Can I charge and use 18650's simultaneously or better charged first, block from solar, then use with the power inverter? Answered
I have been into DIY Solar / Wind for a while. Everything been working great until I planned to replace my lead acid batteries for the 3.6V LG HG2 3000mAh 18650's. With the lead acid I could power my house anytime during day (using solar panels) or night off-grid with ease. So, I bought a lot of 200 18650's and spot welded them in 4S50P. Balanced them, and all that good stuff (time consuming, and a learning experience). Installed a BMS on it too, have a 30 Amp charge controller for 4x100W solar panels which I reserved for this project. Now, I have been searching for a while if these 18650's can be used anytime (connected to solar panels and with the power inverter feeding the house at the same time) ... with no success.