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EXCLUSIV: Producătorii de baterii marine își împărtășesc secretele | Pasul 381
Thanks for watching. It was a lot and long, we know. But hopefully useful and a bit educational. So what do you think? Which battery would you install in your boat? Is "waterproof" important to you or not? Which one do you think we'll go with?
I guess there are really battery experts outside who can do a video about these theme.
Your channel has drifted so far away from adventure sailing that I am unsubscribing. Good bye.
I’m not that impressed with a solid state battery that is an empty shell. The specs are nice, but really if they can’t even turn up with a single example to a sales show , when will the actual batteries be available to install in a boat ?
To be on the cutting edge of battery tech, you should string together many of the newest 50 year nuclear batteries that are being hyped in the market today. Then you don't even need re-gen or solar panels, you just put them in and they last 50 years.
(if only this was a real tech, LOL).
I give up as they all look really good?
Im really surprised by the lack of heated batteries here. A lot of 12v non-marine have them.
Great overview! ill wager tt's going to be blue 😊
I was contemplating MG but decided against them because the booklet that comes with them states, astonishingly, that they are not guaranteed. Perhaps the dealers that sell them guarantee them but that would not be good enough for me. That booklet is available on the web.
To much ….. I wild like to see actual work on uma
MG did the best job in sales and assurance. They have their stuff together. I was interested in the “Solid State Batteries” and would like to see outcomes on them.
Interesting video. Thank you.
I once watched a video where a boat had been hit by lightening in the Caribbean. The BMS in the batteries were fried. But the battery cells seemed to be OK. They happened to have some old batteries on hand, and were able to salvage the BMS from the old battery to replace the fried ones, and get their house appliances back up.
Since then I have been very interested in the BMS in batteries and how easily the BMS can be replaced. I noticed some separate BMSs on some of the systems. But no specific questions about lightening strike repair.
Is it recommended to carry a spare BMS or even make some contacts with salvage yards and collect some old BMSs that should work as replacements.
My vote goes to the easiest battery system to maintain. Solid state may be most dependable but also probably most expensive. You usually get what you pay for.
So excited to see the new Solid State tech! We have an R1S SUV and the Electric Tech is exciting. I am loving your rebuild.and cannot wait to see your decision on power company for UMA.
is that powder blue color like the official color of marine battery systems?
Excellent video guy's, that's put to rest a lot of my safety fears
Still shocked that there are so few 48V systems. Come on, 4kw motor and above you need 48V. Anything higher and it is going to become dangerous. And NMC cells are like having a timebomb on board. I would only accept LiFePo4 = LFP batteries on board, like you only have diesel on a sail boat and not gas.
Curious about a full 48V system: 48V refridgerator, washing machine, watermaker, …
So no need for inverters to 115/230V or 12V.
Seems to be a market niche.
Thanks for a very informative video. As the technology advances (and the prices start to become more accessible), I am very much looking forward to 'the big change' aboard my own vessel
For cruising sailboats, having effective re-gen would be game changing. In prior boatshow video you asked but all vendors were pretty dismissive. My impression is the prop is the issue – delivering power and generating power require different specs. Seems solvable, though, maybe adjustable pitch but maybe some sort of dual shaft / dual prop option could work? Have you found anyone working on viable solutions?
@dan ..I watched it all ..following for ….
It’s the first time I commenting one of your films..
I work in the professional, film industry, and I love how you
Work through your interview. It’s so nice of you giving the non-native English speaking, person hints.
Thank you so much for this! The hubby & I have set up two RV vans with electric. One in 2015 with a lot of random parts (there was so little information available then) and another one 3 years ago—mostly Victron (so much easier). Now, we are making plans to upgrade our sailboat. It was super interesting to learn about the specific considerations regarding electric propulsion & the marine environment. Well done! And, compliments to the experts at the booths for being so knowledgeable and fabulous at speaking English.
The BIG question is: for when the UMA II ???
The first ten minutes of this presentation was incomprehensible to me. He gives lots of numbers, but are they model numbers, or specification numbers, or wattages? Or maybe even currents? But since he doesn't say what he is talking about, only somebody fully clued in could possibly understand it!
🥱
cool that you got a Media badge!
I was impressed with EP Technologies. They seem to have their stuff together.
Was very impressed with EBT. Especially the solid state. Good stuff for boats, miles away from anywhere. No doubt costly as hell. You definitely have what they call a small boat, but they know who you are and how much you are watched. Some kind of deal should be made. Just sayin……
You guys are great. Probably the most informative back and forth covering current generation lithium—no matter the application—across the internet.
Wait, EP Technologies has a fire suppression system inside their batteries? How is this not bigger news!?
Thank you Dan and Kika for the great video!
You might have seen an after show but Yamaha just dropped their hydrogen powered outboards and inboard Motors it looked pretty slick if I had a choice I would go with the dry cell
Winston and REC guys. You can’t do better. 16 x 1000ah cells with sub zero performance.
Eve if you really need cheaper, but Winston can’t be beat with an electromechanical Contactor.
Paralleling small cells or several series strings is no fun.
ABYC presidents letter has closed the fire discussion.
Hi, I miss Super-B battery’s in your video. The have a lot experience in yachts and commercial boats also a good choice! Good luck
EV battery manufacturers such as CATL are targeting $50/kWh and the last Boot I went to in 2022 you couldn’t find any “marine” or DMV certified battery manufacturer selling below €700/kWh. Why did you not press them on the elephant in the room?
I know they will say scale is the problem and DNV certification and waterproofing etc etc, but still we need prices to come down!
Mg batteries seem like the best choice of batteries everything talks to each other and it’s water proof and geared for sailing
I think EPT stole the show, and you guys as always nailed it.
Seems to me that aside from EP Technologies, the other vendors are all sleeping at the helm. 24V batteries, and no focus on weight efficiency. It's a sad state of affairs. I'll contact EP for my own replacement battery project.
I’m guessing MG Because they are the partner with Oceanvolt.
Come on, you guys are buying the battery that incorporated Dan's mounting idea, Innopower! Wouldn't you want a mechanical shut off? Love the idea that it is just a 48V battery with a MOSFET BMS. Lines right up with solar charging. Will you be using bi-facials on the back of UMA?
Still too expensive for people with more ambition than funds.
I am really trying to keep an ear to the ground for batteries outside of lithium, sodium-ion specifically. A ways off, I know, but the environmental impact of lithium mining (as well as other minerals needed for these batteries) has me a bit concerned. The demand for lithium and its scarcity is leading people to leveling rainforest in and to considering deep sea mining, which would be truly detrimental for the ocean.
Too bad you can’t delay your purchase a couple of years, it would most likely save you a bundle. The familiar brands offering the smaller units keep lowering their prices and there are some really nice high quality batteries available right now for half of what the name brand folks want. Also, if you want state-of-the-art technology, there are some companies getting closer and closer to offering some amazing stuff. You might gain some valuable insight talking to Nigel Calder. Good luck.
When times change so will batteries 100 percent sure in the future we will be using saltwater batteries instead of lithium or lipo4 batteries because the second you think you got the nicest shoes the kid next door got a nicer pair this is how technology works
Indeed the battery technology has improved and made it possible to use electric propulsion on a boat. For a day sailor who keeps his boat at a marina hooked up the shore power then this is good news.
The charging system remains the issue for a cruiser. You may be able to store a lot of energy into the batteries but you have to replenish that energy that you used during your travel. Wind generators, solar panels and possibly hydro-generators must be used to charge the batteries back up. As most cruiser spend 95% of their time at anchor, regen is not an option. There is a limited space for solar panels on a conventional boat and therefore the charging capacity is very limited. Those who use generators to recharge the batteries, are they really doing a favor to the environment?
What to do? Higher voltage is going to be lower weight and better performance, but higher costs and harder to service. The RV sector seems to lean lower voltage but has a bigger production volume so cost will be lower and repairability will be better, as long as you are mainland accessible. Depends on how much ownership you want to take on. Adds a whole another level to Yanmar vs Volvo for diesel propulsion.
Not a clear answer here as you are still blazing the trail. The engineer in me that has spent time doing battery protection from cell phones to early EV's as well as designing HV stuff for space and particle accelerators can make a solid argument for either. You guys seem way more interested in learning the details so I don't think the HV stuff would be an issue, but if all you want to do is sail and not worry about the underlying tech, then LV would be easier . I am leaning toward a higher voltage system for propulsion and storage, but maintaining an LV system for basic housekeeping for costs.
Great video and some great questions. The cold storage seems to be the Achilles heal, but if you use your boat year round then not an issue. I wish I had the decision to make; you guys are living a dream I had, but always put off .
21:09 EPT also has very cool small azipod-like motors. They call them turnable saildrives.