The original Edison cells lasted a long time.
check out this site http://legacy.veva.ca/home/index.php
The original Nickel-Iron batteries were replaced in the late 1990s because the cases were deteriorated - but they still worked fine!
From: "Jeff LaCoursiere jeff@jeff.net [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, January 27, 2015 2:51 PM
Subject: Re: [Electric Boats] Charging batteries in series?
Wow, this *is* interesting. I'm looking at the spec sheet for the 300Ah cell at 1.2v. So for 48v I would need 40 of them, and at 23.1 lbs per cell, that is close to 900lbs of battery :) Using their pricing page it looks like that pack would cost $11,400.
Has anyone used these for EV applications yet? I do love the idea that you can abuse the crap out of them. They claim 11,000 cycles.
j
On 01/27/2015 03:10 PM, 'Jerry Barth' shredderf16@sbcglobal.net [electricboats] wrote:
These guys just started making them in the good old USA . I looked at them in reference to an off the grid solar system for a vacation house I'm building. I agree probably too heavy for boats but great for something like a house where weight is no factor.Jerry Barth
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com]
Sent: Tuesday, January 27, 2015 2:14 PM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] Charging batteries in series?
I looked into Nickel Iron. No US manufacturers because of patent issues, but they have other issues. They bleed off with no connected load, their charge per weight is much lower than LiPO, and how do you find a charger that works well with them? I loved the idea, and even thought it would be cool to make a bolt on keel that was basically a giant Nickel Iron battery. Imagine filling the electrolyte (which is lye I think?) through a plugged hole in the bilge :)
j
On 01/27/2015 02:00 PM, Mark F mark.internet@yahoo.ca [electricboats] wrote:""If I wanted to argue best system I would throw out the idea
of BMS and buy Nickel Iron batteries. After all the money on electronics and
LiPo of any form Nickel Iron looks much better price wise, and cycle life
looks unbeatable even if you abuse them""I have used NIMH without a BMS and they seem to work quite well too.Unfortunately there are no large size NIMH batteries available because of patent issues.Mark
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Posted by: Mark F <mark.internet@yahoo.ca>
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