Battery & Charger Comparisons · Reviewed October 22, 2026
Panasonic BQ-CC17 vs BQ-CC55: Which eneloop Charger?
Both accept one to four AA or AAA eneloop cells independently. BQ-CC17 favors slower, simple one-color feedback; BQ-CC55 charges faster and adds three-color progress and battery-status indications.
Best for
Households and photographers choosing an official plug-in charger for AA and AAA Panasonic eneloop or eneloop pro nickel-metal-hydride batteries.
Probably not for
Disposable alkaline or lithium primary cells, lithium-ion rechargeables, damaged or leaking batteries, unattended unsafe locations, or cell brands and chemistries not approved by the charger instructions.
Specifications at a glance
| Detail | Panasonic BQ-CC17 | Panasonic BQ-CC55 |
|---|---|---|
| Charger class | Advanced charger | Smart and quick charger |
| Compatible cells | 1 to 4 AA/AAA eneloop or eneloop pro in any mix | 1 to 4 AA/AAA eneloop or eneloop pro in any mix |
| AA eneloop charge time | Approx. 7 h for 1 to 4 | Approx. 1.5 h for 1 to 2; 3 h for 3 to 4 |
| AA eneloop pro charge time | Approx. 9 h for 1 to 4 | Approx. 2 h for 1 to 2; 4 h for 3 to 4 |
| Indicators | Four individual green LEDs | Four individual three-color LEDs |
| Charge termination | Minus Delta V individual control | Smart Charge individual voltage control |
| Input | AC 100 to 240 V auto voltage | AC 100 to 240 V auto voltage |
| Dimensions and weight | 65 x 105 x 27 mm; 91 g | 68 x 120 x 28 mm; 120 g |
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Panasonic eneloop BQ-CC17 Advanced Charger
A four-slot individual-control charger for one to four AA or AAA eneloop and eneloop pro cells, with one green LED per slot, Minus Delta V termination and AC 100-to-240-volt input.
Pros
- Smaller and 29 grams lighter by published specifications
- Approximate time is the same for one through four AA cells
- One-color slot lights keep status simple
Cons
- Much longer published AA charge times than BQ-CC55
- LEDs show charging or completion rather than detailed progress bands
- No quick two-cell charge mode
Who it’s for: Choose BQ-CC17 when overnight charging, lower weight and simple independent indicators fit the routine. Skip it when batteries frequently need to be turned around within a few hours.
Check Panasonic eneloop BQ-CC17 Advanced Charger on Amazon Paid linkPanasonic eneloop BQ-CC55 Smart and Quick Charger
A four-slot Smart Charge model for one to four AA or AAA eneloop cells, with separate red, yellow and green progress indication, battery checking and substantially shorter published charging times.
Pros
- Approximate 1.5-hour charge for one or two standard AA eneloop cells
- Three-color LEDs communicate a range of progress and error states
- Smart Charge monitors and stops each slot individually
Cons
- Larger and 29 grams heavier by published specifications
- Fastest time applies to one or two standard AA cells, not every load
- More indicator states require reading the instructions
Who it’s for: Choose BQ-CC55 when faster turnaround and more detailed slot status justify the larger body. Skip it when charging happens overnight and the added speed and feedback would go unused.
Check Panasonic eneloop BQ-CC55 Smart and Quick Charger on Amazon Paid linkThe published time difference is substantial but conditional
Panasonic lists about seven hours for one to four standard AA eneloop cells in BQ-CC17. BQ-CC55 lists about 1.5 hours for one or two, and three hours for three or four. With eneloop pro AA cells, the estimates are about nine hours for BQ-CC17, versus two hours for one or two and four hours for three or four in BQ-CC55. All are approximate and vary with temperature and battery condition.
That makes BQ-CC55 useful for same-day reuse, but only if the actual load matches the faster condition. A headline such as 90 minutes does not describe four high-capacity cells. BQ-CC17 can be perfectly adequate when batteries charge overnight and a spare set is available. Choose from the workflow rather than assuming the quicker specification automatically creates more value.
Both models control every slot independently
Either charger accepts one, two, three or four AA and AAA eneloop or eneloop pro batteries in mixed sizes and capacities. Individual charge control is the important shared feature: an odd number of cells does not require a paired slot, and each position stops according to its own control system. This is useful for devices that use three cells or for topping separate sets without waiting to form pairs.
Individual control does not make every cylindrical battery compatible. The cited specifications name eneloop and eneloop pro nickel-metal-hydride cells. Never insert disposable alkaline cells, lithium primary batteries or lithium-ion rechargeables. Check polarity and cell condition before plugging in the charger. A damaged wrapper, leakage, deformation or corrosion is a reason to stop and follow the battery makers disposal guidance.
The LEDs answer different questions
BQ-CC17 has one green light per slot. It shines during charging and turns off when the cell is full; a flashing green signal can identify an installation or invalid-cell problem. BQ-CC55 uses separate three-color indicators. Red, yellow and green correspond to approximate charge ranges, the light turns off at completion, flashing yellow can flag a cell nearing end of life, and flashing red identifies an installation or battery problem.
Those colors are estimates and diagnostic prompts, not precision capacity measurements. A green progress light does not certify that a cell will deliver a particular runtime in a camera, flash or toy. If a warning persists after correct insertion and compatibility checks, follow the manual rather than repeatedly removing and reinserting the cell. Do not bypass a safety shutdown or attempt to repair a plug-in charger.
Size favors CC17; travel speed may favor CC55
Panasonic lists BQ-CC17 at 65 by 105 by 27 millimeters and 91 grams with the A-plug. BQ-CC55 is 68 by 120 by 28 millimeters and 120 grams. The 29-gram difference is modest, while the extra length may matter in a tightly packed accessory pouch. Neither needs a separate cord in its A-plug form, but the protruding plug still needs protection from bending or pressing into other gear.
Both support automatic AC 100-to-240-volt input, but plug shape varies by sales region. Auto voltage does not physically adapt the blades, guarantee outlet compatibility or replace local travel guidance. Use an appropriate, compliant plug adapter when required, never a voltage converter unless the instructions call for one, and keep enough clearance around the charger for the ventilation and temperature conditions in the manual.
Safe charging still depends on location and inspection
Both list multiple protection systems, including controls for incorrect polarity, dry batteries, overload and short circuit. BQ-CC55 also documents temperature and overheat protections. These are backup systems, not permission to charge on bedding, in direct sun, near water or in a damaged outlet. Use a stable, dry, ventilated location and keep the charger visible while it is operating.
Insert the negative end first as Panasonic directs and remove the positive end first. Disconnect the charger and remove cells after completion according to the instructions. Some warmth can occur during charging, but unusual heat, odor, discoloration or noise requires immediate attention and safe disconnection if possible. Keep cells organized by age and application rather than mixing weak and strong batteries in a device.
Choose around turnaround time and feedback
Choose BQ-CC17 for slower overnight charging, the smaller lighter body and simple per-slot lights. Choose BQ-CC55 when the shorter documented times and three-color battery feedback solve a real scheduling problem. Both provide independent slots and wide-range input, so paying for CC55 is primarily about speed and information rather than supporting an additional battery size.
The exact Amazon identifiers are B00JHKSLM8 for BQ-CC17 and B01G4T230U for BQ-CC55. Confirm the charger model, plug and included battery bundle because kit contents can vary under separate listings. No battery-life improvement, lab performance ranking, current price, stock or coupon is claimed. Specifications come from Panasonics current global eneloop product pages for the exact charger models.
Official sources and further reading
Sources reviewed on October 22, 2026. Prices, availability and terms can change; recheck before buying.
- Panasonic: current BQ-CC17 compatibility, time, indicators, controls, input, dimensions and weight
- Panasonic: current BQ-CC55 compatibility, time, Smart Charge, indicators, input, dimensions and weight
- Amazon: exact Panasonic BQ-CC17 listing and ASIN identity
- Amazon: exact Panasonic BQ-CC55 listing and ASIN identity
Commission disclaimer
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