Total posts : 45366
I’d lean towards a small deep cell (Marine) type battery. A sealed battery doesn’t allow you to keep an eye on the electrolyte level. I don’t know how small of an amp/hr. rated marine battery can be bought but I believe you can get more amp/hrs. for less money. Also, if you need a replacement, marine batteries are sold at many different places. Might be a bit of overkill but the replacement costs would be lower and the maintenance of the battery would be possible. Adjust your panel size a bit and install a few lights at the xmtr building for possible night time repairs..
(Or, just a place to hide..) 😉
The charge controller is great! PWM charging helps keep the plates clean and gives a deeper charge to the battery and some headroom if you plan to add some wattage in the future..
I looked at the panel you posted and a couple red flags came up. I didn’t see any kind of warranty. My suggestion is to buy one that has a written warranty with known quality. Most are 20 yr.+. They may cost a little more but you can be sure that your investment is covered. Also, not much on how the wires are connected to the panel. I suggest a weatherproof type connection which most panels of quality have. One must remember this is going to be outside in all of the elements so this is very important. I’ve got stung a couple of times trying to save a buck..
You need to take your location into consideration also. ANY kind of shade can cause you problems! A shadow from 1 tree limb can reduce your output from the panel a lot! Telephone poles, power lines, signs.. anything that can make a shadow.. STAY AWAY!! Wide open sunshine is a must! I had to cut down several beautiful oak and cherry trees to avoid shadows. Especially in the fall/winter when the sun is at a low angle..