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No noise, normal heat expected. Bats charge as long as needed, depends on the bat rating as well as how discharged it is. Overall its the fastest reliable charger that I have.
By John K. on December 7, 2014
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Smart chargers need to sense voltage to start charging. Get a battery that is fully charged and hold a small wire to each end of it with your fingers. Now put the "dead" battery in the charger and touch the ends of the wire to it from the good battery. The unit will sense power and start charging the battery you though… see more Smart chargers need to sense voltage to start charging. Get a battery that is fully charged and hold a small wire to each end of it with your fingers. Now put the "dead" battery in the charger and touch the ends of the wire to it from the good battery. The unit will sense power and start charging the battery you thought was dead. This happens if you let them sit dead too long but the batteries are usually still good. see less
By Brian M. on February 6, 2014
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I always use the soft-charging option. I mostly charge AA batteries and even in soft-charging mode they can fully charge in less than 30 min.
By Michael on September 3, 2013
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I use Powerex batteries and I've never noticed this not to be the case. I've also switched over to the Imedion powerex batteries and I don't have to worry about leaving them in the charger. These keep their charge much longer without being on a trickle charge..
By bilyboy65 on December 19, 2012
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No. This unit uses 18 and 20 volts on a multipin connector, you could use a small inverter in front of it to run from 12 volts.
By Timothy A. Owen on September 19, 2014
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Dear Charles,
You can charge your 8 D batteries at the same time in four hours (newly used batteries) or six hours (brand new never used batteries). However, this estimate will vary from brand to brand. The better the quality the less time for charging. Your fan should work for a few hours (2,5 to 4 hours) but then ag… see more
Dear Charles,
You can charge your 8 D batteries at the same time in four hours (newly used batteries) or six hours (brand new never used batteries). However, this estimate will vary from brand to brand. The better the quality the less time for charging. Your fan should work for a few hours (2,5 to 4 hours) but then again this may vary according to capacitor's quality on your fan.
What I can affirm though is that this is, BY FAR, the best charger I have owned. Only con is that doesn't charge 9v batteries.
Hope that helps.
Have a good one. see less

By joe on May 27, 2015
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Yes, this will charge the eneloop pro just fine
By PhotonLight.com, Inc. on September 27, 2015 SELLER
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James,
The question that you ask can be found in the item's manual. This charger is designed to meet all battery issues. The manual, if you do not physically have it at home can be found on the Internet. This charger will give you years of good battery service provided you read the manual to understand its FULL capabi… see more
James,
The question that you ask can be found in the item's manual. This charger is designed to meet all battery issues. The manual, if you do not physically have it at home can be found on the Internet. This charger will give you years of good battery service provided you read the manual to understand its FULL capabilities. You will not be disappointed!
Good luck!
PS: In answering your question: YES!- you can stop the battery discharge phase. see less

By Louis Estrada on March 10, 2015
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No, it does not charge 9-volt batteries. Does what it says. Exactly what is stated.
By Doreen on September 12, 2014