Arduino Lithium Solar Charge Controller

At night the charge circuit disconnects and the battery is used as the power source for the circuit.

Arduino lithium solar charge controller.

This is an updated version of a charge controller circuit i ve had up for a while. Simple mppt maximum power point tracking solar charge controller for 18v solar panels. Trying out the ltc3780 dc dc buck boost module. I have a trinket that i m going to be powering off of a small lithium ion battery.

I was also considering adding a small solar panel to the mix and using the solar panel to charge the battery. Very safe to use as it s equipped with an automatic arc fault detection that trips a circuit when it detects. I combine both the energy meter and charge controller in this design. Programmable with arduino ide.

5v or greater solar cell 3 7v lithium ion battery. This is an atmega32u4 based synchronous mppt buck solar charge controller. Soldering ion hot glue gun drill dremel. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display integrated solar chargecontroller inverter powerbank lamp project tutorial by shahariar.

Adafruit industries unique fun diy electronics and kits usb dc solar lithium ion polymer charger v2 id. The 03962a charge controller also allows charging from a 5 v cell phone charger usb mini cable. Electrical tape shrink tubing double sided foam tape solder altoids tin or other enclosure tools. Built in dc gfp and arc fault solar wind energy and hydro mppt modes and extension of voc limit.

We cannot guarantee this will work with solar panels purchased elsewhere. Arduino pwm solar charge controller v 2 02 to solve this problem i made this new version charge controller so that anyone can use it without changing the hardware and software. 12 72v max input voltage. 150v max current output.

2 600mah 4 400mah 6 600mah lithium battery charge controller dc dc usb boosting circuit 2 5mm female panel mount plug 2 5mm male jack with wire 1n4001 diode wire building supplies. 1 charge controller as well as energy meter 2. This product is only designed for use with solar panels sold at the adafruit store. Please purchase this kit and panels from adafruit to ensure optimized functionality.

Proper buck converter topology which increases the current on the output side not just pwm. Specification of version 2 charge controller. Dc dc buck boost.