Why are some duracell rechargeable batteries black and some green?

I think the black are older. I recently ordered green and got black. They do not hold their charge and I discovered after 30 days. Amazon would not take back. I will not buy rechargeable batteries from them in future.

The ion speed 1000 charger is listed with 4 aa and 2 aaa. the photo and product description seem to suggest it comes with 6 aa and 2 aaa. which is it?

There are 4 shorter slots for the AAA batteries + 4 longer slots for the longer AA batteries. You have to put multiples of 2 of the batteries in to have it charge - so 2 or 4 of the AA - same w/ the AAA (2 or 4).

If I have 1 dead battery (0%) and 1 low battery (25%) and put both in the charger at the same time, will it only make 1 fully charged, or both?

Both will be fully charged you can put one dead and one fully charged on the same circuit and the one that's dead will charge and the other one will stay charged

My wife’s vibrator runs on 16AA cells. Energizers AA’s Peter out after 7-8hrs continuous use. Will these do better?

Yes better batteries different brands

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Duracell Ion Speed 1000 Charger for Rechargeable AA and AAA Batteries, With 6 AA and 2 AAA Pre-Charged for Household & Business

Duracell Ion Speed 1000 Charger for Rechargeable AA and AAA Batteries, With 6 AA and 2 AAA Pre-Charged for Household & Business

Product ID: 325561961

Details

Battery Capacity
1000 Milliamp
Battery Cell Composition
NiMH
Brand
DURACELL
Number of Batteries
8 Product
Recommended Uses For Product
TV Remote

⚡1000 mW fast charge power

🔋Includes 8 pre-charged batteries

⏱️4-8 hours rapid recharge

Description

🔌 Power up your day, the smart and speedy way!

POWER PACKED SPEED - Recharge AA & AAA batteries in just 4-8 hours with 1000 mW charging power—because waiting is so last decade.
SMART AUTO SHUTOFF - Energy-efficient auto shutoff prevents overcharging and saves electricity, perfect for the eco-conscious professional.
READY OUT OF THE BOX - Comes with 6 AA and 2 AAA pre-charged batteries, so you’re always powered up and ready to go.
MULTI BATTERY FLEXIBILITY - Charge 2 or 4 batteries simultaneously—maximize your productivity without the downtime.
TRUSTED DURACELL DURABILITY - Backed by a 10-year battery life guarantee—reliable power for your home, office, or emergency kit.

The Duracell Ion Speed 1000 Charger delivers rapid 4-8 hour recharging for AA and AAA NiMH batteries with 1000 mW power. Featuring an energy-saving auto shutoff and the ability to charge up to 4 batteries at once, it comes bundled with 6 AA and 2 AAA pre-charged batteries guaranteed to last 10 years—ideal for professionals who demand efficiency and reliability.

Specifications

ASIN	B08S79LDB5
Antenna Location	TV Remote
Battery Capacity	1000 Milliamp Hours
Battery Cell Type	NiMH
Brand	DURACELL
Customer Reviews	4.6 4.6 out of 5 stars (2,420)
Global Trade Identification Number	00041333025162
Item Dimensions	11 x 1.12 x 6.5 inches
Manufacturer	Duracell
Model Number	CEF14
Number of Batteries	8 Product Specific batteries required.
Reusability	Rechargeable
UPC	041333025162
Unit Count	8.0 Count
Voltage	3 Volts (DC)

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