Universal Cell Phone Lithium Battery Charger w/ USB Power Port - Blue (EU Plug/100~240V)

Pros: It can use in the various Li-ion batteries. >various size OK >Batt reverse connection OK. safety(auto change) >charging speed fast nice working.

Cons: this product, the instruction manual is insufficient. I measuring, solved this problem. Long haul it was required. Red LED blinking is charging. Blue LED turn on is finished. max voltage 4.2V just. other. spring is hard. compress is hard. I remodelled resolution. Using the plier, it extends the spring.

Other: it's convenient. but, This product is too large for travel. It is thick.

Pros: cheap
USB Output 200mA max.
Charging current 180mA (theoretically 300mA with a discharged battery)
Output voltage of 4.20V at idle.
value
Automatic detection of polarity. You can insert in the network and then put the battery. Can you first insert the battery and then insert in the network. Done on a chip CT3582C which according to the documentation automatically detects the polarity of and is protected against short circuit.

Cons: Small charging current. The absence of Fuse. One rectifier instead of diode bridge. This means the output voltage ripple will be large.

Other: I have not found anything better here.

Pros: * Fits any (reasonable) size/type of battery; tested on two Galaxy S batteries (a standard 1500 mAh and an extended 3500 mAh one) and two Sony H50 camera batteries (an original NP-BG1 and a replacement also bought from dx). * Great for replacing all of my travel battery chargers. * EU plug, which is a plus.

Cons: * Charging (at least on the Galaxy S battery) is noticeably slower than using the custom charger, especially on the 3500 mAh battery.

Other: Given the price, this is an excellent travel charger.

Pros: Very good charger, functional, meets the specified and I had no trouble reloading several cellphone batteries, and in the case of an old motorola had to separate the positions for the indicator light sparked and he started charging. A marvel works perfect!

Cons: I thought the battery contacts a bit fragile.

Other: not