What is the current practice for insurance companies when it comes to lithium installations installed by owners? The last I heard - admittedly some time ago - companies either wanted a professional installation or a professional check of a DIY installation. Is that still the case? Are some...
I installed a 4kw Planar on our 9.5m boat and because of some routing problems for the vents it it overheated and I changed it for the 2kw version. A massive improvement as it was noticeably quieter. When the 4 kWh was working (only when the conditions were very cold) it was on a minimal setting...
As others have said, you would need to put some work in to ensure an LFP back-up starter battery remained in good health. For a long life it would need to be only charged to mid-range but you also need to ensure that self-discharge - especially if stored in hot conditions - doesn't take it to...
The best thing to do with a lead acid backup battery is to keep it fully charged. Storage at full charge is however the WORST thing you can do with an LFP.
My 1986 Blake's are badly pitted but Blake's own seacock grease is so thick and glutinous, it compensates for the pits. I've never had a problem and I don't expect to change them.