Delkin Devices DD/AA-4PK-R29 Extended Power Rechargeable AA Batteries

by Delkin

Product Details

• Product Dimensions: 3.1 x 0.6 x 4.8 inches
• Shipping Weight: 1 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000VTT358
• Item model number: DD/AA-4PK-R29
• Average Customer Review: 3.2 out of 5 stars  See all reviews (8 customer reviews)
• Date first available at Amazon.com: November 13, 2007

Product Description

Delkin Devices package of 4 extended power AA rechargeable batteries. These batteries are rated at 2900mAh to supply extended power to all of your power-hungry devices. These are great for high drain devices such as digital cameras and flash units.

Customer Reviews

Most Helpful Customer Reviews

11 of 11 people found the following review helpful:

3.0 out of 5 stars Delkin needs better quality control on their NiMH batteries, March 7, 2009

By 

Timothy B. Dereg (Redmond, WA) - See all my reviews
(REAL NAME)   

This review is from: Delkin Devices DD/AA-4PK-R29 Extended Power Rechargeable AA Batteries (Electronics)

I bought two 4-packs of these Delkin AA NiMH batteries based on their claimed capacity of 2900 mAh. As soon as I received them I charged them up using a pair of LaCrosse BC-900 battery chargers in TEST mode. According to the battery charger LCD screens, none of these Delkin batteries would charge up more than about 2050 mAh. I contacted the company I bought them from about their lack of stated capacity, and they replied that NiMH batteries need to be drained and recharged several times before they develop their full capacity.

I have since drained each set of four AA batteries in my digital camera and recharged them several times. I saw an increased capacity in most of the Delkin AA batteries up to around 2350 mAh. But there's at least one AA in each four-pack that gradually loses its ability to accept a charge. I have now had to return two of the eight Delkins for replacement. Kudoes to the company for promptly replacing the defective ones, but I'm chagrined that defective Delkin NiMH AAs would be so common. With a failure rate of 25%, I won't be buying any more Delkin products.

3 of 3 people found the following review helpful:

2.0 out of 5 stars A conflict of expectations, October 27, 2009

By 

Man o 'tides (Seattle, WA USA) - See all my reviews

This review is from: Delkin Devices DD/AA-4PK-R29 Extended Power Rechargeable AA Batteries (Electronics)

I bought these Delkin 2900mah's last March expecting them to last longer than their Sony 2500 predecessors.

The Sony's were good for 5 weeks between charging in my lcd headlamp I use when cycling the dark morning hours.

When they arrived I charged them up and they conked out after 3 weeks. I know the first couple of charges you have to allow for lack of power. But I find myself still having to charge them every 3 weeks for over 7 months now.

A dissapointing purchase.

2 of 2 people found the following review helpful:

3.0 out of 5 stars not that long lasting, January 22, 2009

By 

LHS "LHS" (Denver, CO, USA) - See all my reviews

This review is from: Delkin Devices DD/AA-4PK-R29 Extended Power Rechargeable AA Batteries (Electronics)

I don't have access to the testing device used by the earlier review, but I'm equally disappointed by these cells. It's my definite impression that the Delkin 2900s do not last nearly as long in my digital cameras as Sanyo 2700s, nor do they have as good a shelf life.