-------- Original Message --------
Subject: RE: NPC:
Optima battery question
From: "Bill Cardell"
<Bill@flyinmiata.com>
Date: Wed, December 09, 2009 3:52 pm
To:
"Donni" <donni@zenwheelz.com>, "Mark Cookson"
<mcookson@gmail.com>
Cc: Miata Powerlist
<miatapower@miatapower.net>
Oddly enough, I believe this is why the alternator is ecu
controlled on nb > cars. The ecu looks at the intake air temp as one of the
parameters for charging voltage/current. Wouldn't think there would be a
strong correlation between air at the MAF and battery temp in the
trunk?
Bill Cardell
TurboDog's Dad
www.flyinmiata.com
www.fmwestfield.com
Sales
1-800-359-6957 Tech
970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/
If you lay out the cash for a good battery (AGM) don't ruin it with
a cheap charger (ask me how I know about this...). Buy a Battery Tender brand
or other quality temp sensing, regulated charger. More up front but cheaper in
the long run......as with most things.
For your research and reading
pleasure, check out this PDF (page 9 in particular) from one of the major
battery manufacturers (pretty sure the Westco is a rebadged WP/Deka as are
many others).
Regarding Absorbed Electrolyte (AGM) type batteries, from
the
East-Penn PDF (page 9);
"
Automatic
temperature-sensing, voltage-regulated chargers must be used.Charge
voltage must be limited
(14.4 to 14.6 volts maximum at 68°F)"
On Wed, Dec 9, 2009 at 5:12 PM, Mark Cookson
<mcookson@gmail.com> wrote:
Thanks
for the tip on the battery charger and cable. The local BatteriesPlus
is close to the local Harbor Freight so maybe I can get a new battery and a
way to keep from killing it in one shot.
Sounds like the Optimas are hit or miss. I'll see what BP tries
to sell me...
Thanks everyone!
Mark
On Wed, Dec 9, 2009 at 3:38 PM, Ross Kuhns
<rosskuhns@hotmail.com> wrote:
I don't know the ins/outs of Optima's, but really, just put the thing
on a float charger; it monitors and only turns itself on when the power
drops. They're "plug and forget about it".
I do this with all my
motorcycles (expect for the /6 which is at Donni's house) and it's so less
stressful than trying to remember to put them on a bit of a charger each
day.
I use the Yuasa, 'cause it has the lights that tell you
when it's good (green) or charging (yellow led comes one)
http://www.yuasabatteries.com/chargers.phpHarbor
freight has the ones with just one light for like $6 on sale quite
often.
I stick the Fused Ring Connector permanently on the
battery, then it really it just plug and forget. Have it on my miata too.
http://www.yuasabatteries.com/accessories.php Ross
Kuhns
Date: Wed, 9 Dec 2009 15:31:28 -0600
Subject: NPC: Optima battery
question
From:
mcookson@gmail.comTo:
miatapower@miatapower.net
Hi guys,
I'm in need of a new battery. The last one I got died because I
basically hardly ever drive my Miata anymore (crying shame, I know).
Do the Optima's last longer while not being charged by occasional
driving? Or should I just settle for a cheap battery and buy them
like they're disposable?
I know I should put the battery on a trickle charger once a month,
but somehow I'm too lazy to do even that...
Thanks,
Mark
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