[RE-wrenches] Battery capacity testers

[Carl Emerson]

Hi there,

 

I notice Mastervolt have a new range of Li Ion batteries, I know of a 3000Ah
24V bank going into a super yacht.

 

Is this not a battery technology worthy of consideration as well?

 

Each cell block has built in electronic regulation for individual cells.

 

They boast of high efficiency, deep discharge, light weight and long life.

 

Carl Emerson

Web   www.freepower.co.nz

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
toddcory at finestplanet.com
Sent: 5 October 2010 9:29 a.m.
To: RE-wrenches
Subject: Re: [RE-wrenches] Battery capacity testers

 

Lead cadmium or lead calcium? Again, I do not have the cycle chart handy,
but hopefully James can post that. 

Todd

On Monday, October 4, 2010 8:11am, "Mark Frye" <markf at berkeleysolar.com>
said:

Todd,

 

Can you give us a comparison of lead vs lead cadmium?

 

My understanding is that lead cadmium are suited for standby operations such
as telecomm back up.  That means spending most of the time in float, with
occasional short term high discharge rate with very high DOD available.

 

How well do they cross over into a daily-cycle off-grid situation with
moderate daily DOD?

 

Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  

 

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
toddcory at finestplanet.com
Sent: Monday, October 04, 2010 12:23 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Battery capacity testers

I know many on this list disagree, but this sounds SO typical for sealed
batteries. It is why I never use em... never! If they are 5 years old, you
are probably at the limit of their life. Replace em with flooded lead
calciums and your customers (and you) will be happy for 20+ years.

my .o2

Todd


Sent from Finest Planet WebMail.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20101005/1328b721/attachment-0003.html>