12V battery died after 8 years

So the Odyssey PC925, 28Ahr, 6.64" x 7.05" x 5.83", finally, reluctantly, gave up the ghost this month. A master alarm and when I checked, it was at 11.37V . . . going to battery heaven:

• January 2009 - start
• May 2017 - beginning to die
• 8 years, 4 months ... got our money's worth

So I found this Ebay battery (item 142262926083)

• Sealed Lead Acid Battery 12V 33 Ahr AGM
• 7.7" x 5.0" x 6.0"
• Bolt terminals
• $59.00

In table form, this makes more sense:

	metric	OEM	PC925	Mon Pro
1	Ahr	?	28Ahr	33Ahr
2	CCA	272A	330A	?
3	length	7.75"	6.64"	7.70"
4	width	5.07"	5.83"	5.0"
5	heigth	7.99"	7.05"	6.0"
6	cost	~$190	~$200	$59
7	weight	?	26 lbs	24 lbs

Regardless, the battery is ordered and should be here Monday.

Bob Wilson

 

We 'sold' it to our house keeper. So anytime there is a problem, she gets "Bob-warranty" which includes,"This is how you do it ..."

Bob Wilson

 

Only if I want her to reach chez Wilson and help take care of my wife and the house keeping. <GRINS>

She had a long history of remarkably inefficient and unreliable rides over the years. This is the first car she's had that is affordable to run and has a 1 kW inverter for emergency and off-grid power. She still brags on it to her family and friends.

Specs: http://www.power-sonic.com/images/powersonic/sla_batteries/ps_psg_series/12volt/PS-12330_11_Feb_21.pdf

According to these specs, the width is 5.14" and we need to be under 5.07". However the sketch shows the width measured at the top where there is a 'lip'. I'm hoping the base width is as the seller advertised, 5.0". If so, we're golden. If not, well have to come up with a work-around.

Bob Wilson

 

The battery arrived and I checked it against a properly scaled, PowerPoint sketch:

PowerPoint is not a true-scale drawing program so you have to measure the dimensions and scale them manually. Not a big deal but necessary.

Bob Wilson

 

A C-SPAN replay of Sunday's program about his books:

• Merlin's Tour of the Universe (1st ed 1989/2nd ed 1998). ISBN 0-385-48835-1
• Universe Down to Earth (1994). ISBN 0-231-07560-X
• Just Visiting This Planet (1998). ISBN 0-385-48837-8
• One Universe: At Home in the Cosmos (2000). ISBN 0-309-06488-0
• Cosmic Horizons: Astronomy at the Cutting Edge (2000). ISBN 1-56584-602-8
• City of Stars: A New Yorker's Guide to the Cosmos (2002)
• My Favorite Universe (a 12-part lecture series) (2003). ISBN 1-56585-663-5
• Origins: Fourteen Billion Years of Cosmic Evolution (co-authored with Donald Goldsmith) (2004 / softcover reprinted in 2014 with a new cover reflecting Tyson's status as host of Cosmos: A Spacetime Odyssey). ISBN 0-393-32758-2
• The Sky Is Not the Limit: Adventures of an Urban Astrophysicist (2004 / softcover reprinted in 2014 with a new cover reflecting Tyson's status as host of Cosmos: A Spacetime Odyssey). ISBN 978-1-59102-188-9
• Death by Black Hole: And Other Cosmic Quandaries (2007 / softcover reprinted in 2014 with a new cover reflecting Tyson's status as host of Cosmos: A Spacetime Odyssey). ISBN 0-393-33016-8
• The Pluto Files: The Rise and Fall of America's Favorite Planet (2009 / softcover reprinted in 2014 with a new cover reflecting Tyson's status as host of Cosmos: A Spacetime Odyssey). ISBN 0-393-06520-0
• Space Chronicles: Facing the Ultimate Frontier (2012 / softcover reprinted in 2014 with a new cover reflecting Tyson's status as host of Cosmos: A Spacetime Odyssey). ISBN 0-393-08210-5
• Welcome to the Universe: An Astrophysical Tour (co-authored with Michael A. Strauss and J. Richard Gott) (2016). ISBN 978-0691157245.
• Astrophysics for People in a Hurry (2017 / Hardcover Release Date: May 02, 2017). ISBN 978-0-39360-939-4, published by Norton, W. W. & Company, Inc.

He is a fascinating character who has led and continues to live an interesting life.

The universe and our local niche, the solar system, that incidentally includes battery replacement. But Niel also spoke at length about how it is more important to understand the scientific method as a way to seek truth (or perhaps what I call 'less ignorance') versus advocacy of non-scientific thinking. For example, students leaving a school term happy instead mourning the loss of opportunity to learn something new. Niel raises the question of what are we doing wrong that learning is treated with such disrespect?

Bob Wilson

 

We put it in at noon but I didn't take photos. It perfectly fits the base but we did have to use the wooden block shims to make the hold-down work. I'll try to post some photos of the installation Wednesday.

Bob Wilson

 

Not a great photo:

• That nut is not compressing the lock washer . . . need to fix.
• The negative ground wire is obscured by the original connector.
• The B+ leg is a little easier but not great to see
• Notice the original 12V protector is on the assembly
• Those thick cables feed the 1 kW inverter
• Two large, tie-ties will replace or augment the duct tape holding the two piece wooden shim in place

Bob Wilson

 

The base of the battery holder has a rim that handles forward, side, and rear G-forces. So I used a battery that fit within the base and used shims to bring the edges to the battery. The top shim only has to deal with vertical forces and gravity is your friend.

Yes, those are the OEM, battery terminal clamps that also have a bolt that nicely holds the M6 jumpers from the battery. I wonder if there might be battery terminal posts metric and SAE with an M6 threaded base bolt. It would be a nice solution.

Still pick your poison.

The previous battery installation: Auxilliary Battery Life: Please POST if you have replaced yours | PriusChat

Bob Wilson