Crazepony 1S LiPo Battery USB Charger 3.7V/4.20V 6 Channel 1S LiPo Charger Tiny Whoop Blade Inductrix Micro JST 1.25 JST-PH 2.0 mCX mCPX Connectors

I plug this into the USB socket of a car jump-start battery to charge model airplane batteries. It works well. The flashing that indicates a live socket with no battery is fast and a little hard to see in sunlight. Green indicates charging, which is easy to see. No LED indicates that charging is complete. Not really a problem, but it'd be better to have a different color or a different flash rather than nothing. At the price you really can't fault it. My wife is going to like it because it doesn't emit a loud beep when the battery is full.

Worked great! I plugged in 3 new 1S 150mah LiPos and they were done in about 1/2 hour. Used the .2 a rate which was easy to change with the dip switches. It seems to be a great value. I might just get another one to take to the flying field for the price.

**I would recommend some knowledge of batteries, and a multimeter check before use to be safe! ** This thing is working great for me and charging my batteries for my LoRa boards on the go. The charging ports are very secure and there is no worry about them coming apart when removing or if a battery dangles while charging (though I don’t recommend this). The usb connection is also very strong, it does not wobble. While the quality of the board does not feel “quality” it does not feel like junk either. The soldiering is not perfect, but it works. I have done worse jobs myself. Summary: I wouldn’t throw batteries in this and leave the room, but is a great solution to bulky converters or an expensive set up to someone new to a hobby that uses these batteries.

I have a barcode scanner that has a small lithium ion battery inside. Just recently the proprietary charging port broke and the unit will now no longer charge by cable. I started researching an option to charge the battery outside of the scanner and came across this unit. I wasn't sure which connector I needed because at a 3.7V battery and a 2 pin plug it seemed like it might be the same micro JST connector popular in the remote control hobby. Unfortunately there are numerous sizes and styles of connectors so I took a gamble with this one. Luckily the connector fits perfectly and the battery charged to full within an hour at the 0.6A charge rate. The indicator light shows green to show the battery is charging, and turns off when it is complete. The battery didn't get warm, the build quality of the board seems very good, and the expandability to have 6 batteries charging at once is great.

This charger is outright dangerous. I returned the first one after it short circuited the moment a battery was plugged in with the positive and negative leads aligned correctly. The replacement unit arrived and behaved exactly the same. As soon as a battery is connected it overheats, starts smoking, gives off a burning smell, and the plastic housing begins to melt. I tested several known good batteries and ports and the issue happened every time. The problem is clearly a serious internal defect. This product is unsafe, unreliable, and should not be sold. Avoid it completely.

This is a very nice little charger. One feature that some will find useful is this charger can be modified to suit both charging formats. As most know, there are two formats for one cell lipos, positive on the left and positive on the right. With a multimeter I determined which pin was positive and which was negative. I color coded one side with a black Sharpy so I always knew which side was the negative pin. On the other side I took an Exacto knife and carefully slipped the blade under the plastic socket and pried it up and off from the board. I then flipped it 180 degrees and pushed it back down onto the pins. I repeated it with the entire side so I can now charge either format with this device. If you are careful you can reverse one side and then mark it with no difficulty. There is a real opportunity for someone to make a one cell charger that either auto senses the voltage orientation or offers plugs in both formats on the same device.

I use this to charge my lithium batteries. It's super helpful and they work great.

Only get this if there is no possible way to afford the vifly whoopstar v3. This gets the job done, but it's a little rough around the edges and, most importantly, does not charge to storage voltage (3.8v). Batteries will go bad overtime when stored at full (4.2v unless the battery says otherwise). This only charges to 4.2v. If you have a 4.35Hv battery, it still only charges to 4.2. The vifly is about 3 times the price, but is 50 times more polished, can put batteries to storage voltage, can charge to 4.35 (only do this if your battery says you can), and will save money in the long run when your batteries don't go bad because they were properly stored

Fais ce qu'il doit faire.

day onewas OK butbday two, plugged in two3.7voltb 400mah batterires got red chzargevlight followed by a puff of smoke and the piece of junk quit dead as if I shot it

ne charge pas les battries complètement seulement quelques secondes de vol

Not working properly for parallel charging. Sorted out by Amazon customer service