Average Reviews:
(More customer reviews)These are quality batteries w/ 2x's more power and [Longer RUNNING time] than most lower capacity NIMH batteries, including the "ready to use"/ Low self-discharge (LSD) types!
Never thought I would care about writing battery reviews, but the High capacity rechargeables are getting a bad rap from some reviewers b/c they have to be charged (before) use, in order to get back their capacity, after being left (un-used) for more than ~ 3-4wks. Their stored power when [NOT in USE / device turned OFF] is lost faster than batts that keep hold of theirs longer = the LSD types like Imedion 2100 mAh -or- Eneloop 2000 mAh.
-BUT these high capacity batts (2700- 2900 mAh) have an intended purpose, which is a reason the top companies make Both types in the 1st place.
[In Storage]
Yes, the LSDs are useful b/c they have a [Longer STORAGE time] (before needing to be recharged) than the high capacity types. Thus the LSDs are "ready to use" and good for seldom used devices & intermittent usage. However, this doesn't negate the effectiveness of 2700-2900 mAH made by quality brands.
[In Operation]
Not all users (all the time) need a rechargeable for good shelf-life... Some need it for High power & LONG run time for "shorter" segments = 1- 20 days (i.e., photo shoot, day-hike/bike/caving, day at the beach with ur RC (radio-controlled) toys, holiday lighting, etc, etc. And a quality brand (2700-2900 mAh) will do the job.
The decision is [WHEN] do you pick a :(High Capacity/ high self-discharge) -or- (Low Capacity/ Low Self- discharge)...Not picking the universal "better" one. The "best" would be a High capacity & LSD & Rechargeable all in one!- but that's not available yet.
Now, Sanyo's REAL competition is ( Powerex AA 2700mAh NiMH ). They're both good -I would pick 1 over the other, based on sale price or latest technology release.
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Sanyo 2,700 mAh AA NiMH Rechargeable Batteries (4-Pack)Do away with disposable batteries and keep your portable electronicsrunningfor years with this four pack of GE/Sanyo AA rechargeable NiMH batteries. Builtforlong-lasting use, the 2,700 mAh batteries last up to four times longer thanstandardalkaline batteries, making them ideal for digital cameras, audio devices, andother high- drain electronics. More significantly, when they run out of power, you don't havetothrow them away and clutter up the landfill. Simply put them in a charger andrechargethem either fully or partially, depending on your needs. All told, these batteriescan berecharged up to 1,000 times without experiencing a memory effect.
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