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I have used an Optima in many of my cars for a few decades, LOVE them. Eve=
n got over 10 years out of more than one. They are a bit heavy but do not n=
eed a case in some racing orgs. I would say go this route. Lithium are nice=
but some orgs do not allow them, and if they do you need special markings =
on the car. Could be a problem if you have a fire and a lithium battery is =
involved, per the FD, a real pita to put out and keep out in rare cases.
Ralph
On Monday, September 16, 2019, 08:07:24 AM CDT, Ponostyle via Fot <fot@=
autox.team.net> wrote: =20
=20
Oops, error: Actually, it=E2=80=99s possible to have a two terminal batter=
y that cuts off charging when a maximum voltage is reached, but to my knowl=
edge none of the batteries available commercially do that.=C2=A0
On Sep 15, 2019, at 9:07 PM, Ponostyle via Fot <fot@autox.team.net> wrote:
If you want to get a seriously good battery then Lithium is the way to go. =
Unfortunately there are several issues that make that decision a little tri=
cky. If the car is going to charge the battery instead of running it total =
loss and charging in the pits, then you have to accept certain limitations =
in the battery=E2=80=94like it might die fairly quickly. Most people don=E2=
=80=99t want to rewire their car to accommodate a lithium battery, so even =
the eye-wateringly expensive (a thousand bucks and up) are designed with a =
simplified BMS system that protects from overcharging by disconnecting the =
battery. If your electric system can live with that, then you might as well=
buy one of the cheaper ones ($150-ish) and see how it goes. The best way t=
o manage a lithium battery is to keep it connected to the car but disable c=
harging when the cells reach about 95% charge, and disconnect the battery e=
ntirely if the cell voltage gets to 20 percent or so. If you do that the ba=
ttery will outlast the car. If you don=E2=80=99t, it might die the first ti=
me you overcharge or completely drain the battery. Any battery with an inte=
rnal BMS and just two terminals can=E2=80=99t just shut off charging.=C2=A0
Lead acid batteries respond to overcharging by going into electrolysis and =
generating oxygen and hydrogen. Nothing terrible happens unless it goes on =
too long without adding water, or you manage to catch the hydrogen/oxygen m=
ixture on fire, in which case it turns back into water and disassembles the=
battery.=C2=A0
Unless you are prepared to build your own battery from a box full of LiFe c=
ells, add your own BMS and control charging I suspect you should get an AGM=
and be happy. Optimas are not all that special.=C2=A0
On Sep 15, 2019, at 8:38 PM, Nick Black via Fot <fot@autox.team.net> wrote:
Its time for some new electrons in the Duke of Oil (TR4A as named by Hardy'=
s wife Ellie) and there should be something better than a heavy ole wetcell=
type. I know some of the Optima batts are popular, but what is the flavour=
du jour? And will it need some sort of special charger?OR
Should I just go get another wetcell type?
Thoughts and considerations?
Outta juice here in NorCalNick_____________________________________________=
__
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
e.com
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
e.com
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
com
=20
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<html><head></head><body><div class=3D"ydp82013c83yahoo-style-wrap" style=
=3D"font-family: Helvetica Neue,Helvetica,Arial,sans-serif; font-size: 13px=
;"></div><div class=3D"ydp82013c83yahoo-style-wrap" style=3D"font-family: H=
elvetica Neue,Helvetica,Arial,sans-serif; font-size: 13px;">
</div><div class=3D"ydp82013c83yahoo-style-wrap" style=3D"font-fami=
ly: Helvetica Neue,Helvetica,Arial,sans-serif; font-size: 13px;" dir=3D"ltr=
" data-setdir=3D"false">I have used an Optima in many of my cars for a few =
decades, LOVE them. Even got over 10 years out of more than one. They are a=
bit heavy but do not need a case in some racing orgs. I would say go this =
route. Lithium are nice but some orgs do not allow them, and if they do you=
need special markings on the car. Could be a problem if you have a fire an=
d a lithium battery is involved, per the FD, a real pita to put out and kee=
p out in rare cases.</div><div class=3D"ydp82013c83yahoo-style-wrap" style=
=3D"font-family: Helvetica Neue,Helvetica,Arial,sans-serif; font-size: 13px=
;" dir=3D"ltr" data-setdir=3D"false"><br></div><div class=3D"ydp82013c83yah=
oo-style-wrap" style=3D"font-family: Helvetica Neue,Helvetica,Arial,sans-se=
rif; font-size: 13px;" dir=3D"ltr" data-setdir=3D"false">Ralph</div><div cl=
ass=3D"ydp82013c83yahoo-style-wrap" style=3D"font-family: Helvetica Neue,He=
lvetica,Arial,sans-serif; font-size: 13px;"><br></div><div class=3D"ydp8201=
3c83yahoo-style-wrap" style=3D"font-family: Helvetica Neue,Helvetica,Arial,=
sans-serif; font-size: 13px;">
=20
</div><div class=3D"ydp1319985ayahoo_quoted" id=3D"ydp1319985ayahoo=
_quoted_9406722869">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
On Monday, September 16, 2019, 08:07:24 AM CDT, Ponosty=
le via Fot <fot@autox.team.net> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"ydp1319985ayiv8142194191"><div></div><div><=
div class=3D"ydp1319985ayiv8142194191"></div></div><div><div class=3D"ydp13=
19985ayiv8142194191">Oops, error: Actually, it=E2=80=99s possible to have a=
two terminal battery that cuts off charging when a maximum voltage is reac=
hed, but to my knowledge none of the batteries available commercially do th=
at. <br class=3D"ydp1319985ayiv8142194191" clear=3D"none"><div class=
=3D"ydp1319985ayiv8142194191yqt5699972327" id=3D"ydp1319985ayiv8142194191yq=
t56290"><div class=3D"ydp1319985ayiv8142194191"><br class=3D"ydp1319985ayiv=
8142194191" clear=3D"none"><blockquote class=3D"ydp1319985ayiv8142194191" t=
ype=3D"cite"><div class=3D"ydp1319985ayiv8142194191">On Sep 15, 2019, at 9:=
07 PM, Ponostyle via Fot <<a class=3D"ydp1319985ayiv8142194191" href=3D"=
mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"nofollow" shape=3D"rect=
">fot@autox.team.net</a>> wrote:</div><br class=3D"ydp1319985ayiv8142194=
191Apple-interchange-newline" clear=3D"none"><div class=3D"ydp1319985ayiv81=
42194191"></div></blockquote></div></div></div></div><div class=3D"ydp13199=
85ayiv8142194191yqt5699972327" id=3D"ydp1319985ayiv8142194191yqt12413"><div=
><div class=3D"ydp1319985ayiv8142194191"></div></div><div><div class=3D"ydp=
1319985ayiv8142194191"></div></div><div><div class=3D"ydp1319985ayiv8142194=
191">If you want to get a seriously good battery then Lithium is the way to=
go. Unfortunately there are several issues that make that decision a littl=
e tricky. If the car is going to charge the battery instead of running it t=
otal loss and charging in the pits, then you have to accept certain limitat=
ions in the battery=E2=80=94like it might die fairly quickly. Most people d=
on=E2=80=99t want to rewire their car to accommodate a lithium battery, so =
even the eye-wateringly expensive (a thousand bucks and up) are designed wi=
th a simplified BMS system that protects from overcharging by disconnecting=
the battery. If your electric system can live with that, then you might as=
well buy one of the cheaper ones ($150-ish) and see how it goes. The best =
way to manage a lithium battery is to keep it connected to the car but disa=
ble charging when the cells reach about 95% charge, and disconnect the batt=
ery entirely if the cell voltage gets to 20 percent or so. If you do that t=
he battery will outlast the car. If you don=E2=80=99t, it might die the fir=
st time you overcharge or completely drain the battery. Any battery with an=
internal BMS and just two terminals can=E2=80=99t just shut off charging.&=
nbsp;<div class=3D"ydp1319985ayiv8142194191"><br class=3D"ydp1319985ayiv814=
2194191" clear=3D"none"><div class=3D"ydp1319985ayiv8142194191">Lead acid b=
atteries respond to overcharging by going into electrolysis and generating =
oxygen and hydrogen. Nothing terrible happens unless it goes on too long wi=
thout adding water, or you manage to catch the hydrogen/oxygen mixture on f=
ire, in which case it turns back into water and disassembles the battery.&n=
bsp;<br class=3D"ydp1319985ayiv8142194191" clear=3D"none"><div class=3D"ydp=
1319985ayiv8142194191"><br class=3D"ydp1319985ayiv8142194191" clear=3D"none=
"></div><div class=3D"ydp1319985ayiv8142194191">Unless you are prepared to =
build your own battery from a box full of LiFe cells, add your own BMS and =
control charging I suspect you should get an AGM and be happy. Optimas are =
not all that special. <br class=3D"ydp1319985ayiv8142194191" clear=3D"=
none"><div class=3D"ydp1319985ayiv8142194191"><br class=3D"ydp1319985ayiv81=
42194191" clear=3D"none"><blockquote class=3D"ydp1319985ayiv8142194191" typ=
e=3D"cite"><div class=3D"ydp1319985ayiv8142194191">On Sep 15, 2019, at 8:38=
PM, Nick Black via Fot <<a class=3D"ydp1319985ayiv8142194191" href=3D"m=
ailto:fot@autox.team.net" target=3D"_blank" rel=3D"nofollow" shape=3D"rect"=
>fot@autox.team.net</a>> wrote:</div><br class=3D"ydp1319985ayiv81421941=
91Apple-interchange-newline" clear=3D"none"><div class=3D"ydp1319985ayiv814=
2194191"><div class=3D"ydp1319985ayiv8142194191"><div class=3D"ydp1319985ay=
iv8142194191yahoo-style-wrap" style=3D"font-family:Helvetica Neue, Helvetic=
a, Arial, sans-serif;font-size:13px;"><div class=3D"ydp1319985ayiv814219419=
1" dir=3D"ltr">Its time for some new electrons in the Duke of Oil (TR4A as =
named by Hardy's wife Ellie) and there should be something better than a he=
avy ole wetcell type. I know some of the Optima batts are popular, but what=
is the flavour du jour? And will it need some sort of special charger?</di=
v><div class=3D"ydp1319985ayiv8142194191" dir=3D"ltr">OR<br class=3D"ydp131=
9985ayiv8142194191" clear=3D"none">Should I just go get another wetcell typ=
e?</div><div class=3D"ydp1319985ayiv8142194191" dir=3D"ltr"><br class=3D"yd=
p1319985ayiv8142194191" clear=3D"none"></div><div class=3D"ydp1319985ayiv81=
42194191" dir=3D"ltr">Thoughts and considerations?</div><div class=3D"ydp13=
19985ayiv8142194191" dir=3D"ltr"><br class=3D"ydp1319985ayiv8142194191" cle=
ar=3D"none"></div><div class=3D"ydp1319985ayiv8142194191" dir=3D"ltr">Outta=
juice here in NorCal</div><div class=3D"ydp1319985ayiv8142194191" dir=3D"l=
tr">Nick</div></div></div>_______________________________________________<b=
r class=3D"ydp1319985ayiv8142194191" clear=3D"none"><a class=3D"ydp1319985a=
yiv8142194191" href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"=
nofollow" shape=3D"rect">fot@autox.team.net</a><br class=3D"ydp1319985ayiv8=
142194191" clear=3D"none"><br class=3D"ydp1319985ayiv8142194191" clear=3D"n=
one"><a class=3D"ydp1319985ayiv8142194191" href=3D"http://www.fot-racing.co=
m/" target=3D"_blank" rel=3D"nofollow" shape=3D"rect">http://www.fot-racing=
.com</a><br class=3D"ydp1319985ayiv8142194191" clear=3D"none"><br class=3D"=
ydp1319985ayiv8142194191" clear=3D"none">Donate: <a class=3D"ydp1319985ayiv=
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rget=3D"_blank" rel=3D"nofollow" shape=3D"rect">http://www.team.net/piperma=
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/Manage: <a class=3D"ydp1319985ayiv8142194191" href=3D"http://autox.team.ne=
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1" clear=3D"none"></div></blockquote></div><br class=3D"ydp1319985ayiv81421=
94191" clear=3D"none"></div></div></div></div>_____________________________=
__________________<br class=3D"ydp1319985ayiv8142194191" clear=3D"none"><a =
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ill@ponostyle.com</a><br class=3D"ydp1319985ayiv8142194191" clear=3D"none">=
<br class=3D"ydp1319985ayiv8142194191" clear=3D"none"><br class=3D"ydp13199=
85ayiv8142194191" clear=3D"none"><br class=3D"ydp1319985ayiv8142194191" cle=
ar=3D"none"></div></div></div><div class=3D"ydp1319985ayqt5699972327" id=3D=
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ear=3D"none"><a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D=
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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