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on October 29, 2013
It outputs only 600 mA which is very low in relation to the larger size batteries. You end up with significant charging times. The largest batteries have 7 Ah which means it needs 12 hours to charge an empty battery. The other thing to keep in mind is that these chargers rely on the internal protection circuit of the battery. They don't actively monitor voltage nor temperature. The only reason they can get away with it is by keeping the charging current so low. Faster charging rates require smarter electronics that monitor the battery properly. Nothing wrong with have a bunch of these as cheap alternatives, but just know that there are differences between good (fast) chargers and that there is a reason why they are more expensive.
The option to charge from a car cigarette plug is a nice feature until you realize you won't be leaving your car running for 8-10 hours just to charge a battery and even during a 2 hour drive you won't be able to get much charge into your battery with this.

One little tip to extend the life of your batteries. Lithium batteries age faster the higher they are charged. If you always charge a Lithium battery to 100% it will age faster. If you only charge it to say 80% it will age less and last many many years. Same is true for storage. Don't charge them when you know you won't be using them for a while. Keep them at 30-40% and charge them the day before you need them.
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on August 7, 2017
I have used these charger 3 times. The problem is very common with these chargers.
When plugged in with battery the light stays on green.
They should turn red and then green when the battery is done charging.

Contacted Seller and they do not support their product what so ever. Be warned that these chargers are throw away chargers.
I wish I would have never bought them.
You have been warned.
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on April 18, 2014
I have a Graphtec data logger that takes a Sony NP-F550-type battery. I bought two cheap Sony NP-F550 replacement batteries...mostly just to verify the size and voltage compatibility and needed a charger for them, as Graphtec recommends that you charge the batteries individually...outside of the logger.

To fulfill my need, I bought this cheap "Battery Charger for SONY Li-Ion NP-FM500H NP-F550 NP-F570" from Amazon. It works like a champ and holds and charges the batteries just fine. I knocked off a star because it doesn't support the third terminal used by the Sony chargers with the batteries.
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on September 18, 2014
Real piece of junk
Charged two batteries, and by the time they needed re-charging the charger won't quit charging correctly.
Batteries charged just fine in two hours the first time around.
When I went to recharge the batteries a little over a month later, after over 4hrs of charging the light on the charger never went from red to green indicating battery was charged. The charger got quite warm. I put the battery into the flood light and it indicated the battery had a full charge.
Good thing these things are cheap. I'll try a different brand.
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on October 19, 2016
It doesn't charge any of my NP-F550 batteries. I have 3 different brands, and 9 batteries, and none of them charge on this charger. The light constantly stays green which means that it is charged, but when I put it in my LED lights they don't turn on.
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on March 11, 2016
I have to physically hold the battery (a 7000 mAh) on the charger for it to work. Light otherwise stays green and nothing charges. Even tried plugging it in upside down so all the battery weight is pressing down. The one I got is branded "Kastar" and I am plugging a "Kastar" battery into it so there should be no issues.
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on June 21, 2017
Product was defective, power light comes on but does not charge batteries. Returned for refund.
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on May 15, 2014
I bought this charger to charge a Sony NP-F550 battery.

Worked extremely well. Charges fast. Small footprint. Best price for what it is used for. Recommended buy.
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on April 29, 2014
I bought a bunch of these to make a charging bank for those pesky small batteries for my SONY cameras and video cams. I used a decent sized protected strip, metal and all three prongs though the chargers only have two prongs. The bank has eight ports for all of my batteries. I have these smaller chargers, firmly in place. I used a thin two side rubberized tape in a small square behind the plug where the ground plug would be, to keep them in place. I will have pics on my website [...] under Gizmos.
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on January 18, 2015
You just can't beat that!! For $5 and $8 for the replacement battery, everyone that is in any sort of production/ hobby situation needs to have this! The greatest thing is to charge a battery or its backup in the van between quick turnaround events!
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