XTAR L4 Pro Battery Charger for AA AAA, LCD Display, 4-Slot Independent Charging
Quick take
The XTAR L4 Pro is a compact AA/AAA rechargeable battery charger with USB-C power, a visible LCD status display, and 4-slot independent charging. It is designed for both 1.2V Ni-MH and 1.5V Li-ion (lithium) AA/AAA batteries, including a recovery/repair-style mode for over-discharged cells. The biggest buying caveat is that it does not include a wall plug, and recovery cycles can take hours.
Pros and cons
Pros
- Supports both 1.2V Ni-MH and 1.5V Li-ion rechargeable AA/AAA batteries.
- LCD display shows charging progress and battery status.
- 4-slot, independent charging lets you charge one to four cells at a time.
- Includes refresh/recovery mode for reviving over-discharged rechargeable batteries.
Cons
- Uses USB power only, so you will need your own USB charger or adapter.
- Refresh/recovery can be slow, with cycles taking multiple hours per batch.
What buyers think
Buyer review evidence is limited to a small set of short user snippets, but the themes that do appear are consistent. Several buyers highlight the charger’s LCD status indicators (easy to see which cells are charging and when they are full), and they describe the device as straightforward to use. Multiple comments also focus on functionality for older or mixed rechargeable cells, including refresh/recovery behavior. A couple of reviewers specifically call out USB-only power (no wall plug included) as something worth planning for.
What this charger is for
The XTAR L4 Pro is aimed at people who want one charger for rechargeable AA and AAA batteries, especially when they have a mix of battery types. It is designed to charge 1.5V Li-ion rechargeable AA/AAA batteries and 1.2V Ni-MH rechargeable AA/AAA batteries, while also managing cell health by blocking alkaline or defective cells.
Charging design and controls
This model uses a 4-slot layout with independent charging per slot, so you can charge a single battery or a full set. An LCD display provides live feedback, including voltage monitoring and notifications for full or not-full status. For buyers who care about tracking what is happening (instead of a simple “one light means done” approach), that screen is a key feature.
Refresh and recovery modes
One standout reason people consider the L4 Pro is the included repair-style function intended to help revive over-discharged 1.2V rechargeable AA/AAA batteries. Review snippets mention that running refresh cycles over older batteries can take a while, and that it may be convenient to let the process run longer (for example, overnight) depending on what you are trying to recover.
Performance and power details
According to the listed specifications, the charger runs from 5V input and uses a USB-C cable. The charge time for lithium is listed at about 1.5 hours, and the charger is rated for a 2 amp current with a 1.5V DC output. In practical terms, this means it can work quickly for standard charging, but if you choose the refresh/recovery path, expect longer runtimes.
Pros and cons (real-world buyer fit)
Good fit if you want one charger for mixed AA/AAA rechargeables
If you use rechargeable AA and AAA batteries in everyday devices (remotes, controllers, cameras, sensors) and you have both Ni-MH and 1.5V lithium rechargeables in your drawer, the “one device” approach can reduce hassle.
Not the best choice if you need wall-plug convenience
If you prefer chargers that include everything you need to plug in immediately, you may find the USB-C-only setup slightly less convenient. You will want to pair it with a suitable USB power adapter.
Good fit if you care about keeping older cells usable
Recovery-focused buyers usually want more than a basic charge cycle. This model’s refresh/recovery mode is built for that exact scenario, though the tradeoff is time.
Price and availability
Pricing and stock can change quickly. You can check the latest availability and cost here: Buy on Amazon.
Verdict
The XTAR L4 Pro is a solid choice for shoppers who want a compact, 4-slot USB-C charger with an LCD display and support for both 1.2V Ni-MH and 1.5V Li-ion rechargeable AA/AAA batteries. It also adds practical recovery capability for over-discharged Ni-MH rechargeables. Choose it if you are comfortable providing your own USB adapter and you are okay with refresh cycles taking several hours.
FAQ
Does the XTAR L4 Pro charge both Ni-MH and 1.5V lithium AA/AAA batteries?
Yes. It is designed to charge 1.2V Ni-MH rechargeable AA/AAA batteries and 1.5V Li-ion rechargeable AA/AAA batteries.
How many batteries can it charge at once?
It has four slots and supports charging one to four AA/AAA rechargeable cells at a time, with independent charging per slot.
Does it include a wall plug?
The charger is USB-C powered and includes a USB cable, but buyers mention it does not include a wall adapter, so you will need to supply your own USB power source.
What does the refresh or recovery mode do?
It is meant to help revive over-discharged 1.2V rechargeable AA/AAA batteries, potentially reducing the need to replace batteries that have dropped too low.
How long does charging take?
The listed charge time for lithium AA/AAA rechargeables is about 1.5 hours. Refresh/recovery cycles can take longer (review snippets describe multi-hour runtimes), so plan time if you are reviving older batteries.
Specifications
| Product Title | XTAR L4 Pro Battery Charger for AA AAA, LCD Display, 4-Slot Independent Charging, Compatible with 1.2V Ni-MH & 1.5V Li-ion Rechargeable Batteries, Fast USB Charger with Refresh Recovery Modes |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Chargers |
| Brand | XTAR |
| Manufacturer | ShenZhen XTAR Electronics Co., Ltd |
| Model Number | L4 Pro |
| Color | Black |
| Item Weight | 3 Ounces |
| Product Dimensions | 4.01"D x 3.15"W x 1.08"H |
| Output Voltage | 1.5 Volts (DC) |
| Input Voltage | 5 Volts |
| Battery Charge Time | 1.5 Hours |
| Current Rating | 2 Amps |
| Connector Type Used on Cable | USB-C |
| Number of Ports | 4 |
| Item Dimensions D x W x H | 4.01"D x 3.15"W x 1.08"H |
| Specification Met | CE, FCC, RoHS |
| Mfr Part Number | L4 Pro |
| Warranty Description | 1 |
| Unit Count | 1.0 Count |
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