Eneloop Panasonic K-KJ17MC124A Super Power Pack 12AA, 4AAA, 2 C Adapters, 2 D Adapters, Advanced Individual Battery Charger and Plastic Storage
Quick take
This Eneloop Panasonic Super Power Pack is a mixed-size rechargeable bundle, combining pre-charged AA and AAA NiMH batteries with a compact charger that charges batteries individually (up to four at once). It is a strong fit for households, controllers, remotes, and other battery-heavy devices where you want consistent performance and less battery waste, with the main caveat that the included “C” and “D” adapters are spacers that use AA cells inside rather than providing true C/D rechargeable batteries.
Pros and cons
Pros
- Pre-charged AA and AAA eneloop NiMH batteries are ready to use out of the box.
- Long recharging life, up to 2100 times (AA and AAA eneloop claims) and maintains up to 70% charge after 10 years when not in use.
- 4-slot CC17 charger supports individual charging for AA and AAA batteries and can charge one to four cells at a time.
- Includes C and D adapters so you can use AA batteries in C/D-sized devices.
Cons
- The C and D accessories are adapters/spacers that “pretend” your AA into C/D size, so they are not a replacement for actual C/D batteries where AA-in-adapter compatibility may not work.
- Only supports charging AA and AAA cells with the supplied charger (not true C/D cells).
What buyers think
Buyer feedback is strongly centered on reliability and convenience. Many shoppers highlight that the batteries arrive ready to use and that they hold their charge for extended periods, then recharge well when needed. The included charger is repeatedly described as straightforward and effective, especially for users who cycle batteries regularly. Packaging presentation and storage case fit can be a minor annoyance for some, but the recurring themes focus more on performance, longevity expectations, and having the right mix of sizes plus adapters in one kit. Review evidence is limited in the sense that it does not provide detailed measurements across all use cases, but the overall pattern points to a dependable rechargeable system for everyday mixed AA and AAA needs.
What you get in this kit
This bundle is built around a common household reality, devices that use different battery sizes. You receive a total of AA and AAA eneloop NiMH rechargeable batteries, plus an individual-bay charger and storage support.
- Batteries: 12 AA eneloop NiMH rechargeable batteries and 4 AAA eneloop NiMH rechargeable batteries.
- Charger: A Panasonic CC17 advanced individual charger with a four-position charging layout and separate LED indicators.
- Adapters: 2 C adapters and 2 D adapters that allow AA batteries to be used in C- and D-sized compartments.
Battery and charging performance, in plain terms
Pre-charged batteries for immediate use
These eneloop AA and AAA batteries come pre-charged (factory-charged using solar power) and are positioned for long storage, maintaining up to 70% charge after 10 years when not in use. That makes the kit feel “grab-and-go” for emergency supplies, seasonal gear, and devices you do not use every day.
Capacity and consistency
The AA cells are rated with typical and minimum capacities (up to 2000 mAh typical, 1900 mAh minimum). AAA cells are rated with typical and minimum capacities (up to 800 mAh typical, 750 mAh minimum). In practical terms, the selling point is consistent NiMH rechargeable output for common AA and AAA devices, from remotes to controllers and other battery-powered equipment.
Individual charging you can use one cell at a time
The CC17 charger individually charges each AA or AAA battery bay. The kit is designed to let you charge one, two, three, or four cells at once, which matters if you only use a few batteries between recharge cycles. The charger also includes multiple LED indicators so you can see charging status across the bays.
C and D adapters: useful, but know what they are
If you have C or D battery devices, the included adapters expand the kit’s usefulness. However, they are not true C/D rechargeable batteries. Instead, they are spacers that let you insert AA cells into C/D-sized compartments. That can be a great workaround in many cases, but it can also be a mismatch if a device requires specific electrical or physical characteristics that an AA-in-adapter setup cannot satisfy.
Pros and cons breakdown
Best for
- Households that rely on both AA and AAA rechargeable batteries.
- Buyers who want a charger that supports individual, independent charging bays.
- People who like having adapters on hand for C/D devices, especially when you already use AA cells.
- Anyone building a long-term rechargeable setup to reduce repeated disposable battery purchases.
Who should avoid this kit
- Shoppers who need actual C and D rechargeable batteries and do not want to use AA-based adapters.
- Buyers with devices that may not accept AA-in-adapter “emulation” (especially if the battery compartment is tight or expects real C/D cells).
- Anyone who wants to charge non-AA/AAA rechargeable cells with this specific charger.
Verdict: a strong mixed-size rechargeable system
The Eneloop Panasonic K-KJ17MC124A is best viewed as a complete rechargeable starter system for AA and AAA users who also want adapter coverage for C and D compartments. Its value comes from the combination of pre-charged batteries, long-life eneloop design goals, and an individual charging setup that works for partial top-offs as well as full recharges. If your C/D devices truly require real C/D batteries, you may want a different approach, but for many mixed-battery households and hobby setups, this kit is built for convenience and day-to-day practicality.
FAQ
Is the Eneloop Panasonic K-KJ17MC124A kit good for mixed AA and AAA devices?
Yes. It includes both AA and AAA eneloop NiMH rechargeable batteries and a charger designed to charge AA and AAA cells individually, so you can power mixed devices with one system.
What do the C and D adapters do?
The kit includes adapters/spacers that let you insert AA batteries into C- and D-sized battery compartments. They are not true C and D rechargeable cells.
Can you charge C or D batteries with the included charger?
The charger is intended for AA and AAA NiMH rechargeable batteries. The C and D accessories are adapters for using AA cells in C/D devices, not additional C/D cells to be charged directly by the charger.
Do the batteries come pre-charged?
Yes. The AA and AAA eneloop batteries are pre-charged at the factory and are designed to be ready to use right out of the package.
How does “individual charging” help?
Because each bay charges independently, you can recharge one to four cells at a time and top off only the batteries you need, rather than charging a whole set in one batch.
Specifications
| Product Title | Eneloop Panasonic K-KJ17MC124A Super Power Pack 12AA, 4AAA, 2 C Adapters, 2 D Adapters, Advanced Individual Battery Charger and Plastic Storage |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Chargers |
| Brand | Eneloop |
| Manufacturer | Panasonic |
| Model Name | K K K J17MC124A |
| Model Number | K-KJ17MC124A |
| Item Weight | 1.8 Pounds |
| Number of Batteries | 12 AA batteries required. |
| Global Trade Identification Number | 00073096902299 |
| UPC | 073096902299 |
| Built-In Media | 12 AA eneloop batteries, 4 AAA eneloop batteries, 2C and 2D adapters, 1 CC17 advanced individual rechargeable battery charger |
| Warranty Description | This product is guaranteed to be free from defects in materials and workmanship |
| Battery Capacity | 2000 |
| Voltage | 240 Volts |
| Reusability | Rechargeable |
| Amperage | 12 Amps |
| Compatible Phone Models | battery powered toys, gaming consoles, high |
| Unit Count | 1.0 Count |
| Battery Weight | 13 Ounces |
| Item Dimensions | 1.68 x 8.63 x 7.63 inches |
| Antenna Location | All household devices that use AA and AAA batteries |
| Battery Cell Type | NiMH |
| Battery Cell Composition | NiMH |
| Recommended Uses For Product | All household devices that use AA and AAA batteries |
Recommended next
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.
EBL 906 Smart Charger for AA AAA C D 9V Rechargeable Batteries
The EBL 906 is a multi-bay “smart” charger for Ni-MH and Ni-Cd AA, AAA, C, D, plus 9V batteries. It’s designed to show charging status on an LCD, support independent charging bays, and use cutoff and safety controls to help prevent overcharging.
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.
POWEROWL Rechargeable AAA Batteries with Charger (8-Pack)
POWEROWL’s rechargeable AAA kit pairs 8 Ni-MH batteries (rated 1000mAh) with an 8-bay smart charger that charges individual cells. It’s a solid fit for households that use lots of AAA devices, like remotes, clocks, flashlights, and small toys, with a tradeoff around standby performance and the included documentation quality.