msmith1199 wrote:
Well, when I ran the generator four hours a day the batteries last through the night without a problem and still had plenty of power to start the generator the next day. So I guess you’re wrong. I’m hoping to find a way to run the generator 2 or 3 hours a day when dry camping and not have to scrimp on power overnight. I think another 70ah would do it.
I wouldn't say I am wrong. I am trying to understand what you said. so if you barely made it through the night and you don't change anything but adding 70AH to your battery capacity then ya, that first night you will make it through no issues, the second night just barely and by the third you will be in the same boat. What I would suggest in that case is to go ahead and upgrade your battery but also add a 350-to-400-watt solar panel with a mppt controller. This way the solar will add charge all day and you only have to run your genny if needed for AC or an emergency top up. for example, when my 325watt panel is charging at full it is putting 22AH into the battery per hour for a good 4 hours a day then smaller amounts for the morning and evening. I estimate on a good day it can recharge 120 to 160AH and that's being conservative. So, with a 350-watt panel or better yet, two 350-watt panels you may never have to use your genny against 100% . the panels are cheap if you have no issues dropping 2400 on a 270AH battery you could probably do two 350watt panels and a controller for 600US (guessing but I know they are cheaper than here and I can get that panel for about 240 cdn and the controler for 200.00 so I figure it's got to be under 600US) only other cost would be install if you can't do it yourself.
The good thing about this kind of setup is you already have the genny so if you notice it's a cloudy day and your panels aren't preforming quite good enough then start up the genny and add a bit more charge.