SPAM
You'll do fine with an 80w/12v panel and adding a small charge controller will give you peace of mind about not overcharging the battery.
Basically the way to look at it is,that you will be running the devices off of the battery, while the panel/charge controller replenishes or just maintains the battery charge. An 80w panel should give you about 4.0 amps or so output in good sun.
Are the devices you are going to power AC only or DC capable? If AC only, an inverter will be required and sized to handle the AC power for the stereo and or Wii. Assuming something like a fairly small 100 watt inverter for an example, the input current to the inverter if I'm remembering right, would be about 8-9 amps depending on how efficient the inverter was. So for say 2 hours of use and 16-18 amp hours out of the battery, you'd want to make sure you have at least a say 40ah battery, so you do not take it below 50% capacity before recharging it.
Keep us posted on the project...
You'll do fine with an 80w/12v panel and adding a small charge controller will give you peace of mind about not overcharging the battery.
Basically the way to look at it is,that you will be running the devices off of the battery, while the panel/charge controller replenishes or just maintains the battery charge. An 80w panel should give you about 4.0 amps or so output in good sun.
Are the devices you are going to power AC only or DC capable? If AC only, an inverter will be required and sized to handle the AC power for the stereo and or Wii. Assuming something like a fairly small 100 watt inverter for an example, the input current to the inverter if I'm remembering right, would be about 8-9 amps depending on how efficient the inverter was. So for say 2 hours of use and 16-18 amp hours out of the battery, you'd want to make sure you have at least a say 40ah battery, so you do not take it below 50% capacity before recharging it.
Keep us posted on the project...
