A surveyor wouldn’t touch it with a ten foot pole (I know this because my friend’s a surveyor and said so), but that’s a legit home made 12-volt lithium battery for $300 vs. the $700-1000 you’ll pay for a “marine” one.
Each cell is about three volts and that little red box is a battery management system (BMS), which keeps it all distributed evenly. The wires off the BMS are soldered to the positive end of each cell . There’s even a fuse on the battery to limit risk of fire in case the battery shorts out. Plus, it’s lithium ion vs. lithium iron. Lithium iron is apparently the more dangerous one, and if one cell melts or gets too hot it can start to burn any cell that is next to it.
It’s the way of the future, and lithium 12-volt batteries are way more efficient and longer lasting than lead acid. But of course like anything it comes with risks and consequences.
Where did the lithium in my batteries come from? Probably some horrible mining practice. I’ll look into that. It seems we just can’t escape the environmental impacts that come with being a human and consumer.
In the meantime I’ll be getting lots of work done on my computer because I can finally plug it in on board. This is the first time ever I’m able to have sufficient power on a boat I’ve owned. I even have a food processor. Hummus anyone? Plenty of solar aboard to charge everything and this battery can easily be disconnected and brought to land to charge! They’re also so much lighter than lead acid, and if you’re really clever you can swap them back and forth with your electric bicycle which is all these cells are anyway. Electric bike batteries.
I am not that type of clever, however, so just leave me to some basic carpentry and fiberglassing. This addition to Sohund is definitely not my creation, but I’ll take it!
Hang in there folks. Spring is almost here. I came out of the boat and I didn’t see my shadow, so– I’m sure of it.
A short note: Please sign up for email updates below! My subscribers all got deleted! All that’s left are 13 randoms and one of them has already sent me hate mail saying I am deranged and to take him off the mailing list. Sorry, but I don’t even know how you got ON the mailing list let alone how to get off it . So I guess he’s out of luck.