Battery help

Hey guy's need some advice please i have a rb25det in my s13 and stand alone diktator wasted spark managment, now iv tryed two batterys already strongest one iv had was a 657 70ah battery and still seems to weak 🙁 the diktator system before i start my car i must leave the ignition on for a few seconds for fuel pump to prime and struggles to start when cold and just by swinging it a few times battery gets flat real quik, i was looking at a optima yellow top battery but dammm 5K for that battery a bit hectic and optima can only give me a year warrenty in sa but 3years in uk not sure why but do any of you guys have good experience with any batterys you can recommend and with good cold start cranking amp's any input would be appreciated. :200sx_200sx:

I ran the normal sx battery fine. 639 I think.

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u dont need anything special for a rb and dicktator. Check that your alternator is charging make sure you grounding is good a bad ground could make the kak make sure everything is grounded right coils ecu alternator make sure there is a ground cable from batt to motor and from batt to chassis

Check ground

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thanks guys i have ground from motor to body and from body to battery but dont have one direct from battery to motor, ok so il get a another new battery now but get high Ah like 120ah :200sx_200sx:

And look for a deep cycle no maintenance battery.

Draco wrote:

And look for a deep cycle no maintenance battery.

I phoned a battery centre and they said a deep cycle battery is ment for a car with a lot of electronics and not realy for cold cranking, so not to sure now but to me i would think deep cycle will be best as they said a normal lead acid battery lifes span drops by more than half if battery is draind more than 80%, can anybody recommend a battery brand they have used that is real good quality and does not cost a arm and leg, thanks for all the input guys, i just dont want to waist more money.

It is true that "normal" batteries have greater cranking power, slightly, but they are only able to put out that power for a very limited time where a deep cycle can keep that power for more cranks and not die as fast.

I use to use AC Delco/Deltech for my sound competitions. They are more expensive then the normal makes but not close to the optima's prices.

i use a varta got it from deltech

Yes thats their new range.

I got 1 for my diesel car as well and those need high cold crank current and the varta is performing very well!

I also have a varta in my sx now that I think of it and I am powering the wolf 3D, larger fuel pump, Water/Meth, ignition amplifiers, electric fans and the normal electronics.

rykgat!

I i see deltec has some good reviews and does not cost a arm an leg :200sx_2guns: