开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
Re: Cells (modules) are dying.
As mentioned above, your BMS is not functioning properly if it let you drive any cells lower than 2.5v. also, and sorry if this is dumb, but you never mention charging voltages. It almost sounds like
By Anton · #32755 ·
Re: Cells (modules) are dying.
Thanks for this. After my initial post and comments from members I decided to break down the 16 cells into groups of 4, charge them with a Victron 12v charger to 3.5 volts and then put them all back
By Peter Knowlton · #32754 ·
Re: Cells (modules) are dying.
I have a JK BMS on the 48v motor bank, 24v house bank, and 12v outboard electric motor bank. Both the 12v and 24v work fine and I don't use them for balancing. I inadvertently killed the JK BMS on the
By Peter Knowlton · #32753 ·
Re: Cells (modules) are dying.
I agree with your general opinion of Daly products, and I usually avoid them like the plague. But I did find a few reviews that said the smart balancer worked on the larger cells. I was skeptical,
By gsxbearman · #32752 ·
Re: Cells (modules) are dying.
While all "DIY" style BMS's have issues, I highly recommend staying away from Daly. The parameters they use for balancing are such that a typical pack will likely never get balanced. That's just the
By Matt Foley · #32751 ·
Re: Cells (modules) are dying.
Peter OK, first, your BMS is not doing its job. The primary job of a BMS is to disconnect the battery if any of the individual cells go lower or higher than what the settings are, and / or the cells
By gsxbearman · #32750 ·
Re: Cells seem to have stopped increasing voltage when balancing
First, do not charge the cells to 3.7, especially at that low rate. Stop at 3.55 or 3.6 at most. Second, the math is the math. As others have pointed out, if you parallel all the cells,
Re: Electric motor size for 48' cat
there is a relatively new youtube channel called Fantasia Sailing (from Australia) that shows him running and comparing his cat with one diesel and one electric motor. He does speed and power tests
By gsxbearman · #32748 ·
Re: Cells seem to have stopped increasing voltage when balancing
Peter By now I’m sure you have got your batteries charged but I will try to explain for others to maybe learn from. For a battery to charge, the charger voltage must be higher than the battery
By gsxbearman · #32747 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
Riding style will depend on who’s riding. ?Older people will most likely be more steady. ?Younger will be more erratic I would guess. ?Not going to let anyone be wild though! ?I will assume a
By John · #32746 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
Hi, John How will your sailing style be ?Accelerating/decelerating all the time (young and wild rider),?or a short startup and then cruising rest of the time ? Most power goes from 0 to
By Carsten · #32745 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
LiFePO4 (Lithium Iron Phosphate) is the same as LFP (Lithium Ferrophosphate): https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery I'm using 180Wh/Kg to arrive at ~250lbs.? That's the best
By bobkart · #32744 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
Thanks. ?Have seen that video and you are correct, would be way underpowered (is also very nice but very expensive).
By John · #32743 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
Was planning on using LiFePO4 (assume same as LFP?) as I am reading they are supposed to be the safest. ?By eliminating the gas power head and gas tank I save maybe 112lbs. ?With the new motor, etc.
By John · #32742 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
I don’t think this setup will have near enough power for you, but it’s an interesting study of converting a gas outboard to electric: Converting a Gas Outboard to Electric Made
By steve sawtelle · #32741 ·
Re: Configuration for converting 1963 Mercury outboard to electric?
Let's assume 24hp is good for 'cruising speed'? That's 18kW at the prop, but considering drivetrain losses, let's go with 20kW input.? The real number is probably higher. So 20kWh of battery will
By bobkart · #32740 ·
Configuration for converting 1963 Mercury outboard to electric?
I’m in the process of building a combination hydroplane/jetski (1988 Popular Mechanics plans) which calls for a 35 hp outboard maximum. ?I have an old outboard which needs work so I thought I’d
By John · #32739 ·
Re: I just bought a battery capacity/load tester
Peter, I send you a longer reply directly. ?Don't know why you can't find me, 'cause I've been mostly lurking here for years. My short answer is that the little, inexpensive device will work, even
By THOMAS VANDERMEULEN · #32738 ·
Re: I just bought a battery capacity/load tester
Hi Thomas,? I absolutely would be very interested in the specifics. Unfortunately, don't know your email address and can't find you in the "Directory". Can you reply with your email address, or, here
By Peter Knowlton · #32737 ·
Re: I just bought a battery capacity/load tester
I bought one of those too, a while back. It will NOT do what I understand you're wanting to do with it.? More specially, it will work, but it will take waaaaay too long per cell. Email me directly if
By THOMAS VANDERMEULEN · #32736 ·