Hello,
So I've just started this new project and i'm looking for some help. I have a solar panel [5 watts (12 volts, 0.4 amps)] I'm using this solar panel to power two 120mm PC fans [2.5 watts(12 volts, 0.2 amps)] however I'm trying to incorporate a battery back up, so that the fans will blow even when the solar panel is not receiving light(night).
would it be as simple as running a diode between the solar panel and the battery array? so electricity could flow from the solar panel to the battery but not from the battery to the solar panel?
For my battery array I have several re-chargeable AAA batteries (1.5V, 900 mAh) how many should I use? i would need to connect 8 in parallel to get up 12 volts? how about in series?
Collin
So I've just started this new project and i'm looking for some help. I have a solar panel [5 watts (12 volts, 0.4 amps)] I'm using this solar panel to power two 120mm PC fans [2.5 watts(12 volts, 0.2 amps)] however I'm trying to incorporate a battery back up, so that the fans will blow even when the solar panel is not receiving light(night).
would it be as simple as running a diode between the solar panel and the battery array? so electricity could flow from the solar panel to the battery but not from the battery to the solar panel?
For my battery array I have several re-chargeable AAA batteries (1.5V, 900 mAh) how many should I use? i would need to connect 8 in parallel to get up 12 volts? how about in series?
Collin