posted 3 weeks ago
Hello folks, back online after 2.5 weeks away from home. Appreciate the advice for my newest project. I am still mostly using LFP batteries but ...long story....was forced to add a backup battery that is LA. It is external to my AIO system approach, so not connected series/parallel to the system except for remote storage. The setup worked flawlessly for my September work session. Here is a summary
" I just returned from 2 weeks on the lash, so to speak, camping out at the job site with buckets of cold water overhead for a shower. A diet of sardines, beans and raw vegetables. A quiet spot with few distractions, very meditative. Some progress , and repair is moving along. My project is an old stone house in a Mediterranean climate, coldest month is still average 45 F, so freezing battery is not an issue.
I now have two AIO units, one 250 Wh and the other 1100Wh. Using the larger unit with a single 450W panel is working well, even with some foggy days. I have one backup LA 12v battery that I charge during daylight hours, it is set up to then pass along DC current to my small AIO unit. My only big power draw is a Bosch grinder with a variety of wheels....normally needs 120 watts but only for short periods. Most of my power is to charge batteries for tools and phone, and 2 Led lights. Sawing wood by hand, then using power for drills, reciprocating saw and a multi tool.
Most of my days thus far are heavy on concrete and stone work. I hand mix all mortar and occasional special buckets with 1 to1 ratio of fine sand/Portland. Power production is keeping well ahead of power demands
I will say I appreciate the lighter LFP batteries, they have some drawbacks but it seems they are about half the weight of the LA ones. Time will tell if they are a good choice versus the old style. This is a leap of faith
5
