Energizer Rechargeable AA NiMH Batteries, 8-Count
by Energizer Batteries
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Category: CE
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Digital Photo Product Details
Manufacturer: Energizer BatteriesFormat: CD-ROM
Model: NH15BP-8
Product features:
- Best for high drain devices like digital cameras, CD players and handheld games
- Charges up to thousand times
- ICP Solar 22001 BattPak Battery Charger
- Energizer Compact Charger With 4 AA NiMH Rechargeable Batteries
Digital Cameras Photo Reviews of Energizer Rechargeable AA NiMH Batteries, 8-Count
Customer Review: Not so good for digital cameras
Summary: 1 Stars
I gave these cells lowest possible rating because sharp decline in performance after only a few months of usage in a digital camera is not acceptable (especially considering claims on the package that these cells are GREAT for... digital cameras!). But also because much better alternatives have come on the market (e.g. Sanyo's Eneloop cells) and there simply is no reason any more to buy the Energizer 2500mAh as they have become obsolete.
I have experience using these cells for the past 2 years in 3 distinct and very different usage patterns:
1. My sister used 2 pairs in a digital camera
2. My mother used 3 pairs in a wireless mouse and keyboard
3. I used 6 pairs in various baby toys (non-motorized baby toys that play sounds and flash lights) as well as in Bluetooth keyboard/mouse and back-light IR remote control.
Because each set was never mixed with other batteries (they 'lived' in different households) - I can draw some conclusions on how these batteries hold up under varied usage conditions (by which I mean - various discharge profiles from the most intense - in digital camera - to the least intense - in IR remote controls and baby toys). Also - it's worth noting that all 3 sets of batteries were charged with identical chargers - the Maha MH-C401FS and they were ALWAYS charged on 'slow' or 'gentle' setting (around 5 hours per charge; I made sure my sister and mother understood very well to never EVER use the 'fast' 100 minute setting as it's detrimental to battery life). By the way: none of the sets got anywhere near the 1000 re-charge cycle touted on the packaging.
So what are the results of the 3 tests?
My sister, who put the most strain on her batteries in a high-drain digital camera, essentially killed her 2 sets. She still uses them - but they hardly hold charge any more.
My mother's cells still work - but they only hold sufficient charge to power her keyboard/mouse combo for about a week before they have to be recharged. Wireless keyboard / mouse is a rather low drain device though they do not have a 'sleep' function (pls see below for how this compares to a Bluetooth version).
My batteries - under the least strenuous usage of all 3 sets - held up the best. They still hold charge long enough to power any of my devices for 30 days or better. IR remote only actually drains batteries when you push buttons. Baby toys I use these cells in don't have any motors - and just like the remote control - only drain the cells when the kid presses buttons. Drain is fairly low (most of the toys simply play sounds; some also flash LED lights; none have moving parts). The Bluetooh keyboard and mouse are also low drain and unlike their 'standard' cordless brethren - they go into 'power save' or 'sleep' mode when not used for a number of minutes. This saves tremendously on power usage.
Given my experiences - the bottom line seems to be that these are OK as long as you don't plan on using them in a... digital camera. Just like other reviewers have noted - these cells are excellent in any kind of device when brand new. But after a few months of running them through their paces - they seem to kick the self discharge rate into overdrive. I hardly experienced this self discharge acceleration (though all of my cells did lose about 300mAh of capacity under my usage over the past 2 years; as tested by my newly acquired LaCrosse BC-900 charger). But both my sister and my mother definitely noticed a sharp deterioration.
However, all of this discussion is of little more than historical value at this point. 2 years ago - there were not that many other options for high capacity Ni-MH cells and these Energizer 2500mAh batteries seemed like a good idea. These days - Eneloop cells are available from Sanyo and other 'low self discharge' Ni-MH batteries are also available (often advertised as 'pre-charged' batteries; Wal Mart sells a product called Rayovac Hybrid for less than these Energizer cells; even RadioShack has a house brand; though at ridiculously high price and made in China). So I no longer see a reason to buy the Energizer 2500mAh cells - especially given that Japan-made Eneloop cells from Sanyo are only slightly more expensive. I'm in the process of replacing all of our batteries with Eneloops. Stay tuned for Eneloop review in... 2 years ;-)
Description of Energizer Rechargeable AA NiMH Batteries, 8-Count
Energizer AA Nickel Metal Hydride Battery NH15BP-8 BatteriesDigital Cameras & Photo Categories
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