im planning on running 2 nemessis amps.

what batterys can you recommend? dont have a lot money for them would like 2,
have about £150 to spend on them.
so optimas etc are out the window:(
alternator will be getting a rewind to at least 120amp

are truck batteries 24v or are they just 2 12's in series?


cheers Neil

how bout those deta batts i think they are, they are copies of the exide maxxima or sumthin?? They have had good reviews, not sure on cost, il try an find the link.

Varta silver dynamic.

www.varta-automotive.co.uk (from memory)

http://www.auto-electricals.co.uk/a...deep_cycle.html

Heres another link to have a look at.

Bellur, that battery comes in waay over budget, as he's looking for 2

Do you require the batteries to be deep-cycle capable chap?

id assume theyd be better if they were deep cycle

dont neccessarially SP??? need 2 of them just want the power supply to be good for the amps so dont go pop

using the varta leisure batt calculator thing. for a current draw of 400amps for half an hour a 180aH battery would do.

http://www.adverc.co.uk/products/batt/numax.asp

look decent enough for the money!!!

1 624

or

2 679's

Leisure batts aren't deep cycle unfortunately AFAIK.

And leisure batteries are optimised for small current traws, for extended periods of time... unfortunately, you need a battery optimised the other way around

ah rite

so would a starter battery like a red top be better then? high CCA ?

The 624 or 625s look good IMO

Not deep cycle but are more designed for high outputs over short time than very slow discharge leisure batteries.

200 aH aswell but you really need to know what the test was to achieve the 200aH figure, some companies fiddle these and use easy tests for high numbers.

Ben

Black-Cat... why do you say the Varta Silvers? For the same dimentions for example, the equivalent Blue battery to the Silver 88Ah one, gives 100Ah

Black-Cat... why do you say the Varta Silvers? For the same dimentions for example, the equivalent Blue battery to the Silver 88Ah one, gives 100Ah

Higher peak current!

Can you elaborate fella?

Will you ever come close to drawing the peak current of a battery?

Is it worth sacrificing capacity for?

How much more do they cost?

Is there a relevant difference is CCA?

Where do babies come from? ;)

You will never draw the max current (I hope) but the internal resistance is lower. Always helps.

You will never use the full Ah either capacity as you will kill the battery.

The Deta is 900A cranking, the red top is 815A, both are about the 50Ah mark though.

i thought i had a varta silver, but just checked and it's a bluey, still rate it, it's stopped the dimming lights which occured with my previous helfrauds calcium lump.

You will never draw the max current (I hope)You will never use the full Ah either capacity as you will kill the battery

True, but surely, you can use a certain percentage of the current held in the battery, without causing damage... with a larger capacity battery, surely there is still more useable power

Peak current and Ah are not REALLY related. Certainly for my application where I can't fit a bigger batt, the silver was the biggest capacity and peak amps I could get.

I'd still recomend the silvers.

I wasn't really saying that Peak Current and Ah are dependant, sorry if it came across as that...

What I'm saying, is that if you go for the Silver, over the Blue, assuming physical size (the most common constraint in betteries is seems) is the same, you'll sacrifice Ah, in favour of gaining more peak current... would this peak current really be needed? Looking at it meself, i'd rather have a larger capacity given the choice... Is there more to it than this?

Depends what you want. If you want lots of capacity then maybe you should be looking at deep cycle.

You could use about 20Ah of the blue and 17Ah from the silver without damaging it so its not as bigger difference really.

Ah values are truly pointless really! :)

truck batteries are 12v

Ive got a truck bat you could buy off me if you want mate. Im sure it'll be more than enough for ya :)

These are the ones that adam (dumdum) used to run in his saxo, but there not small! or light for that matter!

id consider it but i think the cost of delivery might put the price up a fair bit!

Oh ****, didnt read where you were from.

TBH mate, I know that Gord and Adam go over to ireland quite a lot, allbeit im not sure when there next over there. With a bit of luck one of them might read this.

as we are on the subject of batteries whats the best deep cycle battery on the market?

the big truck batts i had were spot on for playing for long periods of time! they would hardly lose any voltage when being played with a reasonable volume for extended periods, which is just what ya want for two nemesis! they were the above mentioned ones from mr bump! 200ish a/h and god knows what cca! they were awesome and did there service with no quibbles! ;) ;) ;)

See, i do have some taste!

And i can pick good battery from bad;)

Ben

have you seen the new stinger yellow top range they do a spv70, internal resistance of 4 mohms, 70Ah, 1050amps 5 sec burst, cca 875 they retail around £230 but im sure you could haggle down the price

what about this

http://www.caraudiodirect.co.uk/product_info.php?products_id=1385

If your getting a Stinger batt, get the 1000 or even the daddy 1700.

Ben

yeah looked at the 1700 but its £420 which for me is a tad excessive, think I'll just get a maxxima 900DC