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Oops, error: Actually, it=E2=80=99s possible to have a two terminal =
battery that cuts off charging when a maximum voltage is reached, but to =
my knowledge none of the batteries available commercially do that.=20
> On Sep 15, 2019, at 9:07 PM, Ponostyle via Fot <fot@autox.team.net =
>=20
> 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 tricky. 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 to manage =
a lithium battery is to keep it connected to the car but disable =
charging when the cells reach about 95% charge, and disconnect the =
battery entirely if the cell voltage gets to 20 percent or so. If you do =
that the battery will outlast the car. If you don=E2=80=99t, it might =
die the first 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.=20
>=20
> 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 mixture on fire, in which case it turns back into water =
and disassembles the battery.=20
>=20
> 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.=20
>=20
>> On Sep 15, 2019, at 8:38 PM, Nick Black via Fot <fot@autox.team.net =
>>=20
>> 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?
>>=20
>> Thoughts and considerations?
>>=20
>> Outta juice here in NorCal
>> Nick
>> _______________________________________________
>>=20
>> http://www.fot-racing.com <http://www.fot-racing.com/>
>>=20
>> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
>> Archive: http://autox.team.net/archive =
<http://autox.team.net/archive> http://www.team.net/pipermail/fot =
<http://www.team.net/pipermail/fot>
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/bill@ponostyle.com =
<http://autox.team.net/mailman/options/fot/bill@ponostyle.com>
>>=20
>>=20
>=20
> _______________________________________________
>=20
> http://www.fot-racing.com <http://www.fot-racing.com/>
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive =
http://www.team.net/pipermail/fot
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/bill@ponostyle.com
>=20
>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><meta=
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; line-break: after-white-space;" class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; line-break: after-white-space;" class=3D"">Oops, error: Actually, =
it=E2=80=99s possible to have a two terminal battery that cuts off =
charging when a maximum voltage is reached, but to my knowledge none of =
the batteries available commercially do that. <br class=3D""><div =
class=3D""><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Sep 15, 2019, at 9:07 PM, Ponostyle via Fot <<a =
href=3D"mailto:fot@autox.team.net"; class=3D"">fot@autox.team.net</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; line-break: after-white-space;" class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; line-break: after-white-space;" class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; line-break: after-white-space;" class=3D"">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 tricky. 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=99=
t 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 to manage a lithium battery is to keep it connected to the car =
but disable charging when the cells reach about 95% charge, and =
disconnect the battery entirely if the cell voltage gets to 20 percent =
or so. If you do that the battery will outlast the car. If you don=E2=80=99=
t, it might die the first 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. <div class=3D""><br class=3D""><div =
class=3D"">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 mixture on fire, in which case it turns =
back into water and disassembles the battery. <br class=3D""><div =
class=3D""><br class=3D""></div><div class=3D"">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""><div class=3D""><br =
class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On Sep =
15, 2019, at 8:38 PM, Nick Black via Fot <<a =
href=3D"mailto:fot@autox.team.net"; class=3D"">fot@autox.team.net</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D""><div class=3D"yahoo-style-wrap" style=3D"font-family:Helvetica =
Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir=3D"ltr" =
data-setdir=3D"false" class=3D"">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?</div><div dir=3D"ltr" =
data-setdir=3D"false" class=3D"">OR<br class=3D"">Should I just go get =
another wetcell type?</div><div dir=3D"ltr" data-setdir=3D"false" =
class=3D""><br class=3D""></div><div dir=3D"ltr" data-setdir=3D"false" =
class=3D"">Thoughts and considerations?</div><div dir=3D"ltr" =
data-setdir=3D"false" class=3D""><br class=3D""></div><div dir=3D"ltr" =
data-setdir=3D"false" class=3D"">Outta juice here in NorCal</div><div =
dir=3D"ltr" data-setdir=3D"false" =
class=3D"">Nick</div></div></div>_________________________________________=
______<br class=3D""><a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a><br class=3D""><br class=3D""><a =
href=3D"http://www.fot-racing.com/"; =
class=3D"">http://www.fot-racing.com</a><br class=3D""><br =
class=3D"">Donate: <a href=3D"http://www.team.net/donate.html"; =
class=3D"">http://www.team.net/donate.html</a><br class=3D"">Archive: <a =
href=3D"http://autox.team.net/archive"; =
class=3D"">http://autox.team.net/archive</a> <a =
href=3D"http://www.team.net/pipermail/fot"; =
class=3D"">http://www.team.net/pipermail/fot</a><br =
class=3D"">Unsubscribe/Manage: <a =
href=3D"http://autox.team.net/mailman/options/fot/bill@ponostyle.com"; =
class=3D"">http://autox.team.net/mailman/options/fot/bill@ponostyle.com</a=
><br class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br=
=
class=3D""></div></div></div></div></div></div>___________________________=
____________________<br class=3D""><a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a><br class=3D""><br class=3D""><a =
href=3D"http://www.fot-racing.com/"; =
class=3D"">http://www.fot-racing.com</a><br class=3D""><br =
class=3D"">Donate: <a href=3D"http://www.team.net/donate.html"; =
class=3D"">http://www.team.net/donate.html</a><br class=3D"">Archive: <a =
href=3D"http://autox.team.net/archive"; =
class=3D"">http://autox.team.net/archive</a> <a =
href=3D"http://www.team.net/pipermail/fot"; =
class=3D"">http://www.team.net/pipermail/fot</a><br =
class=3D"">Unsubscribe/Manage: <a =
href=3D"http://autox.team.net/mailman/options/fot/bill@ponostyle.com"; =
class=3D"">http://autox.team.net/mailman/options/fot/bill@ponostyle.com</a=
><br class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br=
class=3D""></div></div></body></html>=
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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
--===============6733352096390921615==--
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