Thread: 32 highboy sedan battery mount

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Originally Posted by Ken Thurm

I have that one in my truck. It has a pretty nice stereo in it with a 55 amp alternator and mine is always up. No problems, I drive it 2 or 3 times a week, weather permitting.
You can add up your usage and take the guessing out of it. It's just so nice to work with the small size. I have two wing nuts and it drops down from under my dash.
Ken

Ken,
I agree, the battery is there to start the engine, and to supplement in those low rpm times when the alternator output can't handle the load. I have a 100amp alternator, which helps that situation. It is probably shown in a build thread, but did you use bulkhead connectors to pass through the firewall or thread the cables in grommets and then terminate ends? Anything special on mounting for the two wingnut drop out? One of the nice things is that the dry unit can mount in any orientation, upright or flat - right?

Originally Posted by rspears

Ken,
I agree, the battery is there to start the engine, and to supplement in those low rpm times when the alternator output can't handle the load. I have a 100amp alternator, which helps that situation. It is probably shown in a build thread, but did you use bulkhead connectors to pass through the firewall or thread the cables in grommets and then terminate ends? Anything special on mounting for the two wingnut drop out? One of the nice things is that the dry unit can mount in any orientation, upright or flat - right?

I am going out of town till Monday, but if you want I will dig out the photo's on how I did it and post them then.
Ken

Yep, any position except upside down. I would recommend you call Odyssey and run your application by them. They were extremely friendly when I called them and suspect they are still the same.

Here is where I tucked mine in, so as you can see it sits right where it gets wet, etc. Even under those conditions it's been fine.

Don

Don,

I look at that and I don't think I will ever use a old style again. Last year at the SEMA show Mike and Bob took me to a booth where they had lithium battery's that were at least twice the power of conventional stuff and smaller that the one we used, really neat for space saving. That's what I'm going to get for my sedan.
Ken

Originally Posted by Ken Thurm

I am going out of town till Monday, but if you want I will dig out the photo's on how I did it and post them then.
Ken

Ken, that would be great, but I'm also intrigued by your lithium battery reference. Can you point me to a manufacturer that you looked at?

The 6 volt Optimas work great in a sedan. Hook 2 of them up in series end to end behind the back seat.
Tim

Originally Posted by rspears

Ken, that would be great, but I'm also intrigued by your lithium battery reference. Can you point me to a manufacturer that you looked at?

Go to xspowerbatteries.com pretty cool stuff.
Ken

Originally Posted by Ken Thurm

Go to xspowerbatteries.com pretty cool stuff.
Ken

Ken, XSPowerBatteries seems to have an ideal package, small and significantly more power. However I could not find anything on how to buy from them. I have an e-mail in to them.

I'm still very interested in details of your behind the dash mount if you can point me to any pictures posted previously?

Roger,
Hang on to your wallet but I think the advantages out way the cost.
Ken

I talked to Nathan at XSPower today, and they are currently in development on their Lithium line for automotive applications that use an alternator output to recharge. At this time their lithium line is only for total discharge service, focused on racing applicagtions like ProStock where you need to start the vehicle, provide power to run for a few minutes, but recharge via a wall plug DC charger, specifically designed for their batteries. This is their LR48 unit, which is computer controlled output and dedicated wall charger in the $2000 ballpark. They have not yet determined the specifics of packaging but expect size to be something like their 680 or 925 units in their AGM (absorbed glass mat) batteries. Their AGM line is similar to that from Odyssey, but XS may have a bit more power - hard to say as they do not print their specs the same way.
Nathan estimated that their lithium street automotive line is at least six months out at this time. All lithium units will have internal computerized technology, so an automotive alternator friendly unit is going to be several (many?) times the nominal $120 price for an AGM unit. Looks like a sealed AGM style is my ticket.
Ken, as noted above if you can point me to pictures of your under dash installation I would love to see your approach.