CarpeDiem

Does anyone have a SWR meter for marine vhf I could borrow? I recently replaced the mast wiring and I feel my vhf performance is degraded.

https://forecast.predictwind.com/tracking/race/SSANZ

I can't see a plate in the fridge? I assume that's the freezer with the plates in it? Do you have fans cooling the fridge from the centre holdover plate?

How is your fridge cooled?

Available at public libraries - check out the catalog. There's actually sfa to the Lithium install rules and its content has already been posted in this forum pretty much verbatim.

Spinlock have a model with quick release built in. Pull the rip cord and the tether point detaches. https://www.spinlock.co.uk/en-GB/uk/articles/ontwikkeling-van-het-harness-release-system-hrs

It's not really measurable by us mere mortals. You'd need calibrated laboratory grade equipment to be able to measure the actual power used. The issue is the sampling rate across the shunt resistor. It simply can't read the voltages fast enough to account for the coulombs used during the inrush phase. I have been running our anchor winch off the Lithium-ion, (through the MOSFET BMS), for a long time now with no problems. It's a 1000W/124A motor per the Maxwell label. I observe the shunt meter reading at around 120A, but that's just spinning the winch in the marina with no weight

Enertec Marine has had solid state lithium-ion for a few months now. They no longer market or sell the liquid electrolyte lfp batteries in favor of the new technology. I can't find a source for the cells to DiY But I believe they are only available in pouches. https://enertecmarine.co.nz/product-category/batteries/lithium-ion-solid-state/lithium-ion-marine/

What kind of regulator do you have? You need one that can support tail current charge termination at the Li - otherwise you'll be guessing and that will lead to either overcharge or undercharge which will depend on house loads at the time.

This is feeling kind of circular... LiFePO4 (LFP) is a lithium-ion battery. It has a cathode material that makes it more stable and less prone to overheating or fire compared to other lithium-ion chemistries, like NMC or NCA. Misconceptions arise when people treat "lithium-ion" as synonymous with less stable chemistries, like NMC or LCO, which have been linked to high-profile incidents (e.g., smartphone or EV fires). LiFePO4’s robust safety profile—owing to its lower energy density and higher thermal stability—leads some to mistakenly believe it’s a separate technology. Bu

Late last year. I first saw one installed in a fizz boat in November.

LiFePO4 are Lithium-ion batteries. What makes a Lithium-Ion battery a Lithium-Ion battery, is that lithium ions move from the cathode to the anode during discharge, and vice versa during charging. Saying that LiFePO4 is OK, but Lithium-ion is not OK, makes no sense. Yes, LiFePO4 is a safer chemistry, but it isn't the safest Li-ion chemistry, not by a long shot. 99.99% of LiFePO4 batteries on the market have a liquid electrolyte, this electrolyte is highly flammable and explosive. If you want to stick with LFP and would like to be an order of magnitude safer, than everyone

The issue is that the cited standard doesn't mention the fire rating requirements of a Li-ion battery enclosure. Just because it's not mentioned doesn't eliminate common sense. If you made your battery compartment out of something that burst into flames at 30degC you would still meet the standard but you'd be pretty stupid! So we therefore turn to other standards that do mention it - e.g., the one which covers the installation of Lithium-ion batteries in RV's and Motorhomes, or the one which covers the installation of Lithium-ion batteries in your house... these standards can be use

AS/NZS 3004.2:2014

The problem is that standard quoted from above isn't the only standard available to us. And the actual complication occurs as there is no legislated installation standard for Li-ion batteries on pleasure craft under 24m in New Zealand. So we end up with organisation's, vendors, forums, electrical inspectors and electricians reaching well intentioned conclusions from the raft of standards and advice available. For instance, when swapping lead acid for Li, Maritime NZ say this: battery cabinets, rooms or enclosures are constructed from a structurally fire-rated, noncomb