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White Panasonic charger with retractable plug and four AA batteries beside it

Panasonic

Panasonic K-KJ17KHCA4A Charger Kit with 4 AA 2550mAh Batteries

SKU CH-K3YN-A5G1J MPN K-KJ17KHCA4A

Charges four AA or AAA cells individually with LED indicators and includes four 2550mAh AA batteries that hold 85% charge for a year

  • Battery pack size4-pack
  • Battery typeAA
  • Charging seats4
  • Details4 individual LED charging lights Retractable plug AC100 – 24
  • Product typeRechargeable Batteries & Charger Kit
  • HighlightsAdvanced, individual battery charging, AA and AAA cells 4 in

Battery Pack 4-pack

Battery Type AA

  • Individually charges AA and AAA cells with four LED indicators
  • Retractable AC plug accepts 100 to 240V input worldwide
  • Includes four eneloop pro AA batteries rated 2550mAh typical capacity
  • Low self-discharge cells hold 85% charge after one year storage
  • Each battery rechargeable up to 500 times for long service

Kit contents and target user

The Panasonic K-KJ17KHCA4A kit bundles a compact charger with four AA eneloop pro Ni-MH batteries rated at 2550 mAh typical capacity. It suits photographers, outdoor enthusiasts and anyone who needs reliable high-drain cells for flash units, GPS devices or game controllers.

Charging behaviour and indicators

The charger accepts AC 100–240 V at 50/60 Hz and features a retractable plug for travel. Four independent channels each have an LED indicator and battery-detection technology that stops charging automatically when a cell is full. AA cells take about nine hours to reach full charge while AAA cells need roughly seven hours.

Deciding specification

The included AA batteries deliver a typical capacity of 2550 mAh with a 2450 mAh minimum and retain up to 85 percent of their charge after one year of storage. They are rated for up to 500 recharge cycles and operate down to –4 °F. Buyers who need higher cycle counts or greater capacity should look elsewhere.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 84% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand namePanasonic
Model nameK-KJ17KHCA4A
Product typeRechargeable Batteries & Charger Kit
Power
Battery typeAA
Size & build
Shipping weight0.23 kg
Package size142 × 104 × 48 mm
In the box
Battery pack size4-pack
More details
Charging seats4

Other versions of this model

1 more in the same range

Questions about this item

How do I install the four AA eneloop pro batteries in the charger, and what step do people often miss?

Insert each AA cell into one of the four individual charging slots; the retractable AC plug must be fully extended and connected to a 100–240V outlet before the LED indicators will show charging status.

What maintenance or replacement will the included 2550mAh AA batteries need over time?

Each eneloop pro AA cell can be recharged up to 500 times and retains 85% charge after one year of storage; replace the batteries once they no longer hold sufficient capacity for your devices.

What limit appears first during sustained charging cycles with this kit?

The charger fully recharges AA cells in about 9 hours and AAA cells in about 7 hours; the batteries themselves are rated for 500 recharge cycles before capacity drops below usable levels.

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