Mostly spent the first half of today reading the last couple hundred pages of a novel I've been reading through on-and-off for the last couple of weeks (Sons of Darkness by Gourav Mohanty, if you're curious). Quite enjoyable, though I've no idea when I'll find time for the sequel.
Got a new set of battery cables for one of my solar batteries the other day but I don't like the connectors on them. The ones that came on the cable are aluminum and the bolt hole is too large for the battery's terminal bolts. As a result the metal around the hole - the part that actually connects with the battery terminal and carries the power - is too thin for my comfort. So I'm replacing the lugs on the cable with ones that are a bit more substantial. Mine are solid copper and larger overall but with a bolt hole of the proper size for the battery's bolts. More importantly the surface area for contact with the battery terminal is much greater. The same power going through more metal means less resistive heating and a cooler connection.