Tenergy TN480U 8-Bay LCD Display Fast Charger with 8 Pack AA and 8 Pack AAA Premium Pro Rechargeable Batteries
Quick take
The Tenergy TN480U bundle pairs an 8-bay, LCD-status fast charger with 8 AA and 8 AAA Premium Pro NiMH rechargeable batteries. It is a convenient choice if you mix AA and AAA devices and want each battery charged independently with clear progress indicators. The main catch is power-adapter dependency: it uses USB input, and you will need a suitable USB power source to get the expected charging performance.
Pros and cons
Pros
- 8 independent charging slots with a detailed LCD display for per-battery status.
- Designed to handle AA and AAA rechargeables, including mixed charging needs.
- NiMH Premium Pro AA (2,800mAh) and AAA (1,100mAh) batteries offer reusable cycle life up to 1,200 times.
- Safety features include short-circuit, reverse polarity, bad cell detection, and auto shut-off with Negative Delta V cutoff.
Cons
- USB charger requires an appropriate 5V power supply, and charging speed can vary with the adapter quality.
- Capacity is limited to 8 total slots, so people who need 9 or more batteries at once may still wait for a second batch.
- Not an “all-purpose” charger for every brand or chemistry, it is intended for NiMH (and NiCD compatibility is noted for the charger) AA/AAA types.
What buyers think
Buyer-review evidence is strongly focused on convenience, charging behavior, and visibility. Many shoppers say the charger is easy to use, the bays are straightforward to load, and the LCD display helps them confirm progress at a glance. A recurring theme is that charging is handled per battery rather than forcing matched pairs, which matters for households that run odd counts of AA or AAA in devices. Another theme is that performance depends on using a solid USB power source; reviews mention that weaker wall adapters can hold charging back. Overall, buyers describe the bundle as a reliable fit for frequent AA and AAA users, particularly for devices like remotes, controllers, small electronics, and household lighting.
What you get in this bundle
This kit includes the TN480U 8-bay LCD fast charger plus 16 rechargeable batteries total, split as 8 AA and 8 AAA Premium Pro NiMH cells. The charger is built specifically for AA and AAA rechargeable formats, and it supports USB power input with both USB-C and Micro-USB connectors.
Charging design: why the 8-bay LCD matters
The biggest functional advantage is the 8 independent bays paired with an LCD that shows charging status for each battery. That eliminates guesswork when you are not charging an even set of pairs. It also helps with mixed routines, since AA and AAA batteries can be handled within the same charger system.
Power and charge behavior
The charger takes DC 5V input rated at 2A and provides different output current profiles depending on the battery type. For AA charging it uses 500mA per 8 AA batteries, and for AAA it uses 250mA per 8 AAA batteries. Charging time will vary by battery capacity, and the charger’s built-in cutoff logic is designed to stop charging safely rather than running indefinitely.
Safety and cutoff features
To reduce risk and improve reliability, the TN480U includes protections such as short-circuit detection, reverse polarity protection, bad cell detection, and a shut-off timer. It also uses a Negative Delta V cutoff method, which is a common approach for NiMH charging.
Battery performance and long-term value
The Premium Pro NiMH batteries in this set are specified at 2,800mAh for AA and 1,100mAh for AAA. The manufacturer also lists low self-discharge behavior, with a stated retention of about 85% capacity after 1 year in storage. Battery cycle life is rated up to 1,200 recharges, which is the primary reason rechargeable bundles tend to make sense if you burn through disposables.
Pros and cons for different buyer types
Best for
- Households with lots of AA and AAA devices (remotes, controllers, LED lighting, small electronics) that need frequent recharging.
- People who often have an uneven number of batteries, where pair-only chargers are inconvenient.
- Shoppers who want clearer charging feedback than basic “one light per session” chargers.
Who should avoid it
- Buyers who do not want to supply a good USB power adapter, because the charger’s performance can be affected by the quality of the USB supply.
- People who regularly need to charge more than 8 batteries at once and cannot wait for a second batch.
- Anyone expecting a universal charger for every chemistry and brand, since the design is centered on NiMH/NiCD-compatible AA and AAA types.
Price and availability
This is positioned as a battery-plus-charger bundle, meaning the value comes from having a ready-to-use set rather than buying batteries separately. Check the latest price and bundle details using the link below, especially if you already own a compatible charger or if your priority is only one battery size (AA or AAA).
Verdict
The Tenergy TN480U bundle is a solid choice for frequent AA and AAA users who want individual-bay charging with an LCD and the flexibility to handle odd counts. It looks especially practical for mixed-device households where you do not always have batteries charged in matching pairs. The biggest thing to get right is power supply quality, since USB adapter strength can influence charging performance.
FAQ
Will this charge any AA or AAA batteries?
The charger is designed for AA and AAA rechargeable chemistries, specifically NiMH (and it is listed as compatible with NiCD as well). It is not meant for all battery types, so match your cells to the charger’s chemistry and size requirements.
How long does it take to charge a battery?
Charge time depends on the battery’s capacity. The charging-time estimate provided is based on capacity divided by the charger’s current limits: AA charge time uses 500mA, and AAA charge time uses 250mA. Real-world time can vary with the USB power supply you use.
Does USB-C charge faster than Micro-USB?
USB-C and Micro-USB use the same power output (same charging rate). If both are connected at the same time, the charger will take power via the USB-C cable.
Do I need to buy an AC adapter?
The charger uses USB input, and a Micro-USB to AC adapter is not included. You will need a suitable USB power supply (for example, a 5V USB source) to run the charger.
Can it charge single or mixed batteries?
Yes, the charger supports charging batteries individually in its independent bays, which makes it practical when you need to top up odd counts or mix AA and AAA needs.
Specifications
| Product Title | Tenergy TN480U 8-Bay LCD Display Fast Charger with 8 Pack AA and 8 Pack AAA Premium Pro Rechargeable Batteries |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery & Charger Sets |
| Brand | Tenergy |
| Manufacturer | Tenergy |
| Model Number | TN480U Charger |
| Color | black |
| Product Dimensions | 7"D x 4"W x 2.5"H |
| Output Voltage | 1.5 Volts (DC) |
| Input Voltage | 240 Volts |
| Amperage | 2.8 Amps |
| Compatible Devices | Tenergy Premium Pro AA and AAA rechargeable batteries, TN480U charger |
| Connector Type Used on Cable | USB |
| Number of Ports | 8 |
| Item Dimensions D x W x H | 7"D x 4"W x 2.5"H |
| Specification Met | RoHS, CE |
| Mfr Part Number | 2b507cf0-83bb-44d4-bbef-c73a6af28d65 |
| UPC | 844949035767 |
| Warranty Description | Tenergy 1 Year |
| Unit Count | 17.0 Count |
Available variants
Size
- Charger + 4xAA & 4xAAA
- Charger Only
- Charger + 8xAA
- Charger + 8xAAA
- PRO 8xAA + Charger
- PRO 8xAA & 8xAAA + Charger
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