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Eneloop

Panasonic Eneloop Pro K-KJ55KHC4BA Quick Charger with 4 AA

  • 4-position charger, up to 4 AA or AAA cells
  • 4 hours for four cells, 2 hours for one or two
  • 4 AA eneloop pro batteries included
  • Individual charging with 4 LED indicators
  • 1.2 volts output
  • Up to 500 recharges, 85% charge kept for up to 1 year
  • Down to -4 deg F cold performance

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A four-slot quick charger bundled with four high-capacity AA rechargeables. It charges AA and AAA nickel metal hydride cells and shows each cell's status separately.

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ASIN: B07K6X8MR5Model: K-KJ55KHC4BACategory: Battery Chargers

Overview

Four independent charging slots, each with its own LED indicator, let this Panasonic charger handle any mix of AA or AAA eneloop pro cells with different remaining charge. The bundle includes four AA cells so charging can start right away.

The reason to buy is the charger and a set of cells in one purchase, with individual slot control that saves time. The limit is chemistry: it is meant for nickel metal hydride cells, and the listing mixes some odd fields.

Who it's for

People who use rechargeable AA and AAA cells in controllers, cameras and remotes will use the individual charging and quick cycle. Owners of other battery types should look elsewhere, since the charger is made for eneloop style cells.

Pros and cons

Pros
  • Individual slot charging
  • LED indicator for each cell
  • Four AA cells included
  • Charges AA and AAA
Cons
  • Nickel metal hydride cells only
  • Voltage and amperage fields unclear
  • Compatible device field says solar
  • Color entry lists three colors

Performance notes

The charger measures each cell on its own and sets the charge level for it, so a half-full cell and an empty cell finish properly. LED lights show the state of each slot. Charging time depends on how many cells are inserted.

Specifications

BrandEneloop
ModelK-KJ55KHC4BA
Dimensions & fit
Item Dimensions D X W X H1.25 x 4.75 x 8 inches
Item weight8.16 ounces
Capacity & performance
Output Voltage1.2 volts
Recharge cycles (batteries)Up to 500
Cold performanceDown to -4 deg F
Power & efficiency
Battery Charge Time4 hours (four cells); up to 2 hours (one or two cells)
Compatibility & installation
Compatible DevicesAA or AAA eneloop pro NiMH
Included components
Included ComponentsBattery charger, 4 AA eneloop pro batteries
Warranty & support
Warranty DescriptionFree from defects in materials and workmanship
Other details
Number Of Ports4-position (listing says 1 port)
Charge retention (batteries)85% for up to 1 year

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Frequently asked questions

How big is the Panasonic K-KJ55KHC4BA charger?

The listing gives 1.25 inches deep, 4.75 inches wide and 8 inches high, with a weight of 8.16 ounces.

How long does the Panasonic eneloop pro charger take?

The description says 4 hours for up to four AA or AAA cells, and up to 2 hours for one or two.

What comes with the Panasonic K-KJ55KHC4BA?

The battery charger and 4 AA eneloop pro batteries.