Eneloop Panasonic K-KJ55M3A4BA Advanced Individual Battery 3 Hour Quick Charger with 4 AAA Rechargeable Batteries
Quick take
This kit bundles four pre-charged eneloop AAA NiMH batteries with the Panasonic CC55 4-position quick charger. The CC55’s main advantage is individual cell charging, so each battery charges based on its own starting level, with separate LED indicators for progress. The main caveat is that this is an AAA-focused starter kit, so you will still need a different battery format if your devices use AA only.
Pros and cons
Pros
- Pre-charged AAA eneloop batteries, ready to use out of the package.
- Individual battery charging with four separate LED status lights (green, orange, red ranges).
- Quick turnaround, about 3 hours to charge four AAA batteries from fully discharged (up to 1.5 hours for smaller loads).
- Long reusability rating of up to 2,100 recharge cycles, plus long shelf/storage charge retention.
Cons
- Starter kit is four AAA batteries, not AA, so it may not cover mixed-device households.
- “Up to” charging times depend on how empty your batteries are when you plug them in.
- Designed for NiMH eneloop-type rechargeable cells, so it is not a fit for other battery chemistries.
What buyers think
Buyer-review evidence is limited to a small set of short snippets, but the recurring themes are consistent: the batteries are perceived to hold up well across many recharges, and people like having a charger that is straightforward to use. Several snippets specifically mention fast charging and the charger’s visible charging indicators, plus convenience for regular everyday battery needs (remote controls, small electronics, and similar devices). Overall, the feedback points more toward practical ownership value, battery longevity, and ease of monitoring charging progress than toward any recurring technical problem.
A closer look at the battery and charger kit
Pre-charged eneloop AAA batteries you can use right away
The included batteries are eneloop AAA NiMH rechargeable cells that come pre-charged at the factory (using solar power). They are intended for long-term readiness, with a claim of maintaining up to 70% of their charge after 10 years when not in use. That makes the kit especially appealing for devices that sit unused for stretches, such as remotes, flashlights, and other low-drain electronics.
Individual charging with CC55 LED status lights
The Panasonic CC55 charger uses four separate charging stations and charges cells individually. Each slot has its own LED indicator, reflecting the estimated charge band for that specific battery: green for 80% to 100%, orange for 20% to 80%, and red for 20% or less. This is useful if you do not always recharge a full matching set, since batteries often start at different levels.
Quick charge targets for common batch sizes
The charger is rated to take about 3 hours to charge fully discharged four AAA batteries. For smaller numbers, it is listed as up to 1.5 hours for two AA or two AAA batteries. Real-world time can vary with how discharged the cells are when you begin, but the overall expectation is that you can top up a household batch in an evening rather than waiting days.
How this kit performs for different battery users
Best for
- Households that run multiple AAA devices and want a consistent rechargeable replacement.
- People who prefer a “see the status” charger, where each battery has its own LED progress indicator.
- Users who recharge mixed levels of batteries (for example, one device drains faster than the others).
- Anyone who values long reusability (up to 2,100 recharge cycles) and long-term charge retention for storage.
Who should avoid it
- People whose devices mainly require AA, unless you plan to add an AA kit or choose a charger/bundle that includes AA cells.
- Anyone needing compatibility with non-NiMH rechargeable chemistries, since this is aimed at NiMH eneloop-type batteries.
- Shoppers expecting the fastest possible cycle regardless of battery condition, because charging time depends on starting charge and load.
Pros and cons recap
Pros: pre-charged eneloop AAA cells, individual charging, clear LED status per battery, and a quick-charge target suitable for everyday top-ups. Cons: it is an AAA starter kit, so it may not fully cover mixed AA and AAA households, and charge time is not the same for every situation because it starts with how empty the batteries are.
Verdict: is it worth it?
The Eneloop Panasonic K-KJ55M3A4BA kit makes the most sense for AAA-heavy households that want an easy, visible way to recharge batteries individually. If you already rely on eneloop rechargeable batteries or you want to switch away from disposables with long-cycle cells, this charger’s per-slot LED indicators and individual-cell approach are the standout value points. If your primary need is AA, you may want to compare options that match your device mix so you do not end up buying separate formats right away.
Price and availability
Check current pricing and stock status before buying, since these can change frequently. Use the button below to view the latest information.
FAQ
How long does it take to charge four AAA batteries?
Charging four fully discharged eneloop AAA batteries is listed at approximately 3 hours. Charging time can be shorter for smaller batches (up to about 1.5 hours for two AA or two AAA cells).
Does the charger charge batteries individually?
Yes. The CC55 charges each battery in its own slot, and each slot has its own LED indicator to show the charge range for that specific cell.
What do the charger LED colors mean?
Green indicates 80% to 100% charged, orange indicates 20% to 80%, and red indicates 20% or less for each individual battery slot.
Are the batteries pre-charged or do I need to charge them first?
They are pre-charged at the factory and are intended to be ready to use out of the package.
How many times can these eneloop AAA batteries be recharged?
The kit’s battery claim is up to 2,100 recharge cycles under the manufacturer’s stated reusability rating.
Will this charger work with AA batteries?
The CC55 is designed for up to four eneloop AA or AAA NiMH rechargeable batteries. This particular bundle includes four AAA batteries, but the charger itself supports both sizes.
Specifications
| Product Title | Eneloop Panasonic K-KJ55M3A4BA Advanced Individual Battery 3 Hour Quick Charger with 4 AAA Rechargeable Batteries, White |
|---|---|
| Category | Health & Household > Household Supplies > Household Batteries > AA |
| Brand | Eneloop |
| Manufacturer | Panasonic |
| Model Name | Rechargeable batteries |
| Model Number | K-KJ55M3A4BA |
| Item Weight | 181 Grams |
| Number of Batteries | 4 AAA batteries required. |
| Global Trade Identification Number | 00073096902688 |
| UPC | 073096902688 |
| Built-In Media | Panasonic CC55 Quick Battery Charger eneloop Ready to Use Rechargeable Batteries (4 AAA) |
| Warranty Description | This product is guaranteed to be free from defects in materials and workmanship |
| Item Type Name | Panasonic K-KJ55M3A4BA "Advanced" Individual Battery 3 Hour Quick Charger with 4 AAA eneloop Rechargeable Batteries, White |
| Battery Capacity | 800 |
| Voltage | 1.5 Volts |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Battery Weight | 52 Grams |
| Item Dimensions | 2.75 x 1.13 x 4.75 inches |
| Antenna Location | remote controls, flashlights, toys, wireless computer devices, rc cars, digital camera flash units, game controllers and more |
| Battery Cell Type | NiMH |
| Battery Cell Composition | NiMH |
| Recommended Uses For Product | remote controls, flashlights, toys, wireless computer devices, rc cars, digital camera flash units, game controllers and more remote controls, flashlights, toys, wireless computer devices, rc cars, digital camera flash units, game controllers and more See more |
Available variants
Style
- AAA
- AA
- AAA + AAA Batteries (4-Pack)
Size
- 4 Count (Pack of 1)
- 8 Count (Pack of 1)
- 24 Count (Pack of 1)
- 12 Count (Pack of 1)
- 16 Count (Pack of 1)
Set
- Batteries only
- Single
- w/ Quick Charger
- w/ Standard Charger
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