Originally Posted by HOTMOPR
Originally Posted by Hemi_Joel
I run a 780 cranking amp Anti Gravity ATX20. It spins my 13:1 Hemi over like the plugs are out of it. It will power the fan and wp for at least 10 minutes which is enuff to cool the car. THe alternator charges it fine, it survived Drag Week. it weighs 4.5 lbs and is supposed to last at least 10 years. Under $300. If you call AntiGravity direct, they will beat online pricing from resellers.

https://www.amazon.com/Antigravity-Batteries-Lithium-Motorsports-Battery/dp/B06XKQNJXY

https://www.pegasusautoracing.com/p...Uzezv6AIVc-W1Ch2WtA3AEAQYASABEgJwdvD_BwE



I have been checking these out as well! I worry though. I have a few loads. Electric water pump, turbo oil scavenge pump, small radiator fan, EFI system coil on plug and injectors. maybe the next size up??


Might not be a bad idea to go up one size. But if you have enuff alternator, the bigger battery will only give you more reserve for running stuff when the engine is off. This one certainly has enuff oomph to start the car.

[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
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