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Mostly TAO BMS units. The std display does audio and visual, and there are 6 relays std, more of you wish. Despite the name, its a European company with a French electronics engineer designer/owner who is a sailor - currently in NZ, on his boat called Tao. They currently have restricted supply though....

What BMS are you installing with those cells to provide audible and visual alarms?

Actually those anderson connectors are not that great for LifePo4. Think about this - only 2 of the 18650 cells (3,2v, look like torch batteries) that are in most of the drop ins, shorted, can produce 75a! Short out one 100a/hr LifePo4 battery can produce up to about 20,000 amps. This will blow a fuse of course, BUT, unless it's a class T fuse, it will then arc across the terminals and current will still flow.... So, proper install needs Class T fuse - for each battery - and battery isolation switches. To meet the NZ regs you need a system that gives visual and audio alarms before it shuts off

For what its worth the Inspector who issued the AC compliance cert for the land yacht said the requirements for lithium battery installations were a moving feast. (slightly paraphrasing) In the time between the initial and final sign off there was some new requirement added . Even if you don't have shore power you can still get yourself into a power of expensive trouble if you don't do your homework, as IT says there is no such thing as a drop installation with Lithium. The nuclear option for batt disconnect is an 175A Anderson connector which we installed along with the BMS smarts https://w

So. I just watched a highlights package of the final. Who thinks Phil R went out the boundary on.purpose to make sure he could lay the red pole? He's a very cunning guy. If was intentional it worked a treat.

Still not on YT. They restrict it regionally to force you to get Sky (or not).

Also doesn't seem to align with ABYC E13, which is somewhat open ended, but at least ratified which we seem to try an avoid. Does AUS/NZS 3004 2004 even acknowledge the range of Lithium ion batteries and where LiFePo4 sits in terms of risk? Isn't there a 2014 version at least. It will be only one decade behind. https://panbo.com/abyc-ratifies-e-13-their-first-lithium-battery-standard/ I can't see Burnsco stocking LiFePo4 (with bmss) and tagging that contradictory non-sense to it on purpose, 'cept they have it appears. Agreed CD, I checked 4mnths ago.

As far as I know the standard isn't a requirement. A/ there's no legislation mandating it; and B/ insurance companies don't require compliance Someone please correct me if I am wrong?

Not suitable for boats connected to shore power and needing an Electrical Warrant of Fitness as the AUS/NZS 3004.2:2004 standard need the battery to be able to disconnect from all charging sources. Most decent BMS's will do a HV, LV, Temp, current, SOC disconnect of charge/ load bus to parameters set, so don't understand above statement. Plus other things like balancing. Coupled with a Victron BMV you can set audible alarms lower than bms and or use the relay function to open a contactor. Very confusing. Not all of us can afford/need/justify fully automated systems with separ

The racing was great, fast and exciting, I thought this is far and away better than the Americas cup. far more tactical I didn’t realise until afterwards, I think we will be back for Auckland and maybe in the stand for the next Lyttleton event.

+1 for every point Matt and Bad Kitty made, that has been our experience with the land yacht. The four areas where the lithium scores heavily for us are *Low Bulk *Less Weight *Fast Charging because of low internal resistance *Available Capacity being 80% of total. The last two points are the main event for us because even with Microwave, electric kettle and Induction hob plus lights and so on we still haven't pulled it below 75% of capacity and its never charged from the engine, only solar. I'm pondering what to do with the excess energy , maybe a water heate

I only watched Saturday though- I have just heard it wasn’t on YT Sunday which if true is very weird.

The other thing to consider is that the battery cost is not the biggest part. Well for us it wasn't anyway. I think the 2 x 200 a/hr li ion batteries were about 9K, total bill with bigger alternators to make use of the faster charging capacity, fuses, contactors, alternator drive kits bla bla bla was more like 20K maybe? I'd still do it again in a heartbeat, but make sure you've got your numbers right?

I’ve watched every round, including Lyttelton, on YouTube- no adverts, full (slightly annoying) commentary but easy to watch.

Changes boating life. Power is an issue on a lot of boats, and it takes a whole lot of that angst away. For cats, weight is an issue always, less weight, more usable power, faster charging. As for what flavour, I've read about enough issues that I probably wouldn't use anything other than the name brands that are fully integrated systems, unless you're a way better electrical guru than me. We've got Juice/Enertec in the yacht, the camper van is Mastervolt because that's who the builder uses, and that's probably as adventurous as I'd get. When these things go bad it's never a small in

I guess that's one way to look at it (the 40 each day bit) In reality it was a fantastic weekend, the racing was bloody amazing, and the race start at 3pm it made for a really relaxed fun time. Brunch in ChCh in the morning, wander down to the shuttle at about 1, cruise over to Lyttleton & pick up a glass of bubbles to prep for race 1! Racing over about 4.30, chat to a few yachties over a drink & back on the shuttle. Couldn't be easier. Watching 9 boats piling into the start was pretty interesting, & then the finish line was about 100 metres from the grandstand, and the boats

Totally agree was a great couple of days racing, venue fantastic, had my doubts they could pull it off in Lyttelton but it worked well.

AC, what AC?

Was free to air on TV3. Can’t find it on their app though.

Thanks IT. Did you feel there was enough racing? I've always wondered what it'd be like with only 3 v short races a day.

Sounds great. Not having skytv available its been a blank from.my perspective. I normally watch every race but it's not on YouTube for nz. I'm keen to know how Lyttleton worked out as there was a restriction on numbers. Not sure if getting down there from NI would be worth 40 minutes racing each day?

Make your own decisions. Dont try to clear in on the weekend.

for me the biggest benefit is the fast charging. No more hours and hours to get to full...

Yeah, better than the AC!

Just got back from SailGP in ChCh, damn that was awesome racing! Well organised, course was so close to the grandstand, and watching a few of those 50's smoking into the finish is impressive! Best yacht racing I've ever seen.