Sealed lead acid batteries are acceptable for my set up. Vetus says that if the battery is going to be positioned with the thruster, a sealed lead acid (they call it their smf) or a sealed agm should be used.
I can’t imagine vetus would recommend anything against abyc, Grahamu could you post the details? I’m up for a new battery and would like to see the reg before I splurge on an agm. Lead acid works just lovely. Thanks
Fist day back on the boat yesterday, was glorious. 41 degrees cold inside storage and 9 degrees outside. I took a look at my thruster battery box as I was curious about venting. I have to give cruisers yachts credit. There is a thru hull coming in to the box and a hose connected venting the box outside. I was wrong, there are no vents in the box, but it’s vented to a grill on the hull of the boat. You can just barely see it in the pic I posted. Lower left corner of the box.
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Dream 'Inn III -- 2008 400 Express
I took a look at my thruster battery box as I was curious about venting. I have to give cruisers yachts credit. There is a thru hull coming in to the box and a hose connected venting the box outside. I was wrong, there are no vents in the box, but it’s vented to a grill on the hull of the boat. You can just barely see it in the pic I posted. Lower left corner of the box.