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I'd have expected physically smaller fuses to have greater power loss than larger fuses - that is, a MIDI fuse to have greater voltage drop than a MEGA fuse of the same rating. However Victron's MIDI, MEGA and ANL fuses, and fuse holders data sheet says otherwise...

I'd wondered what would happen when a panel directly connected to a battery went dark, would the panel draw power from the battery? Turns out, no: I connected a voltage and current-controlled power supply to a set of three parallel Victron SPP041751200 175W panels, at night, with the current...

Here's a picture of the junction box on the back of a Victron SPP041751200 175W panel: Notice the three diodes - yet only two panel sections (three tabs). The panel physically is an arrangement of 4 x 9; electrically connected in 2 banks of 18 cells each. I'm wondering why they've installed...

I'm about to bite the bullet on 16 x 202Ah cells from Luyuan (Amy, redirected from Xuba; have been quoted 72.90 ea. + 214 shipping to AU, total USD 1380). Amy has stated these are CATL cells. I'd like to hear from anyone who has been operating a bank of these ubiquitous blue-shrink-wrapped...

It's winter here in the southern hemisphere. That means shorter and more overcast days and less solar energy charging my son's 2013 Sprinter's LiFePO4 house battery. To augment the solar system we recently installed a Renogy DCC1212 DC-DC charger, the 40A version. Before installing it, I wanted...