1, the whole plate uses precious metal ceramic capacitor, X7R temperature characteristics, performance + safety + stability far exceeds the capacitor.
2, copper strip 5A large current small volume inductor, fully closed magnetic low loss low interference
3, single-sided machine mounting, the overall 4mm thin, small heat dissipation area good back exposed copper for easy installation and heat sink.
4, based on C-DC step-down, the efficiency is much higher than the linear charging circuit heating is also much smaller charging current 1A, but the input current is only about 0.7A is enough.
5, optional iron phosphate carp battery or ordinary carp ion/carp polymer battery, only one jumper can be set.
6, small size, 1 dime size, 1A charging without additional heat dissipation 7, with overheat protection, overheat will automatically reduce the current to prevent burning 8, full of automatic stop, two-color charging status indicator.
Main parameter:
Volume: 21.5mm*14.5mm4.2mm
Input: 4.5-9V (recommended not to exceed 7V)
Output Voltage ◇4.2V/3.6V◇ Plus or minus 1% jumper selection
Output current: Default 1A, can be customized 0.5-2A, more than 1.5A need to add heat 4 terminals: 2 input, 2 batteries, and with a direct insertion LED welding position
Method: 1, lithium battery only need to connect the 5V power supply, output B +, B – connect the battery.
When charging, the red light is on. When charging, the green light is on.
2, used for lithium iron phosphate battery 3.6V, only need to solder the tin point between the two pads. The power battery connection method remains unchanged as above. If you need to recharge the 4.2V lithium battery, you can connect it back with the solder pad
Method: 1. For lithium batteries, simply connect a 5V power supply and output B+and B -, then connect the battery.
The red light is on during charging, it automatically stops when fully charged, and the green light is on after charging.
2. Used for 3.6V lithium iron phosphate batteries, simply solder the solder dots between the two pads with a soldering iron.
The method of connecting the power battery remains unchanged as described above. To change back to charging 4.2V lithium battery, use solder pads
Simply solder it back together.
