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- Review count2
- Helpfulness votes38
- First reviewSeptember 7, 2010
- Last reviewSeptember 15, 2010
- Featured reviews0
- Average rating1
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Mabuhay's Reviews
Energizer Power Plus Rechargeable AA Batteries offer a convenient way to power your gadgets while saving money and reducing waste. Made with 15% recycled materials, these AA rechargeable batteries use innovative, industry-leading technology for reliable use. These chargeable batteries are designed to prevent damaging leaks. Use these Energizer rechargeable batteries as long-lasting batteries for cameras, game systems, toys and other battery-powered items, so you always have a convenient power source available. These Energizer AA batteries come pre-charged and can be recharged in an Energizer battery charger hundreds of times. Each AA rechargeable battery can hold its charge for up to 12 months in storage, and the double A batteries have up to a 5 year battery life with normal use. Energizer is the number 1 recharge brand.
Customer Rating
1
Don't bother - stick to Alkalines
on September 15, 2010
Posted by: Mabuhay
from Boston, MA
I really can't say enough about how bad these batteries are. Please note that I'm a mechanical engineer by schooling and have been somewhat of a "battery aficionado" for 30 years or so with my charging and discharging experience of batteries for my hobbies (radio control, cars, cameras, electronics, etc).
Nimh batteries are inherently only 1.2 volts. When manufacturers make their devices, these devices are "expecting" 1.5 volts such as what is provided by Alkaline batteries. So your "low battery" warning, if your device has one, will trigger much much sooner since your battery is starting "fresh" at 1.2 volts vs. 1.5 volts.
Further, the 15 minute Energizer charger charges at an astronomical 7 Amps! This gets the batteries crazy hot. Heat is not good for batteries and they will die (i.e. - not be able to recharge anymore) much sooner = DEFINITELY NOT the "recharge 100 times" claim. Of course, if you use a "slow" charger, then yes, the batteries should last much longer. Charge over 100 times? I doubt it.
Further, the 15 minute Energizer charger charges at an astronomical 7 Amps! This gets the batteries crazy hot. Heat is not good for batteries and they will die (i.e. - not be able to recharge anymore) much sooner = DEFINITELY NOT the "recharge 100 times" claim. Of course, if you use a "slow" charger, then yes, the batteries should last much longer. Charge over 100 times? I doubt it.
So why shouldn't you buy these batteries?
1) Add the more expensive cost of these batteries
2) The cost to charge them at 7 amps (which I can imagine is a lot since refrigerators draw 15 amps!)
3) The fact that the 15 minute chargers kill them more quickly, it should really push you to go back to Alkalines.
4) They don't work as well as Alkalines in colder weather (i.e. - try using the flash when it's 15 degrees outside and you'll notice that the batteries, although freshly charged, won't work so well. Pop new Alkalines in there and voila! You got flash back).
1) Add the more expensive cost of these batteries
2) The cost to charge them at 7 amps (which I can imagine is a lot since refrigerators draw 15 amps!)
3) The fact that the 15 minute chargers kill them more quickly, it should really push you to go back to Alkalines.
4) They don't work as well as Alkalines in colder weather (i.e. - try using the flash when it's 15 degrees outside and you'll notice that the batteries, although freshly charged, won't work so well. Pop new Alkalines in there and voila! You got flash back).
So in a nutshell, I'm going back to Alkalines. Or even better, go with Lithium Energizers which will last that much longer! Both don't contain any mercury and you can safely throw them in the trash.
What's great about it: Saving you time from running back and forth to the store
What's not so great: Purchase cost, charging cost, doesn't last long, poor cold weather performance.
No, I would not recommend this to a friend.
Performance
1
Battery Life
2
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+14points
26of 38voted this as helpful.
Energizer Power Plus Rechargeable AAA Batteries save money and reduce your impact on the environment. Made with 15% recycled materials, these 800mAh AAA rechargeable batteries support responsible forestry and use innovative technology to provide a lasting charge. These rechargeable AAA cell batteries are designed to prevent leaks that can damage your electronics. Use these Energizer rechargeable batteries as long-lasting digital camera batteries or use a AAA rechargeable battery in your game systems, toys and other battery-powered items. These Energizer AAA batteries can be charged in an Energizer battery charger hundreds of times. The NiMH AAA batteries hold the charge for up to 12 months in storage, and the triple A batteries have up to a 5 year battery life with normal use. Innovation makes Energizer the number 1 rechargeable brand.
Posted by: Mabuhay
from Boston, MA
Nimh batteries are inherently only 1.2 volts. When manufacturers make their devices, these devices are "expecting" 1.5 volts such as what is provided by Alkaline batteries. So your "low battery" warning, if your device has one, will trigger much much sooner since your battery is starting at 1.2 volts vs. 1.5 volts.
Further, the 15 minute Energizer charger charges at an astronomical 7 Amps! This gets the batteries crazy hot. Heat is not good for batteries and they will die (i.e. - not be able to recharge anymore) much sooner = DEFINITELY NOT the "recharge 100 times" claim.
So add the more expensive cost of these batteries, the cost to charge them at 7 amps (which I can imagine is a lot since refrigerators draw 15 amps!), and the fact that the 15 minute chargers kill them more quickly, it should really push you to go back to Alkalines.
So in a nutshell, I'm going back to Alkalines. Or even better, go with Lithium Energizers which will last that much longer!
What's great about it: Nothing at this time
What's not so great: Cost, cost to recharge, 15 charger kills them quickly
No, I would not recommend this to a friend.
Performance
1
Battery Life
1
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-15points
12of 39voted this as helpful.
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