Lightweight Racing Batteries

Curious as to what your opinions are on light weight racing batteries?

What brand do you recommend? Style? cranking amps? Voltage? pros and cons?

Current set up is two 12volt regular batteries connected together.

Thanks
Adrian

David Willingham is the man to talk to. I was truly amazed that these little batteries could spin his engine over as fast as they did. Battery tech has come a long way in the last few years. That little green pack is what he uses and they are for an RC helicopter.

Wow thats crazy! How do I get a hold of this guy? Is he running anything else? Lights, water pump fans etc?

He might see this or you could PM him. He's listed under his name David Willingham.

We run Go Lithium batteries on most of our cars now.

16volt
8 lbs
1150 cranking
alternator safe with set voltage

1 battery and charger is about $825 shipped after paying hazmat fee and shipping.
2 battery and charger is about $1375 shipped after paying hazmat fee and shipping.

I will do a little better deal than that for members here.

We run one on all our forced induction and NA cars including bracket cars.  We recommend two for heavy nitrous cars due to the high current draw of the nitrous system.

I use an Oddesy PC625 ( 16 lbs) and have had excellent results.

I think Davids battery's together weight 3 lb's total. 16:1 642cid

132AH 14.6 VOLTS I may be off a smig on the specs, but I think Im close.

Adrian, I sent you a text. I'm putting together a system now for Lawes Mayfield and I will post info and pricing once I get his done. They are LIPO RC Helicopter batteries. They weigh 1.6 lbs each and I use two for a total of 3.2 lbs. The ones I used last year produced 165 amps each and the ones I am using this year produce 231 amps. They are around 16.7 volts fully charged and I like to swap them out at 15 volts. We have refined the parameters on the charger and went from 30-40 minutes to 11 minutes to fully charge two batteries from 50%. Rough pricing: $130 + shipping for each battery and about $500 for the charger with wiring & connectors, etc.

What's the catch you ask? You CANNOT let these batteries run dead or fall below around 13 volts. They are more aggravating to use. You have to take them off for charging. I am putting together a power supply this year to power the truck in the pits, so I don't use the batteries at all. That's when I have accidentally killed the batteries. Leaving the power on for hours while working on the truck and walking away. I don't have a water pump or fan, but I do have 8 injectors, 8 coils, the EFI computer, and taillights. I have some friends that use these on a X275 twin turbo car loaded up with electronics and they have no problems. They just swap batteries for fresh ones on every pass.

So are these batteries required to have this special charger only??
Does the alternator and vehicle charging system keep them charged, or are they a stand alone only type of deal??

Yes, special charger only. They cannot be charged with an alternator.

if you want to continue to run an alternator, look into Boostpack capacitors, as a battery replacement

samiam wrote:if you want to continue to run an alternator, look into Boostpack capacitors, as a  battery replacement

the  big ones
https://www.youtube.com/watch?v=GPJao1xLe7w&index=4&list=PLvHGNB8zTuY0Zl_ijwahnYviLjmFkBZLx
the little ones
https://www.youtube.com/watch?v=z3x_kYq3mHM&list=PLvHGNB8zTuY0Zl_ijwahnYviLjmFkBZLx

in the cold
https://www.youtube.com/watch?v=GUXM1XuLUIs