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-   -   LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks (https://www.cruisersforum.com/forums/f166/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069.html)

mcarling 19-12-2012 09:01

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by typhoon (Post 1110715)
Well, I have been looking for the right combination for my application. What do you guys think of this setup. ????

Balqon - Advanced Transportation Solution

Might be the way to go , already wired and boxed , and the right amount of amp hours for me .

The batteries inside that box are available from Balqon on clearance for $462 each, so you could save about $800 by doing without their nice box.
Balqon - Advanced Transportation Solution

Cotemar 19-12-2012 09:24

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by mcarling (Post 1110719)
The batteries inside that box are available from Balqon on clearance for $462 each, so you could save about $800 by doing without their nice box.
Balqon - Advanced Transportation Solution

Sounds great. I just do not understand the

Weight:412 lbs +/-3 lbs for a 700ah bank

mcarling 19-12-2012 09:26

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by Cotemar (Post 1110743)
Sounds great. I just do not understand the

Weight:412 lbs +/-3 lbs for a 700ah bank

It appears to be a typo. The same weight is listed for the 1000AH box, which makes sense in that case. For 700AH, it makes no sense. I think they copy and pasted and then forgot to edit the weight.

Cotemar 19-12-2012 09:36

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
I looked at it also, but after seeing the weight I stopped.
What do you think the weight is for that 700ah bank?

mcarling 19-12-2012 09:38

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
The 700AH batteries are 21kg each. 84kg is 185 lbs.

ColdEH 19-12-2012 09:55

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
I thought the weight was a little strange as well.

What do they mean by " Battery Management System: Individual cell balancing (temperature, voltage), CAN BUS output "

???

Regards

ColdEH 19-12-2012 09:57

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Also I wonder if they have new cells in them or ones that have been sitting around for a couple of years ?

Regards

mcarling 19-12-2012 10:04

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by typhoon (Post 1110776)
What do they mean by " Battery Management System: Individual cell balancing (temperature, voltage), CAN BUS output "

CAN bus - Wikipedia, the free encyclopedia

ColdEH 19-12-2012 10:21

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Guess its not much use in a boat .

Regards

mcarling 19-12-2012 10:25

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
I agree. CAN bus is probably not of much use in a boat. In theory, if manufacturers of boat electrics (batteries, inverters, gensets, alternators, solar panels, DC-DC converters, etc. were to start incorporating CAN bus support, then we might be able to do something interesting with it, such as optimally switching on and off a genset. However, I don't expect ever to see CAN bus adopted for boating.

ColdEH 19-12-2012 10:28

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
800 bucks for a interface im not going to use and a nice box. Ok maybe not . :)

Regards

ColdEH 19-12-2012 10:32

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Looks like they have great prices on there clearance cells. I wonder if they are just old stock and if they would have the same cycle life expectancy ??

Regards

ColdEH 19-12-2012 10:35

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Ok I read back and answered my previous question .

Regards

mrm 19-12-2012 11:05

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by mcarling (Post 1110797)
I agree. CAN bus is probably not of much use in a boat. [...] However, I don't expect ever to see CAN bus adopted for boating.

Ummm, the last time I checked, NMEA 2000 was CAN bus based, and it seems to be in quite widespread use on boats ;-) Volvo Penta seem to be providing CAN interfaces on their engines...

In the context of this thread, some smart chargers already have CAN bus interface too.

mcarling 19-12-2012 11:11

Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks
 
Quote:

Originally Posted by mrm (Post 1110823)
NMEA 2000 was CAN bus based....

Thanks! I learned something.


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