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Looking for a good lightweight battery. The lithium stuff looks real nice but am I going to get $1000 worth of performance out of it. The current battery is a 12v lead acid mounted behind driver over the axle tube. Not having trouble out of it just looking for anything to get faster. With that being said buying one would not cause us to skimp on new tires or shock maintenance or cut corners anywhere else.
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Just run a mag and push start it.Modern Day Spec Wedge Racing -
battery is only a hundred or two dollars more than a mag and way more advantages to the batteryComment
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Move it.... unless you have no lead on your car, then you need to drop weight elsewhere....maybe the DRIVER!Comment
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Take a look at the Dynabatt that Davis Distributors makes. It only weighs about 13 pounds, is very compact and cost around $160. They, oddly, don't give ratings for it but the durability and power it gives is awesome. Karl Fredrickson, of Speedway Illustrated, says they've had the same one in their asphalt Modified for over 10 years and they love it.
We're going to get one for our older car that could use a little diet if this season ever happens.Comment
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Look at it this way!
If you need to save weight, where else are you going to save between 15 and 30# for a thousand bucks?
Not easy to do for that amount of money for sure.
There are batteries out there that weight as little as 4# but more then the $1000.00 but if you were using a regular full sized battery, then it weighed around 39 to 49#. That's a huge weight cut.Last edited by billetbirdcage; 04-01-2020, 01:50 PM.Comment
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I should also add:
Removing that much weight typically mounted high may require a change on lead placement or alter your set up some.
So remember that if the car acts differentComment
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But does a 4# battery have enough capacity to crank maybe multiple times and last a full raceComment
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Yes, but that battery is 4 times the money we was talking about. Most of your lithium batteries in that 1000.00 range are 8 to 10# and will last a race no problem but do need recharged often. Since they are typically half the size, many teams run 2 of them in the same battery box just for safety.Originally posted by Mopar DLM View Post
Now keep in mind you see a lot more battery issues then before if you watch Lucas oil or WoO. No idea of the brand everyone is running or having issues with but he go lithium is pretty popular.
If it's not a lithium battery and very low weight like around 10 to 12# then it might be on the limit of how long the battery will last for anything but short races.Last edited by billetbirdcage; 04-01-2020, 05:19 PM.Comment
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PS: That dynabatt battery is just a rebranded Genesis G16EP battery (least it in the past assume it's still the same)Originally posted by over4T View Post
You can buy it here for 100.00Comment
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Interesting billet. Didn't figure Davis actually made them. Best I can dig up is that they're 675 cca. Frederickson said you had to keep up with keeping them charged but I do like the extended time they are said to last. Been only getting a couple of seasons out of the Interstates we've been using the last few years at $200+ a pop. May try one ...if we ever get a season this year. Thanks for the info.Comment
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Originally posted by over4T View Post
Read that if you want more info.
Again a small light weight alkaline battery is going to have limited capacity compared to a lithium. You are going to give up a lot of capacity with a light weight alkaline type batteries. My suggestion would be if you stay alkaline to stay more in the 16 to 20# range, but again depends on you engine, race length and situation.
You guys can read it for yourself and make you own minds up but here is a section from it.
"The reserve capacity is the number of minutes a fully-charged battery at 80ºF (26.7ºC) can discharge 25 amps and not drop below 10.5 volts. The G16EP/PC680 battery has a reserve capacity of 28 minutes. However, a "usable" reserve capacity of only 19 minutes is also listed. I would guess the "usable" rating means the battery should retain enough power to run the engine starter. At 10.5 volts, the battery is discharged and will not turn the starter. The starter in the 3000GT/Stealth, by the way, draws up to 90 amps or more."
19 to 28 minutes isn't a lot of time at 25 amps, but a lot of that will depend how much you drew from the battery by starting it and will have a huge effect on run time.Last edited by billetbirdcage; 04-02-2020, 02:14 PM.Comment
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Agree, but, I have seen some things, like bolt on intrusion plates, that really add unnecessary weight. Mopar DLM, what is your minimum weight requirement?Originally posted by billetbirdcage View PostComment
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Thanks for the link billet, interesting read and gives me something else to ponder during this downtime. I also better take a look at the various chargers and battery tenders in the shop before I decide. I'm optimistically pessimistic (oxymoron like jumbo shrimp?) about there even being a season this year,Comment
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CCHIEF, for the car it's 2350 after the race with a # a lap burn offComment
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