On Aug 21, 2020, at 17:27, jfsquires33@gmail.com [electricboats] <electricboats@yahoogroups.com> wrote:
Well said!! And with the current situation in China, the chances are that the company that you purchased from will no longer be in business. I have also noted that recently the shipping charges from China have really increased.
From: electricboats@yahoogroups.com <electricboats@yahoogroups.com>
Sent: Friday, August 21, 2020 12:42 PM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] LiFePO4 Battery Pack
As some others have pointed out here before too, consider the difficulty of return shipping if sourcing batteries from abroad.
Yes the stateside companies mostly also get their cells abroad, but they do so in large quantities and can provide local support and warranty and if you have to return something you aren't stuck having to ship it back across the ocean..
If you can afford to sit on enough money (at least 2x purchase price) to purchase a replacement while you wait on a return, then you can possibly buy from alibaba etc and take the risk. If the money is a stretch, you probably don't want to risk it if something shows up and doesn't work.
On Aug 21, 2020, at 12:24, Joseph Dacorta jdacorta@earthlink.net [electricboats] <electricboats@yahoogroups.com> wrote:
After going through a similar exhausting search for reserve bank for twin Torq 2.0R on a 37' Herreshoff sharpie, Battleborn seemed the least worst option in terms of price, quality and warrantee. I haven't placed the order yet. .
On Aug 21, 2020, at 3:11 PM, forums@greensdomain.com [electricboats] <electricboats@yahoogroups.com> wrote:
I looked at them back in April, but was scared away by the price. They are almost double what the other company wanted. Yes, they are USA located, but like the other company, the cells are not USA made. But, of course, the other company couldn't deliver. What good is a good price if they can't deliver. I will certainly consider Battle Born now.
Thanks,
Pat
From: electricboats@yahoogroups.com <electricboats@yahoogroups.com>
Sent: Friday, August 21, 2020 2:10 PM
To: electricboats@yahoogroups.com
Subject: RE: [Electric Boats] LiFePO4 Battery Pack
The best LiFePo4 drop in replacement for AGM lead batteries is Battle Born. They are USA located, 10 year warranty, and built in BMS. They all you would need is a battery monitor for LiFePo4 chemistry. Victron has a very nice one that monitors charge in and discharge out.
From: electricboats@yahoogroups.com <electricboats@yahoogroups.com>
Sent: Friday, August 21, 2020 9:27 AM
To: oak oak_box@yahoo.com [electricboats] <electricboats@yahoogroups.com>
Subject: Re: [Electric Boats] LiFePO4 Battery Pack
If your handy can make your own
Ant bms will send all data to your phone
On Friday, August 21, 2020, 10:22:42 AM PDT, oak oak_box@yahoo.com [electricboats] <electricboats@yahoogroups..com> wrote:
Pat,
My Torqeedo 4R has a voltage reading on the throttle display.
It's crude - but that is actually not a terribly bad indication of how much you have left..
You need to know what the lower voltage level is that you're comfortable taking your batteries to.
Then you need to do a couple of runs to see how long it takes at a constant wattage to get there.
Good luck finding a good source for a 48V bank. I've been experimenting with ebike battery sets - but they're only up to 50AHr max, and aren't intended to put out the high wattage that you could use with your Torqeedo 4.0R (up to 4000W - which is about 85A at 48V. The ebike batteries aren't intended to provide more than 30-50A in short bursts). For my small 13' boat, I can manage with that, and it's a really nice, affordable package. For your 24' Pontoon boat, you really probably do want a full 100A pack. Though you could consider an ebike pack as an emergency limp home backup.
John
On Friday, August 21, 2020, 12:12:08 PM CDT, forums@greensdomain.com [electricboats] <electricboats@yahoogroups.com> wrote:
Hello Everyone,
Posted by: Ryan Sweet <ryan@ryansweet.org>
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