T-Pain Is On A Boat: Re: [Electric Boats] Re: New file uploaded to electricboats

Wednesday, December 23, 2009

Re: [Electric Boats] Re: New file uploaded to electricboats

Good luck Skip, I installed an electric yacht in my Ericson 27 and I am completely satisfied with the performance. I have heard that Trojan batteries are strong performers, but eight years is really great endurance.

Don Swanson

On Wed, 23 Dec 2009 21:16:57 -0500 Skip von Niederinghausen <farharbour@gmail.com> writes:

My beach house is on an island off the coast of Connecticut, and I only have solar power for lighting TV and refrigeration.My power is stored in Trojan T105 batteries. During the rainy New England summers, I have flattened my batteries completely on several occasions each summer and they still seem to come back. My system equalizes the cells every three weeks and although I bought the battery bank in 2001, they are still going strong , well past there 5-7 year life expectancy. I would imagine that a battery bank that rests and is fully charged and trickle charged all week would last. That said I am putting an AGM bank in my 34' Moody . I already have the electricyacht 260i system to intall.

Skip

On Wed, Dec 23, 2009 at 8:45 PM, Eric <ewdysar@yahoo.com> wrote:

Hardy,

My take away from that document is that every 100% DOD cycle reduces your battery's life by 0.28% compared to 0.1% for a 50% DOD cycle. While the total stored energy delivered is only reduced by 30% if one consistently uses a 100% DOD, the number of available charging cycles is reduced by more than 60%.

But this does show that a single complete discharge will not "kill" your battery bank. Something that is not covered in this document is the importance of recharging the battery bank as soon as possible, leaving the batteries completely discharged continues to reduce the battery's ability to store energy, reducing its lifespan further.

Fair winds,
Eric

--- In electricboats@yahoogroups.com, electricboats@yahoogroups.com wrote:
>
>
> Hello,
>
> This email message is a notification to let you know that
> a file has been uploaded to the Files area of the electricboats
> group.
>
> File : /batteryLIFE.JPG
> Uploaded by : hardy71uk <p0054107@...>
> Description : typical lead acid life times showing the effect of heavy DOD is not as great as often stated
>
> You can access this file at the URL:
> http://groups.yahoo.com/group/electricboats/files/batteryLIFE.JPG
>
> To learn more about file sharing for your group, please visit:
> http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles
>
> Regards,
>
> hardy71uk <p0054107@...>
>