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Got that updated, tail was at 2%. After a minor headache, I got the BMS software to connect without the program freezing and manually reset the SOC in the shunt. I'll report back tomorrow, hopefully that fixed that issue. I found you can't always count on the batteries' lights being accurate...

I took a look at the calculator you sent over.... I'm not quite sure how to input the values with the values being different for two sizes? The values for the 455W are: Pmax -0.35%/C Voc -0.29%/C And the 175W: Pmax -0.37%/C Voc -0.28%/C I was interested in the value for just under freezing...

Thank you for the detailed replies! For now, I'm just interested in getting the two 455's on the roof. If I really, really feel like I need the extra 175w panels, I'll buy them at a later time. I'm hesitant to buy them though, the 'price per watt' is pretty bad. I paid $255 for the 455's, two...

Hello, I am in the process of building my first box truck conversion. Unfortunately, necessity dictated that I set up a system and see how it went after some real world testing. Ideally, I would have all the components I needed to do a proper power audit, but that wasn't possible in my case. So...