im trying to experiment with solar panels. so i dont want to buy a huge expensive solar panel if i dont need one.
They are powered from internal batteries, so what you really want to do is to charge the batteries. Take them one at a time, as they have different power and voltage requirements. Don't try to do them both together, unless you use an inverter. To directly charge a battery from a solar panel, you need to find out the voltage and current requirements for the charge operation. Then find a solar panel with a voltage somewhat higher. the current can be lower, it will just take longer for the charge. You will have to monitor manually the state of charge of the battery(s) to avoid overcharging and damage. Another alternative is to get a solar panel that will supply 2 volts and use that to operate an inverter that will output 20 VAC with AC sockets on it. then you can plug in the battery chargers that you have, and they will handle the batteries correctly. Or you can buy solar panels with built in circuitry to handle the charge control. .
Oh, i could hate that!! i'm continually having to locate a marvelous sufficient spot to apply my photograph voltaic calculator, very stressful. Dimly lit would not keep it going. i could somewhat have a reliable, rechargeable battery. Now, photograph voltaic backup may be high quality. you will desire to touch Nokia and tell them approximately it. possibly they're going to call the telephone once you!
