Comentarii la: EXCLUSIV: Producătorii de baterii marine își împărtășesc secretele | Pasul 381

De: @LoanwordEggcorn

@LoanwordEggcorn — Mon, 04 Mar 2024 11:06:23 +0000

21:09 EPT also has very cool small azipod-like motors. They call them turnable saildrives.

De: @blt_engineer

@blt_engineer — Mon, 04 Mar 2024 05:02:31 +0000

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 .

De: @tartansailor

@tartansailor — Sun, 03 Mar 2024 22:35:34 +0000

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?

De: @grahamwheelock7497

@grahamwheelock7497 — Sun, 03 Mar 2024 21:19:22 +0000

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

De: @tator2345

@tator2345 — Sun, 03 Mar 2024 20:35:00 +0000

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.

De: @phlompalompagus1

@phlompalompagus1 — Sun, 03 Mar 2024 18:11:35 +0000

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.

De: @karelvandervelden8819

@karelvandervelden8819 — Sun, 03 Mar 2024 17:34:32 +0000

Still too expensive for people with more ambition than funds.

De: @nodogrunner

@nodogrunner — Sun, 03 Mar 2024 16:01:05 +0000

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?

De: @Happ465

@Happ465 — Sun, 03 Mar 2024 15:52:29 +0000

I’m guessing MG Because they are the partner with Oceanvolt.

De: @AntoineGrondin

@AntoineGrondin — Sun, 03 Mar 2024 13:32:30 +0000

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.