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so a year ago I decided to build a small (2kw) system for my RV that turned into me reselling about 200 solar panels to fund a larger system. in the process we bought land that had grid power already, so I've been able to take my time. --------------- things I have on hand: 2x mpp...

I built a 8s2p pack to test with I let it rest a couple days. Last night I attached my MPP and enabled it to charge from grid This morning I checked it and found this: Didnt have time to mess with it this morn6. Guess I'll tear it down and try again tonight.

I live in a motorhome, it came with 12v 300ah of lead acid that I plan to keep in place. it powers all the lights/pumps and our new 120v residential fridge. I'm planning a 24v 240ah lifepo4 pack as the target for my solar array. (I have 48 120ah cells on the way, so this could wind up larger)...

Having just ordered 48x 120ah cells I realized I need some tools and testing gear. I plan to make a 8s2p pack and a 4s2p pack for myself. I have a chargery 8t ordered and a random 4s lfp bms I also have a mpt-7210a, a few 10-30a epever mppt controllers, and some 12-48v smps sleds. I know I...

in reading the long XUBA thread I learned that "Amy Amy" is involved with Shenzhen Luyuan Technology Co., Ltd. I just placed an order with them via Alibaba for 48x 120ah cells. the shipping calculator was apparently wrong on the 120ah cells, quoting me $170 for all the cells. after the order...

preface: I'm a lifelong forum user and buyer of goods via the interwebs. issues I see: users should not be able to post FS threads without a few confirmed buys and/or references on other trusted sites item location should always be listed pictures should be required, preferably with timestamps...

I went to a junkyard for a car part the other day, I asked if they had any large battery packs and was told 'yeah back there, go look" there was a CR-Z pack, a fomoco 1.4kwh lithium pack (that interests me, I forgot to take pictures of it) and these.

I have 25-35 santan 250w 60cell panels available. NW AL area. I'm asking $100/each locally, but feel free to PM me offers. I'd rather not sell them all to the same buyer trades: electric golf cart, batteries, racking, other gear I may need for my solar build

Just got this $61 crimper in. Seems to be well made The wire is 5g and lug is 4 in the pictures

I stumbled across a 28' fema trailer that had to be gutted. I did that over the weekend. its down to wood and sheet metal. the seams at front and rear had never been re-sealed by the original owners, the pipe vents crumbled, let rain in -- but the membrane is in great shape. an entire rig...

this didn't even occur to me until I was buying batteries yesterday. I've bought over $2k of gear so far (panels, controllers, batteries, wiring stuff) can I claim any labor paid to independent contractors? what can't I claim? this is complicated by the fact that we live in a motorhome and...

I finally put my money where my mouth is. today I made my santan order: 20x 250w 60cell panels 1x mpp 2424lv 1x epever 30a mppt controller I plan to mount 8-10 panels on a old boat/utlity trailer, this array will have the MPP on it. I'm going to start with some rural king golf cart batteries...

I feel that some of these are redundant (vehicle, cabin, shed, marine) up to a certain size would it be better to seperate by size or budget? such as 100-1500w, 1500-4000w. there may be a better way to do it, I'm not sure. just wanted to start the discussion. I want this place to grow because...

I'm a big fan of the Aoyue refurbished irons, I buy them from SRA-Solder (their website, sometimes on amazon) I use the 469 at work for LED strips and simple through hole repairs the 937 lives in my soldering toolbox at home I have had my hands on a 3in1 hot air unit years ago and it worked...