Light weight batteries?

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dusterdoug

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Anyone run a lightweight battery in a street/strip car? Like the Odyssey 680, a Braille 17/18, or a Dyna-Batt??

Talk to me...
 
Ya know what, I have a PC 680 Odessey that went dead after leaving the master on during maintenance on my airplane. It was flat, I recharged it, it's been sitting on a shelf for two years and it's still around 12.6 float.
Will check it tomorrow to verify that. I will try using it with jumper cables tomorrow to start the Dart, 418 small block. It's been sitting for 3 weeks. The starters between my plane and the Dart are pretty similar, I see no problem. The plane has a 360 cu in 4 cyl. Will let you know!. Would have to do some radical battery cable mods!
 
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There are LI batteries now.

H5/Group-47 Lithium Car Battery

But they are pricy.

When you are racing do you need a battery for your electronics or are you using an alternator?

If you are using an alternator perhaps you could get a small lawnmower battery so your alternator still has a buffer and use a Li jumpstart battery for starting
 
Tried jumper cable start with PC680, battery was at 12.8 float. Engine would not turn over, but in all honesty, the connections were poor. I have no more time to play with it to do a complete conversion for a proper test.
 
^^Juz' sayin^^ but terminal voltage means little so far as LI batteries. We fought this when I worked at the wheel chair joint. An automated system such as any electronics/ cameras/ etc, or wheelchairs generally the battery condition indicators are questionable. All LI batteries at least the high power ones, have a rather substantial "battery management" package that is also subject to problems

All LI based batteries should be charged on specialized chargers
 
I have an Odessey battery charger. It's an AGM battery. I am sure that I could get it to work, just don't have the time to mess with it. The PC 680 is lighter battery, coming in at 14.95 lbs. 8 year average life.
 
All LI based batteries should be charged on specialized chargers
Depends on the battery, IME/IMO. A lot of batteries intended for automotive or motorcycle use have built in electronics now to monitor the battery's charging cycle to prevent overcharge or high heat situations. Otherwise, we couldn't use them in everyday auto or M/C applications as the charging systems on them do not support the specialized Li-ion charging requirements. As long as your normal charger has an automatic shut off instead of reducing output to a trickle charge to the battery then it will work with the aforementioned electronically protected batteries. A specialized charger sure won't hurt but isn't absolutely necessary.

That said, any battery like you mentioned for power chairs and such should absolutely use the specialized charger for Li-ion batteries.
 
in a pinch you can charge an agm with a lead acid in parallel too 'wake it up'. lipos will shut down hard if they get under a certain voltage to prevent damage. They even have an ultra light weight super capacitor that can start a car. youtube it.
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All LI based batteries should be charged on specialized chargers

I'm no expert but Braille (the experts) say their batteries work fine with a standard alternator and I have been running mine for a year with no issues.
 
An understatement. $830 for a Li battery. Youtubes show starting a V-8 with a hand-held array of super-capacitors or a small Li jump packs, but that is in ideal conditions. I've used a small battery in my 65 Chrysler w/ big-block for a time in Atlanta. As long as not really cold and you don't have to crank long, you may not need the spec battery. The latest Tesla cars finally dropped the 12 VDC lead-acid battery for a 12 VDC Li battery, but they don't need much and used a half-size lead-acid anyway, as do most hybrids (no starter motor). I'm waiting for a small battery which will work in our cars, and be affordable. That will let me fit the AC compressor and brackets I have from a Volare slant to my 1964 slant without threatening to poke a hole in the side of the battery.
 
I’m digging this thread out of the grave.
Anyone using these here? Antigravity batteries. H7/Group-94R Lithium Car Battery
There was a discussion the other day about battery location. With one of these located under the rear / passenger side seat in a frenched in box would be ideal. They look to be shorter than an AGM. Direct replacement for a Hellcat.

H7-60-RS​

40 Amp Hours​

1500 Cranking Amps
15.6 lbs
  • H7-60-RS​

    60 Amp Hours​

    1800 Cranking Amps
    18.5 lbs


  • H7-80-RS

    80 Amp Hours​

    ~2000 Cranking Amps
    25.5 lbs

FEATURES & BENEFITS​

First Battery with WIRELESS Built-In Jump-Starting! Wireless Keyfob Remote actuated Emergency Jump Starting. So you won't be stranded by a dead battery ever again!
FULL Battery Management System (BMS) including Over-Discharge, Over-Charge, Short Circuit, Thermal Protections and Cell Balancing.
RE-START TECHNOLOGY: The RE-START Battery has self-restarting capabilities. It intelligently monitors its status and if it senses over-discharge it will put itself into a sleep mode, yet saves enough energy to allow you to RE-START your vehicle. Simply press the Wireless Keyfob.
OEM FITMENT: Exact Lead/Acid Replacement sizes. No additional modifications or trays necessary to install.
LONGER LIFE: 2x to 3x the lifecycle of lead/acid and other Lithium batteries due to full Battery Management system.
HIGH POWER: Up to 3x the Cranking Amps of similar sized lead/acid battery. Better Starting and higher voltage at start-up.
ULTRA LIGHTWEIGHT: The Antigravity RE-START Battery can be as much as 70% lighter than the Lead/Acid equivalent. This equates to roughly 25-55 lbs of instant weight-loss just by changing out the battery! That makes the Antigravity Lithium-Ion Battery the most cost-effective weight-loss product hands-down, while offering better starting, handling and braking! A real performance value!
LOW SELF-DISCHARGE: The RE-START Battery does not self-discharge like Lead/Acid Batteries. It offers a longer storage time provided there are not excessive Parasitic Drains on the battery.
DURABILITY AND CAR SAFE: Much more resilient to vibration than Lead/Acid. Incredibly shock and vibration resistant; no liquids or acid inside to spill or drain out. Will not release dangerous Hydrogen while Charging and will not leak liquids that are damaging to your finish or chassis such as acid.
ENVIRONMENTALLY SAFER BATTERY: No Acid or Heavy Metals such as Lead, Cadmium, or Mercury. Always remember to Recycle your batteries responsibly!
 
IMG_8214.jpeg


This thing has a jump start function! How cool is that?
 
I don't run that brand, but I've been running a Braille for years. It the same battery model that would go in a new style hellcat.
 
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