I've got experience with HQST products and haven't been disappointed. I have (4) of this latest model with power display, and it is worth the small extra charge for the convenience. All the batteries perform the same and play nicely with my (8) batteries without the display, which wasn't offered when I bought them in 2023 (wish it had been). These (12) are wired as 3 banks of 4, giving a total of 15kWh in a 48V configuration. I'm also a fan of the 100W panels, and have 20 of these plus a dozen of the partner company Renogy's panels (wired as 48V strings), plus inverters and other gear from both companies. Not one of the 36 or more units I have gotten from them has needed an RMA, which explains my fidelity to the brand. Add to this that no shipping or sales tax has ever been added to my orders, everything has arrived quickly and undamaged, and I cannot see why one would purchase a no-name brand. BTW, the first battery I got, which is not capable of series configuration, cost $365 in 2021, and it is going strong in its lesser role as a portable power source. This current model is quite a good value.
