Also great for trips, i can keep an extra Fully charged battery in my wallet

It's not the fastest charger -- I put a completely drained battery in almost 4 hours ago, and it's still not quite charged

I am used to seeing green for a good battery but when the battery is taken out of the charger, the light is still blue until another discharged batter is inserted.

However, skinnier Galaxy S5 batteries are just about as wide as the slot and thus tend to get pushed away from the pins

I have springloaded both batteries at about 50 percent charged and stabilized the device to get a purplish light in every instance.

But it said it would correct wrong polarity automatically so as not to damage the battery

It holds the battery tighly and you don't have to worry about something bumping it and knocking the battery out (like other chargers).

Good battery charger

Without being plugged into an outlet, if I put my dead battery in, the light comes on blue

This item worked great for a few months, I always had a fully charged extra battery for my Samsung Note 3 at the ready

I love the fact that this charger is a smart charger, and automatically stops charging when the battery is full!Thank you for making this product

Allows me to keep extra battery ready

This charger brought my totally dead battery up to a 100% charge in 3 1/2 hours

My battery had been dead for 4 days

Seems very good so far no problems with several Galaxy Grand Prime batteries, build is a little better than I imagined.

The charger did a nice job of fully charging the dead battery in about 2 hours.

Takes overnight to charge completely but is great for my spare Note 4 battery

Doesn't work for Samsung Note 3 battery.

Wow really great battery

I give it 4 stars but it did recharge my batteries like its supposed to, however at first I couldn't tell how to work the thing, the two sliders that connect to the battery only has two prongs, while the batteries show three plates of copper

He can now use his phone, thanks to this wonderful cell phone battery charger!

Love charges my Samsung batteries all different sizes.

the light on the charger never turns red to indicate CHARGING.....it automatically turns to blue to indicate fully charged and this happens EVEN WHEN I put my completely dead battery on

Being able to adjust the pins to fit just about any small battery is great

Typically I need a fresh battery around the middle of the day (5 or 6 hours into work)

Works perfectly charging batteries

Works good with charging my back up battery for mega 6.3

I have two different Samsung batteries and it works for both

Before receiving this charger I was using a unit purchased from Radio Shack for $40, the Radio Shack charger would only charge my battery to 90% (really frustrating) and disappointing

Didn't work, didn't charge the battery, indicator light never indicated a full charge even after 8 hours of charging.

Charges battery nice and easy, so when I run out of lower, I have another waiting for me

Also, while now the indicator goes very pink when I put a depleted battery into the cradle, the color never changes regardless of the amount charged, so I have to guess when its fully charged -- take it out, put it in the phone, remove if not satisfactorily charged yet.

It fit perfect for my samsung mega battery just not for my samsung note 4 battery

I just swap out the battery, and when I get home, slap the near-dead battery into this charger without having to put it back in my phone

When it worked, it worked great, it would charge the batteries a lot quicker, I think it's because it charges at 600mA.

I have an aging Samsung Galaxy S4; it drains batteries

Easy solution was to charge the battery directly, hence where this product shines

I've wasted so many years and so much money buying extra charging cables, when all I needed was a relatively inexpensive second battery and this charger

Two of them worked but are agonizingly slow charging the batteries from 20% up to the 90-97% charge range and took all night or day to do it

Within a couple of hours it seems like the battery is either fully or almost fully charged

Product works well if you’re phone charger isn’t charging your battery, great way to charge battery and not buy a new phone.

but it's a perfect extra battery charger

I only had one old battery to charge but it worked on my.current phone battery as well thanks to how adjustable it was.

Nice having a charged spare battery when we are out hunting Pokemon.

It also won't fit super narrow batteries

Customer Service!The product itself works very well with both of my Note 3 batteries.

It holds the battery tighly and you don't have to worry about something bumping it and knocking the battery out (like other chargers).

Purchased this from Amazon to recharge Samsung Galaxy J3 compatible batteries.

and there is always a fresh battery to pop in when needed!

I love having a spare, fully charged battery handy for my cell phone

useful, the current is a little weak, but it's reasonable since it may protect the battery

It stops charging when the battery is charged, so I can leave it on when I leave the house without fear of exploding the battery

I find that it overcharges my batteries (which will probably lead to premature battery life degradation), but it is nice to stay at 100% battery gauge reading for several hours

I feel like this charges my battery MUCH better than the traditional method of using the charging port

LED indicator is blue when I plug it in, even for a dead battery; never changes to red as other reviewers seem to state.

I was impressed as I had said my battery was completely dead when I put it in the charger

I love it, it charges the battery faster than any charger would

I just followed the instructions and am careful to put the battery in to not break the pins.

The battery works fine, it charges when I put it in my phone and use the usb charger

So easy to use, too!I had previously bought a new battery for my phone as well, months ago, because I thought my old battery was going bad

It is fairly fast, depending on the battery size, but I would still recommend ordering an extra battery so you don't have to wonder too much about how much longer it's gonna take or have to without your phone

MAny battery uses works well, Very likable product

I have an LG Optimus G Pro and two OEM 3.8v 3140 batteries -- larger batteries that hang over the side of the device, but within this device's advertised specs.

The batteries are great, I feel as though it lasts longer than the original battery itself

Worked great 5 times, now it doesn't recognize the battery

With my second battery I instantly have a fully charged battery when my other one dies

It charges fast and fits my smart phone battery and my husband's.

The batteries are charging at a good speed, not so fast that it harms the battery, but not so slow that it's inconvenient

Best universal battery charger I have ever owned.

Had trouble charging the battery in the phone

Good think the light changes color b/

Works as it says it should