Solar charging batterries
Wanting to add a solar battery charger. I have searched and searched Google about this and didn’t find the answer to my dilemma. I found a couple of forums that mentioned a potential problem wit...
Forum Discussion
You have your device hooked up properly.
It's only 18 watts which is barely anything. Your RV's propane leak detector, CO detector, stereo memory, and refrigerator circuit boards probably pull more power than it is producing, thus you're still discharging your batteries.
If you want to use the solar power when camping you should be looking at something like a 100 or 200 watt panel.
Here's a rough idea of your system. Your 2 6v batteries probably have a capacity of around 220 AH. If they are discharged 50% you need to put back in 110 AH. That little solar panel of yours is probably only capable of about 1 amp when in full bright sunlight. That type of condition only happens about 4 hours a day. So, it would take you around 27 bright sunny days to recharge your batteries from half way down. This is assuming you have absolutely no other draws on the system, which isn't the case.
That panel is kind of like spitting in the ocean.
It's only 18 watts which is barely anything. Your RV's propane leak detector, CO detector, stereo memory, and refrigerator circuit boards probably pull more power than it is producing, thus you're still discharging your batteries.
If you want to use the solar power when camping you should be looking at something like a 100 or 200 watt panel.
Here's a rough idea of your system. Your 2 6v batteries probably have a capacity of around 220 AH. If they are discharged 50% you need to put back in 110 AH. That little solar panel of yours is probably only capable of about 1 amp when in full bright sunlight. That type of condition only happens about 4 hours a day. So, it would take you around 27 bright sunny days to recharge your batteries from half way down. This is assuming you have absolutely no other draws on the system, which isn't the case.
That panel is kind of like spitting in the ocean.
