Re: [bolger] Re: batteries, series vs parallel
A couple of pict at www.carr.org/~clydewis
brucehallman wrote:
brucehallman wrote:
> --- In bolger@y..., "Clyde S. Wisner" <clydewis@c...> wrote:
>
> >(I have a Lily)
>
> You have a Lily, cool! Any pictures available?
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - pls take "personals" off-list, stay on topic, and punctuate
> - add your comments at the TOP and SIGN your posts, snip all you like
> - To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
--- In bolger@y..., "Clyde S. Wisner" <clydewis@c...> wrote:
seem to find 118 AH batteries in their product list at URL:
http://www.trojan-battery.com/products_batterypicker.html
> PCB uses 118 amp hr Trojan batteries.Could it be that these have been discontinued by Trojan? I can't
seem to find 118 AH batteries in their product list at URL:
http://www.trojan-battery.com/products_batterypicker.html
>(I have a Lily)You have a Lily, cool! Any pictures available?
PCB uses 118 amp hr Trojan batteries. Six batteries are connect in banks of two, via rotary switch.
The three banks are parrallel connected and feed into a diode, providing many amp hrs at 24 volts.
The rotary switch on each bank allows you to separate the two for charging, and keeps one from
draining the other and also, of course, breaks the hot line and turns off the power to the diode. He
( really Susanne I think) uses 6 indivual chargers, I used 3 doubles (I have a Lily) as they cost
less.
I might add; there's also a 45 amp circuit breaker between the diode and the motor, which saved me
once when I had a loose connection to the motor. Clyde
brucehallman wrote:
The three banks are parrallel connected and feed into a diode, providing many amp hrs at 24 volts.
The rotary switch on each bank allows you to separate the two for charging, and keeps one from
draining the other and also, of course, breaks the hot line and turns off the power to the diode. He
( really Susanne I think) uses 6 indivual chargers, I used 3 doubles (I have a Lily) as they cost
less.
I might add; there's also a 45 amp circuit breaker between the diode and the motor, which saved me
once when I had a loose connection to the motor. Clyde
brucehallman wrote:
> > In their MAIB write-up on the electric launch Lily...
>
> I *really* would like to re-read that article! I recall that PCB&F
> wrote in detail about designing a bank of batteries and that they
> were selling a videotape about making Lily.
>
> One thing I recall is that it is critical to isolate the batteries
> from each other with a "diode", aka "a battery isolator", otherwise
> even the smallest difference between batteries will cause one to flow
> backwards into the other and for them to charge unevenly.
>
> Does anybody know what type of batteries were used in Lily???
>
> Does anybody know PCB's opinion on "Gel" batteries?
>
> There is a lot on the internet about battery banks in conjunction
> with the photovoltaic solar energy groups. Commonly used in RV's and
> in "off-grid" homes.
>
> Phred's Poop Sheet on batteries is excellent at URL:
>http://www.phrannie.org/battery.html
>
> I have found the electrical primer by SurePower at URL:
>http://www.surepower.com/pdfs/intro%20book.pdf
> and URl:http://www.surepower.com/
> very helpful to understand the need for battery isolation.
>
> William Darden maintains a huge "battery links" page at
>http://www.uuhome.de/william.darden/batlinks.htm
>
> Bruce Hallman
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - pls take "personals" off-list, stay on topic, and punctuate
> - add your comments at the TOP and SIGN your posts, snip all you like
> - To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
> In their MAIB write-up on the electric launch Lily...I *really* would like to re-read that article! I recall that PCB&F
wrote in detail about designing a bank of batteries and that they
were selling a videotape about making Lily.
One thing I recall is that it is critical to isolate the batteries
from each other with a "diode", aka "a battery isolator", otherwise
even the smallest difference between batteries will cause one to flow
backwards into the other and for them to charge unevenly.
Does anybody know what type of batteries were used in Lily???
Does anybody know PCB's opinion on "Gel" batteries?
There is a lot on the internet about battery banks in conjunction
with the photovoltaic solar energy groups. Commonly used in RV's and
in "off-grid" homes.
Phred's Poop Sheet on batteries is excellent at URL:
http://www.phrannie.org/battery.html
I have found the electrical primer by SurePower at URL:
http://www.surepower.com/pdfs/intro%20book.pdf
and URl:http://www.surepower.com/
very helpful to understand the need for battery isolation.
William Darden maintains a huge "battery links" page at
http://www.uuhome.de/william.darden/batlinks.htm
Bruce Hallman
In their MAIB write-up on the electric launch Lily, PCB and SA
included a lot of useful information about the choices in batteries
and various ways to hook them up to get the desired final voltage. It
is possible to get some unexpected bad results of the charge in one
batter is higher than in another and there are no diodes to prevent
current from flowing in the undesireable direction.
If you fax PCB&F, they may be willing to fax you the Lily writeup.
Otherwise, someone here may be able to scan the MAIB article and send
it to you.
PHV
included a lot of useful information about the choices in batteries
and various ways to hook them up to get the desired final voltage. It
is possible to get some unexpected bad results of the charge in one
batter is higher than in another and there are no diodes to prevent
current from flowing in the undesireable direction.
If you fax PCB&F, they may be willing to fax you the Lily writeup.
Otherwise, someone here may be able to scan the MAIB article and send
it to you.
PHV
I have used batteries both ways.
Either way works just fine.
Here is a tip for you never use
2 batteries of differnt age or
differnt amp.
If you use a new with an old they
will both be junk very soon.
WILLO
Either way works just fine.
Here is a tip for you never use
2 batteries of differnt age or
differnt amp.
If you use a new with an old they
will both be junk very soon.
WILLO