simpler chargers
If you are shopping against basic single-rate chargers, the trade is usually visibility and control versus simplicity. This model leans toward control by offering adjustable lithium current and a multi-metric display. If you only ever charge one battery size and never need monitoring, you may find cheaper options. But if you want a single charger to cover several common cylindrical formats and you value an easy-to-read status screen, this design is built for that.
Price and availability
Pricing and stock can change, so check the current listing for the most up-to-date cost and delivery timeframe.
FAQ
Does this charger work with 18650 batteries?
Yes. It is designed to charge 3.6/3.7V lithium cylindrical cells including 18650, along with other common sizes like 21700 and 20700.
Can it charge two batteries at the same time?
Yes. It has two independent bays, so you can charge two batteries simultaneously.
What does the LCD display show?
The LCD display is intended to show charging voltage, charging current, charging time, battery type, and a battery power percentage.
Does it support lithium and Ni-MH batteries?
Yes. It can handle both lithium (3.6/3.7V) cylindrical batteries and 1.2V nickel-metal hydride and nickel-cadmium batteries in formats listed for compatibility. The charging current behavior differs by chemistry.
What charging currents are available for lithium batteries?
For lithium batteries, the charger offers adjustable settings of 0.5A, 1A, and 2A.
What power adapter does it use?
It comes with a charging cable. The connector type is designed to work with a US power adapter format, and some buyers may need to supply a compatible wall adapter for their setup.
Verdict
The 2-bay LCD charger is a solid pick if you want one device for multiple common cylindrical battery sizes, appreciate real-time charging information, and like the convenience of independent charging per slot. Just be sure your batteries match the supported chemistries and sizes, and plan for the possibility that you will need your own compatible wall adapter to power the included cable.
Specifications
| Product Title | 18650 Battery Charger,LCD Display Charger for 3.7V Li-ion Battery 18650,26650,21700,18500,18350,16650 1.2V LiFePO4 Ni-MH Ni-Cd A AA AAA Rechargeable Batteries(Battery not Included) |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Chargers |
| Brand | Swanlake |
| Manufacturer | alinalove |
| Color | 2-slot |
| Product Dimensions | 4.82"D x 2.34"W x 1.1"H |
| Output Voltage | 3.7 Volts (DC) |
| Input Voltage | 4.2 Volts (DC) |
| Current Rating | 2 Amps |
| Amperage | 2 Amps |
| Compatible Devices | 18650, 21700, 20700, 10440, 14500, 16340, 16650, 14650, 18350, 18500, AA, AAA, AAAA, SC, C, F6, 1.2V batteries |
| Connector Type Used on Cable | NEMA 1-15P (US power adapter) |
| Number of Ports | 2 |
| Item Dimensions D x W x H | 4.82"D x 2.34"W x 1.1"H |
| Mfr Part Number | char41-01 |
| Warranty Description | 2 year |
| Specification Met | UL |
Recommended next
Hoover ONEPWR Lithium-Ion Battery Charger (Dual Bay, Temperature Control, Rapid Charge)
The Hoover ONEPWR Lithium-Ion Battery Charger is a dual-bay charger built for Hoover ONEPWR lithium-ion batteries. It includes temperature regulation and rapid charging, with batteries reaching full charge in about 3.5 hours, plus flashing indicator lights so you can track status at a glance.
Duracell Rechargeable AA Batteries 4 Count, Long-lasting Power, All-Purpose Pre-Charged NiMH AA
Duracell’s pre-charged NiMH AA rechargeable batteries are designed for heavy-use devices like game controllers, wireless electronics, baby monitors, and remotes. They’re ready to use out of the pack, meant to hold a charge for up to a year when not in use, and built for long-term storage. The main catch: they’re NiMH, so performance depends on your device and how your charger handles rechargeable cells.
Energizer Recharge Value Charger for NiMH Rechargeable AA and AAA Batteries
This simple wall-plug NiMH AA/AAA charger is designed to charge batteries in 2 or 4 at a time, with clear LED status (red for charging, green for ready) and built-in battery protection features. It’s a solid fit for remotes, controllers, and other high-rotation household devices, with the main tradeoff being you cannot charge a single battery by itself.
Energizer Recharge Pro Rechargeable AAA and AA Battery Charger With 4 NiMh Rechargeable AA Batteries
This Energizer Recharge Pro charger is a simple stand-alone unit for AA and AAA NiMH batteries, with fast charging (up to a full charge in about 3 hours) and LED indicators plus beeps to show when charging starts and finishes. It also includes a bad-battery detector and overcharge protection with auto shutoff, making it a solid choice for everyday battery users who want fewer replacements.