Customer Rating: 
Summary: Very Touchy Operation
Comment: This charger can be very good, then again it can be horrible.
When it works, it charges batteries in 15 minutes as advertised. Though the instructions say that to fully charge batteries they should be kept in the charger for at least 10 minutes after the green light comes on indicating the batteries are charged, this can be shortcutted by removing the batteries and re-inserting them or else disconnecting and reconnecting the charger via the plug on the side of the unit. It will then add further current to the batteries for a minute or two. Do this a couple of times and it should fully charge the batteries.
The bad parts of this charger are, as others have pointed out, rejecting perfectly good batteries as being unchargeable.
I have learned to "nurse" it into accepting these types of batteries by warming them up by sitting them atop charging batteries so the warmth generated by the charging batteries will heat up the offending ones but this is a real pain to keep track of. If this doesn't work you are out of luck for those that fail.
Another pain is the fan. It doesn't always work smoothly and when it doesn't the vibrations the fan causes will make the red light blink just like it does when unchargeable batteries are detected. So you have to rap the unit on a table top until the fan runs smoothly before you can really determine if it is a battery problem or unit problem.
So though this unit has potential, it is more for quickie charges. If you have the time, a slower charger is better for battery life and will cause less battery rejection.
Customer Rating:
Summary: Hey, It Works!
Comment: I really like it. Although I have a few reservations, I do recommend it 100%. It really does charge the batteries in 15 minutes; this is a miracle to me, since I have always used those overnight chargers (you know, once your batteries are empty, you can't use them again until tomorrow).
The heat issue is what concerns me. It has a built in fan, which is a good thing since the batteries get pretty warm. I make sure that I stand it on end, so the fan is aimed at the air and not the table. I suspect that charging the batteries so fast and making them so warm shortens the lifespan and capacity somewhat.
There are many good things. You can do 1, 2, 3, or 4 batteries (hooray-I have several things that use 1 or 3 batteries, and my other chargers will only do 2 or 4). It is a smart charger, so if a battery is no good, it won't charge. When the batteries are done, the red light turns green. It comes with 4 AA NiMH's that are 2200 mAh and made in Japan.
Some things I did not like:
* it is really 25 minutes, since you are suppose to leave it in 10 minutes after the light turns green.
* there is only one light for all 4 slots; if you get a blinking red light, you have to take batteries in and out to find the bad one
* the + side of the slot is a moveable, black button
The wall plug is your basic block adapter. The input to the charger (from the plug) lists 11-16volts and 5amps. Output (to the batteries) is 5.6volts, 7.5amps (for AA) and 3amps (for AAA).
Customer Rating:
Summary: Great Product
Comment: The charger does fully charge batteries in around 15 minutes! And the 2200mAh rechargeable batteris that comes along with it lasts really long too. Fully recommended!
Customer Rating:
Summary: It killed my batteries
Comment: This item charges your batteries fast but they're never the same again. My batteries that have put in this charger now last 1/4 of the time they used to, and lose power very quickly even when not being used.
Save yourself the expense of buying new batteries and use the slow charger, the fast charger is not worth it.
Customer Rating:
Summary: OK for infrequent use, can kill batteries
Comment: Bought this as an upgrade to the standard energizer slow charger. Initially it was great, but over time found similiar issues that other people have had. It's very picky, it will reject batteries that the old charger would not. Plus I've found that repeated use of this charger will cause the batteries to take less and less of a charge until they're only lasting a couple of hours after charging.
Overall, it's good when you have to quickly charge up 4 batteries for your camera before you leave for a party. But other than that, stay away.
Summary: Very Touchy Operation
Comment: This charger can be very good, then again it can be horrible.
When it works, it charges batteries in 15 minutes as advertised. Though the instructions say that to fully charge batteries they should be kept in the charger for at least 10 minutes after the green light comes on indicating the batteries are charged, this can be shortcutted by removing the batteries and re-inserting them or else disconnecting and reconnecting the charger via the plug on the side of the unit. It will then add further current to the batteries for a minute or two. Do this a couple of times and it should fully charge the batteries.
The bad parts of this charger are, as others have pointed out, rejecting perfectly good batteries as being unchargeable.
I have learned to "nurse" it into accepting these types of batteries by warming them up by sitting them atop charging batteries so the warmth generated by the charging batteries will heat up the offending ones but this is a real pain to keep track of. If this doesn't work you are out of luck for those that fail.
Another pain is the fan. It doesn't always work smoothly and when it doesn't the vibrations the fan causes will make the red light blink just like it does when unchargeable batteries are detected. So you have to rap the unit on a table top until the fan runs smoothly before you can really determine if it is a battery problem or unit problem.
So though this unit has potential, it is more for quickie charges. If you have the time, a slower charger is better for battery life and will cause less battery rejection.
Customer Rating:
Summary: Hey, It Works!
Comment: I really like it. Although I have a few reservations, I do recommend it 100%. It really does charge the batteries in 15 minutes; this is a miracle to me, since I have always used those overnight chargers (you know, once your batteries are empty, you can't use them again until tomorrow).
The heat issue is what concerns me. It has a built in fan, which is a good thing since the batteries get pretty warm. I make sure that I stand it on end, so the fan is aimed at the air and not the table. I suspect that charging the batteries so fast and making them so warm shortens the lifespan and capacity somewhat.
There are many good things. You can do 1, 2, 3, or 4 batteries (hooray-I have several things that use 1 or 3 batteries, and my other chargers will only do 2 or 4). It is a smart charger, so if a battery is no good, it won't charge. When the batteries are done, the red light turns green. It comes with 4 AA NiMH's that are 2200 mAh and made in Japan.
Some things I did not like:
* it is really 25 minutes, since you are suppose to leave it in 10 minutes after the light turns green.
* there is only one light for all 4 slots; if you get a blinking red light, you have to take batteries in and out to find the bad one
* the + side of the slot is a moveable, black button
The wall plug is your basic block adapter. The input to the charger (from the plug) lists 11-16volts and 5amps. Output (to the batteries) is 5.6volts, 7.5amps (for AA) and 3amps (for AAA).
Customer Rating:
Summary: Great Product
Comment: The charger does fully charge batteries in around 15 minutes! And the 2200mAh rechargeable batteris that comes along with it lasts really long too. Fully recommended!
Customer Rating:
Summary: It killed my batteries
Comment: This item charges your batteries fast but they're never the same again. My batteries that have put in this charger now last 1/4 of the time they used to, and lose power very quickly even when not being used.
Save yourself the expense of buying new batteries and use the slow charger, the fast charger is not worth it.
Customer Rating:
Summary: OK for infrequent use, can kill batteries
Comment: Bought this as an upgrade to the standard energizer slow charger. Initially it was great, but over time found similiar issues that other people have had. It's very picky, it will reject batteries that the old charger would not. Plus I've found that repeated use of this charger will cause the batteries to take less and less of a charge until they're only lasting a couple of hours after charging.
Overall, it's good when you have to quickly charge up 4 batteries for your camera before you leave for a party. But other than that, stay away.
Energizer Rechargeable 15 Minute Charger , 1 charger, includes 2 AA and 2 AAA along with a car adapter Reviews: Page 2 of 6
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