|
|
Post by Jim on Oct 30, 2016 13:19:39 GMT
Just come across NiFe batteries "The Edison Nickel Iron Cell - NiFe Outlasts Lead Acid by Decades! Lasting Energy Storage - Can last upto 40 years Invented over 100 years ago by Thomas Edison as a non-polluting and non-consumable alternative to Lead Acid Batteries using no heavy metals! Now manufactured once again worldwide after lead acid battery companies closed Edison's Plant in 1972." Copied from bimble solar www.bimblesolar.com/batteries/nifebatteriesDiscuss! |
|
|
|
Post by JohnV on Oct 30, 2016 13:26:37 GMT
Inefficient, heavy, high self discharge, expensive ....... versus, almost impossible to destroy by bad treatment, drain and refill every few years with new (cheap) electrolyte, last for ages (I read a few years ago that some of the cells manufactured by Edison in the dark ages were still working 80 years after manufacture)
|
|
|
|
Post by tonyqj on Oct 30, 2016 13:28:43 GMT
Hugely expensive (don't know why, probably scale of production) but should outlive you. Does the cost/benefit analysis work? Dunno.
|
|
|
|
Post by Graham on Oct 30, 2016 13:41:18 GMT
Hugely expensive (don't know why, probably scale of production) but should outlive you. Does the cost/benefit analysis work? Dunno. Yes it does I was considering them for Clarence until I have to sell her. |
|
|
|
Post by tonyqj on Oct 30, 2016 13:51:28 GMT
Hugely expensive (don't know why, probably scale of production) but should outlive you. Does the cost/benefit analysis work? Dunno. Yes it does I was considering them for Clarence until I have to sell her. What would the break-even time be for say a 600Ah bank? |
|
|
|
Post by cuthound on Oct 30, 2016 13:52:40 GMT
When we had trolley buses there was a reliable supply of second hand ones, sadly no longer the case.
NiCad's areally a viable (but not very green) alternative to lead acids, which will take a other of abuse for a long period of time.
|
|
|
|
Post by Graham on Oct 30, 2016 13:59:53 GMT
Yes it does I was considering them for Clarence until I have to sell her. What would the break-even time be for say a 600Ah bank? i'll let you work it out the figures are all available |
|
|
|
Post by tonyqj on Oct 30, 2016 14:06:38 GMT
What would the break-even time be for say a 600Ah bank? i'll let you work it out the figures are all available Oh my... what's the point of posting in a discussion forum when contributors won't discuss? Last time I looked the cost/benefit period was about 40 years. I thought you might have some more up to date figures. It's ok that you don't know though. |
|
|
|
Post by Graham on Oct 30, 2016 14:21:48 GMT
i'll let you work it out the figures are all available Oh my... what's the point of posting in a discussion forum when contributors won't discuss? Last time I looked the cost/benefit period was about 40 years. I thought you might have some more up to date figures. It's ok that you don't know though. Considerably less than that. I just can't be bothered to pull the file from upstairs for you, knowing you I would not dare give figures from my head. |
|
|
|
Post by Gone on Oct 30, 2016 14:29:01 GMT
Cost benefit analysis - no general answer.
If you are a leisure boater with solar and you can make a set of batteries last 7 years then the benefits will be minimal and payback difficult to justify. But as a liveaboard without shore power such that you destroy a set of batteries every winter and struggle to keep the lights on then there are some big benefits as well as it being cost effective.
|
|
|
|
Post by tonyqj on Oct 30, 2016 14:31:17 GMT
Cost benefit analysis - no general answer. If you are a leisure boater with solar and you can make a set of batteries last 7 years then the benefits will be minimal and payback difficult to justify. But as a liveaboard without shore power such that you destroy a set of batteries every winter and struggle to keep the lights on then there are some big benefits as well as it being cost effective. Thanks for the helpful answer Chewy 😀 |
|
|
|
Post by Graham on Oct 30, 2016 14:37:50 GMT
Cost benefit analysis - no general answer. If you are a leisure boater with solar and you can make a set of batteries last 7 years then the benefits will be minimal and payback difficult to justify. But as a liveaboard without shore power such that you destroy a set of batteries every winter and struggle to keep the lights on then there are some big benefits as well as it being cost effective. I don't see a benefit for leisure. There can be a great benefit for both electric boats which is what I was looking at and of course liveaboards can benefit considerably. I was looking at 48V 2kAh with a 100A diesel charger with 14 kW Lynch motor, which sits in my garage now. |
|
|
|
Post by kris on Oct 30, 2016 16:34:05 GMT
As has already been discussed on here Nifes have the disadvantage of charging at a different voltage to lead acid batteries.
|
|
|
|
Post by tonyqj on Oct 30, 2016 16:54:11 GMT
As has already been discussed on here Nifes have the disadvantage of charging at a different voltage to lead acid batteries. Last I looked they were saying around 17V for a 12V bank - that sound about right? |
|
|
|
Post by kris on Oct 30, 2016 16:55:50 GMT
I can never remember off the top of my head, but I'll say yes.
|
|
