Ever wanted to build a solar powered project? This can make the dream happen with turning the solar energy charge a Li-poly battery and then output 3.3V and 5V outputs. It's so easy to use, you just plug in the solar panel into the screw terminals, 2-pin JST connector for the battery and then either use the header pins or screw terminals for all the outputs. Even easy to see LEDs for the current status of the charger or low battery indicator. These are also on the header pins to connect to any microcontroller.

This carefully designed charger is meant for solar charging and will automatically draw the most power out of the solar panel in any conditions. It is as close to a true max power point tracker (MPPT), without the additional cost of a buck-convertor.

This comes as an assembled charger and voltage regulator board, easy to use terminals and connectors for the solar panel, battery and outputs. It does not come with a solar panel or Li-poly battery.

• 3.7V/4.2V Lithium Ion or Lithium Polymer battery charger
• Charge with a 6V solar panel or USB
• Automatic charging current tracking for high efficiency use of any 6V solar panel
• Can use any 6V solar panel
• Three colour indication LEDs - Power good, Charging and Done
• Low Battery Indicator
• Set for 500mA max charge rate (can be adjusted from 50mA to 1A by changing a resistor value)
• Smart Load Sharing - automatically switches to input power when avalable, to keep battery from charging and discharging constantly
• Temperature monitoring of battery by a 10K NTC thermistor - automatically stops charging battery when it is too hot
• Header Pin Output - 5V, 3.3V, Power Good, Charging, Done, 5V Power Good
• Screw Terminals for 3.3V and 5V outputs
• 5V output with up to 800mA current output
• 3.3V output with up to 500mA current output
• Header pins to enable/disable the power supplies separately
• Board Dimensions: 35mm x 35mm