Charging A Lithium Ion Battery With A Solar Panel

For choosing solar cell you must choose.

Charging a lithium ion battery with a solar panel.

Solar energy is abundant on earth surface. Voltage of solar cell 1 5 x voltage of battery so 3 7v to 4 2 v of li ion is equivalent of 5 55 v to 6 3 v of solar cell. To sum all of this up yes you can charge our amptron batteries with standard commercial solar panels but a charge controller will be needed. Here i am going to build a 18650 lithium ion battery charger harnessing solar energy.

Current of solar cell should have 1 10th of capacity battery diveded by 1 hour for ni mh batteries. This voltage is given as input to the tp4056 li ion battery charging module which in this scenario acts as a solar charge controller. Charging cars by solar cell would appear to be the answer. Otherwise it may lead to explosion also.

No you should not change battery with solar panel directly as solar panel voc is 17 18 volts and battery is 12v and while charging it can be taken to 13 5v. But most cells fail to meet the power requirements needed to directly charge lithium ion batteries used in today s all electric and plug. A 12volt solar panel has up to 25 years service time that s make huge money save and powering the life. So you need to get a device called solar charge converter which regulates this solar volt.

As for charge controllers an mppt charge controller will definitely be the preferred option unless lowering cost is really necessary and as for mppt charge controllers it is preferable to use an mppt charge controller that can charge the battery with an lifepo4 profile. Tp4056 then charges the battery from the solar power itself. As above as an sla targeted 12v panel makes about 18v at full sun full load such a panel will provide more than enough voltage under all practical light conditions. An inverter converts this dc electricity to ac electricity used home or commercial devices.

If you want the panel to charge the battery to fully charged even on a low sun day if necessary then you need a panel that is full load rated at at least 12 6v 90 14v. For li ion battery i choose solar cell with 5v and 160 ma.