From the Manufacturer The new SEC-HR3U20SPN 20-AA eneloop battery pack utilizes SANYO뭩 advanced rechargeable battery technology allowing them to be recharged up to 1500 times, 33% more than any eneloop battery! They deliver excellent power performance. They come pre-charged and can be used immediately out of the package. These eneloop cells also have increased storage life and better extreme temperature performance than the original eneloop batteries.SANYO eneloop 2,000 mAh, improved low self discharge rechargeable AA batteriesMaintain 75 percent of their charge after 3 years of storageCan be recharged up to 1,500 timesPre-charged and ready to use right out of the packageWork in extreme temperatures down to ?캟Provide long lasting power at a cost of only 4¢ per rechargePre-Charged using power generated from solar energyNo memory effect – batteries can be recharged when fully, or partially drained INCREDIBLY LONG STORAGE LIFESANYO 1500 cycle rechargeable eneloop Ni-MH batteries maintain up to 75% of their charge after three years of storage compared to conventional rechargeable batteries which often have 0% charge after only 2 years of non-use.KEEPS YOUR DEVICES POWERED IN 밇XTREME?COLD WEATHERKeep your portable players, cameras, flashlights and other devices powered in th e winter. eneloop 1500 cycle and XX batteries deliver exceptional performance at extreme low temperatures, down to ?캟.ENELOOP...CLEAN ENERGY FROM THE FACTORY TO YOUR DEVICESANYO’s "Clean Energy Loop" initiative has become a reality. All eneloop 1500 cycle and XX batteries are charged at the factory in Japan using power generated from solar energy.PURCHASE GENUINE SANYO eneloop BATTERIES For more details click hereWHEN IS 1.2V BETTER THAN 1.5?eneloop꿂onsistently High Voltage LevelThe initial voltage level of a battery provides no indication of how long the battery will last or how much power it can deliver. Alkaline battery cells rapidly drop below 1.5V soon after they are put into use and the voltage continues to steadily decline over time.Since alkaline cells are non-rechargeable, they must be discarded and then replaced. SANYO’s eneloop batteries deliver best-in-class Ni-MH high capacity power and are rechargeable up to 1500 times. Devices like cameras flash units and wireless game controllers can easily draw more than 1000mA of current; rapidly depleting alkaline batteries.eneloop batteries maintain a consistently high voltage level keeping your devices operating for a longer period of time. When you use eneloop Ni-MH rechargeable batteries, you will realize that “1.2V” can indeed be better than “1.5V”.WHY ARE ALKALINE BATTERIES 1.5V?Regular disposable AA and AAA batteries are considered Primary Cells, and are most widely recognized as conventional “alkaline” batteries. There are two electrodes inside each cell; one is made of Zinc, known as the anode (the negative terminal) and the other is made of Manganese Dioxide, known as the cathode (the positive terminal). The electrodes are surrounded by an alkaline electrolyte, the chemical from which alkaline batteries get their name.Battery chemistry of an alkaline battery generates 1.5V. As the chemical reaction fades, so does the power of the alkaline battery cell. This is why the voltage from alkaline batteries drops off shortly after the battery is put into use and the power continues to fade over time.WHY ARE NI-MH RECHARGEABLE BATTERIES 1.2V?Ni-MH rechargeable batteries have two electrodes inside the cell: Nickel and Mercury Hydride. Battery chemistry of an Ni-MH rechargeable battery generates 1.2V. While alkaline batteries experience rapid drops in voltage Ni-MH rechargeable batteries maintain the same voltage throughout most of the entire charge.The chemical makeup of Ni-MH batteries eliminates the “memory effect”, which means the cells can be recharged at any time without having to be fully discharged. eneloop batteries have continued to raise the performance bar in Ni-MH rechargeable technology. eneloop has increased “low self discharge” performance on Ni- MH rechargeable batteries which allows eneloop cells to store power for longer periods of time.WHAT MAKES ENELOOP THE BEST RECHARGEABLE BATTERYThe new SANYO eneloop battery incorporates a highly-durable super-lattice alloy which lessens the deterioration of this important alloy material. This super-lattice alloy increases the electrical capacity of the battery chemistry through lower internal resistance and delivers a long lasting, stable voltage output.A new strong, thin outer case has also been added to the eneloop battery design in order to improve the internal cell space efficiency. The new case optimizes the balance of the components and when combined with other improvements have led to an increase in the number of times that eneloop batteries can be recharged.eneloop = LOWER COST OF OWNERSHIPWireless game controllers incorporate power-hungry features such as built-in speakers, gyroscopes and motion sensors. Consider the hidden cost of ownership in operating two wireless game controllers.Let뭩 make the following assumptions:You play video games one hour per day or 365 hours per year, using two remote/wireless controllers.A pair of batteries (either alkaline or eneloop) will provide you with roughly 20 hours of game-play usage time.In the first year, you will need 18.25 pairs of batteries per controller (either new alkaline or recharged eneloops).You will consume 73 alkaline battery cells in one year (for two controllers) compared to only 4 eneloop cells which can be recharged 1500 times ($0.04 per cell).Four AA Alkaline batteries will cost roughly $5.49 MSRP.Four AA eneloop batteries with an AC charger will cost $21.99 MSRP.Now let’s look at the annual cost of ownership in only the first few years and then extend it out to ten years (at that point, you probably won’t be playing on the same game system). It is quite obvious that eneloop more than pays for itself in just the first year of ownership!TOTAL ANNUAL COST PER YEAR Year 1 Year 2 Year 3 Year 4 Year 5 Year 10 10 Year Total $24.75 Includes Charger $2.92 $2.92 $2.92 $2.92 $2.92 $51.03 $100.19 $100.19 $100.19 $100.19 $100.19 $100.19 $1,001.93 *Usage assumptions & cost calculations listed below. RECHARGEABLE BATTERY POWER YOU CAN RELY ON WHEN YOU NEED IT MOST! eneloop batteries deliver dependable power allowing you to maximize your music, gaming, computer, photography and other experiences. eneloop batteries can be used to power these and many more devices. NEW 1500 CYCLE VS. ORIGINAL 1000 CYCLE ENELOOPThe new 1500 cycle eneloop delivers four important new features500 extra charging cycles - The new eneloop is rechargeable up to 1500 times33% improved low self-discharge - The new 1500 cycle battery maintains 75% of its charge for up to 3 years when not in use. The original version maintained 75% of its charge for up to 2 years when not in use.Improved low temperature performance - The new 1500 cycle battery can be used in environments down to -4 degrees F. The original eneloop can be used in temperatures as low as 14 degrees F.The new eneloop 1500 cycle battery is even more environment-friendly – each battery cell is pre-charged using solar energy when it leaves the factory in Japan. Genuine SANYO eneloop BatteriesSANYO has three authentic 뱒tyles?of packaging: 1. The 1500 cycle batteries which are in a blue/green cardboard blister design with a earth image screened on the package. 2. The 1000 cycle batteries are in a blue and orange cardboard blister pack. 3. The eneloop XX batteries are in a black cardboard blister package. Products sold in plastic bags or flexible foil style packages are not authorized for sale by SANYO in the U.S. and may not contain authentic SANYO batteries.How to tell the difference between the 뱊ew 1500" and the 뱋riginal 1000?eneloop batteriesIt is easy to distinguish between the 1500 and 1000 cycle eneloop batteries. The 1500 battery has a gray top (in the Green/Blue package pictured) and the 1000 (in the Blue/Orange package pictured) has a white top. eneloop Battery Specifications Product Name "1500 Cycle" "1000 Cycle" eneloop XX Technology Ni-MH rechargeable battery Ni-MH rechargeable battery Ni-MH rechargeable battery Applications all-purpose all-purpose high power consumption devices Recharges / Discharging Cycles up to 1500 up to 1000 up to 500 Low self-discharge / Storage Capacity Maintains 75% of its charge after 3 years of non-use Maintains 75% of its charge after 2 years of non-use Maintains 75% of its charge after 1 year of non-use Low Temperature Capacity -4 degrees F +14 degrees F -4 degrees F Size AA AAA AA AAA AA Model number SEC-HR3U4BPN(4 Pack) SEC-HR4U4BPN (4 Pack) SEC-HR3UTG-4BP (4 Pack) SEC-HR4UTG-4BP (4 Pack) 4HR-3UWX SEC-HR3U8BPN (8 Pack) -- SEC-HR3UTG-8BP (8 Pack) -- -- SEC-HR3U20SPN (20 Pack) -- -- -- -- Voltage 1.2 V 1.2 V 1.2 V 1.2 V 1.2 V Typ. Capacity 2000 mAh 800 mAh 2000 mAh 800 mAh 2500 mAh Min. Capacity 1900 mAh 750 mAh 1900 mAh 750 mAh 2400 mAh eneloop꿚HE BIRTH OF A NEW TECHNOLOGYFor more than 35 years, SANYO has been a leading manufacturer of battery technology. In 2005 SANYO set out to develop a new type of rechargeable battery that would literally change the way people live, work and play. The result was eneloop, a rechargeable battery created with a very simple idea in mind: provide a common energy source that can be reused over and over again. This 뱇ooping energy?became eneloop. Today, eneloop battery cells are recognized by millions of consumers worldwide as the industry뭩 premier rechargeable battery.eneloop’s “signature features” include ready to use rechargeable power with the ability to maintain 75% of their charge for up to 3 years (when not in use), can be recharged up to 1500 times, they have no “memory effect” and outstanding performance even in extremely low temperatures (down to -4 degrees F).Americans deposit 8 billion disposable batteries into landfills each year! eneloop batteries can be recharged up to 1,500 times, which means that the purchase and use of a single eneloop cell can keep many hundreds of batteries from entering landfills! They can also be recycled free of charge at any of the 50,000+ Rechargeable Battery Recycling Corporation (RBRC) recycling centers near you.*Usage Assumptions Two Wii® remote controls 1 hour usage per remote, per day, per year *20 hour avg. battery life per remote $5.49 MSRP - 4 pack AA akaline $21.99 MSRP - eneloop 4 pack AA + charger ©Wii® is a registered trademark of Nintendo eneloop Recharge Cost Assumptions and Calculations 0.144 Kilowatts @ 8 hours per 4 batteries 4 AA --- 1,500 recharges each 1,500 cycles x 8 hours each = 12,000 hours of AC power 0.144 KW x 12,000 hours = 1,728 KWH 1,728 KWH x $0.12 = $207.36 Initial product cost = $21.99 (4AA eneloop + 4 position charger) Total cost of product and recharging = ($207.36 + $21.99) = $229.35 Total number of recharge cycles = (4 batteries x 1,500 each) = 6,000 recharges Cost of recharge = ($229.35/6,000) = $0.038 (3.8?PER RECHARGE) NOTE: Cost of electricity is based on 2010 national US average energy costs @ $0.12 per KWH
B**O
Excellent and affordable way to become green-energy wise
Rechargeable batteries are the way to go if you want to have an economical way powering your flashlights, toys, etc. However, the older technology rechargeable batteries, such as the NCds, NiMH are a pain to use. After you recharge your batteries, they will, in storage, lose their charge so if you wish to get maximum power from them, you should use them immediately. This is often not possible, so a rechargeable battery that holds it charge has an enormous advantage. The Sanyo Eneloop batteries fit this bill. I charge them up and use them when needed. If the have one disadvantage it is that their capacity is about 3/4s that of the highest capacity NiCd or alkaline battery. But since they can be recharged that is of no consequence. These are the perfect batteries for powering my electronic flash, my wireless keyboard, and my wireless mouse.
C**E
Very Hot
These batteries get very hot make sure and get a Sanyo charger for them. I tried using an American charger and they were extremely hot it may have something to do with the way American Electricity is given out in different frequency/hertz. Just be careful and don't leave them unattended until you know how hot they get.
D**D
Not happy with order
I ordered a 20 pack of rechargeable batteries , what I received was one battery in an open pack and 19 batteries scattered in a padded envelope I took four of 19 loose ones and checked the "PRE-CHARGED" batteries the first four needed charging. I assume the rest will also need charging also. I will probably go to a local store from this point when purchasing rechargeable batteries
E**N
Bad Batch?
Don't get me wrong, I love eneloops, and have 50 of em all over, but these just weren't holding their charge like they should have. Maybe it was a bad batch, but whatever it was... I returned it. Amazon was great, as they always are, and I got my money back pronto.
J**O
first time with rechargables
like not having to keep buying AA when shooting all day jobs. but they don't last as long as i expected, not even as long as my normal run-of-the-mill Energizers. a little disappointed.
M**S
Great Long term investment
Expect product to work as stated after a renewing. NOTE these are not the NEWEST as the suffix B version -HR-3UTGB- was out in November 2011which is why these were on sale Nov 2012.[check Wikipedia for eneloop]. I have not found a way to discern from the multipack part number which version. Not much problem probably long term as the improvements are less significant than from first gen [no suffix] to second gen [ A suffix and Crown] like from 85%-90% first year, 75% to 80% after third year and added 75% at five years. Though shelf life initially could be a bit of a problem. Suggest logging in to [candlepowerforums] for extensive info on batteries. Nonetheless these are a great investment along with a Lacrosse or PowerEX charger [recommended at candlepower] and maybe a solar source to keep sets charged with no future cost.
C**3
Sold on the 1,500 charges
Having seen these recommended w a very high rating many times as an excellent choice for flash units and those were the 1,000 charge cycle batteries these batteries sweeten the deal by being rated for 1,500. It is too early on to leave a realistic review as I have only done several charge cycles. That said I know how many racks of conventional batteries I'd gone through I had bought these to stop using conventional batteries and reduce my waste stream contribution of those conventional batteries, & of course to save money in the long run. They work as described.
H**N
Good for about a year
Batteries worked great for about a year. After that they wouldn't hold a charge very long.
Trustpilot
4 days ago
2 weeks ago