Viper not starting

Viper not starting

Author
Discussion

mrfunex

Original Poster:

545 posts

174 months

Saturday 28th December 2019
quotequote all
Hello all,

I recently bought a battery conditioner for my gen 3 Viper. It’s a CTEK one, and it claimed the battery is fine after ‘conditioning’ for several days.

I managed to unlock the car today, key in, and the dashboard lit up as normal. Pressed the start button and a click of a relay and then nothing. The car is utterly without electrics - no flashing lights, electric windows, or power to anything. At all.

Wondering if the battery could have been a bit iffy and the conditioner sort of finished it off?

Any ideas would be welcome. I’ll be fitting a new battery anyway - it’s the cheapest bit to begin with, and I’ve got no idea how old it is!

sonicbloo

637 posts

150 months

Tuesday 31st December 2019
quotequote all
Let us know how you get on. I've got a CTEK for my Gen 3 with pigtails on the battery so I can plug it in by reaching through the rear diffuser.

I replaced my battery a couple of years ago (£99) but they don't last for ever if the car is not used much

stevieturbo

17,260 posts

247 months

Tuesday 31st December 2019
quotequote all
No issues with my c-tek...although as they only do slow charges etc etc, they cannot really offer any info on how a battery will perform under a heavy discharge.

If it needs a new battery...it needs a new battery. But always worth checking any main connections first.

mrfunex

Original Poster:

545 posts

174 months

Tuesday 31st December 2019
quotequote all
Well, a few fun and games familiar to Viper owners - trying to find the correct type battery! The one fitted was a type 34 with 825CCA and was astonishingly heavy, but I couldn’t find anything like that for sale in the UK.

It also wasn’t easy finding out what spec an OEM battery was! (Turned out to be a type 34/78 supplying 600CCA). I believe that type 34 is essentially the same thing as a type 78, excusing a few mm in size which didn’t make a difference to fitting - at least not in the gen 3 convertible.

So, I bought a type 78 Exide battery with 540CCA from Euro Car Parts for £80. Fitted, it seems to work just fine. I’m hoping the slight reduction in cranking amps won’t be an issue unless I take it to Siberia on a winter road trip.

All weird behaviour of the electrics has ceased - time to reset the soft-close windows (again!) and go for a drive! Thanks for the comments.

Oh, and the old battery was only dated mid-2017, so must have either been mistreated or wasn’t a great one to begin with. Who knows!

Edited by mrfunex on Tuesday 31st December 16:25

viper-bry

57 posts

181 months

Friday 17th April 2020
quotequote all
Just had a similar issue with my 1993 rt10.

Car would not even start with jump cables linked to a running car sat at 3500 rpm.

Removed battery.... only putting out 8v
Put on charge
Was only showing 11v after 24hrs
After 2 1/2 days on charge, battery showing 13-14 v
Car started first click
Battery is rated 650 cca .... not original

I think the original spec is 780cca


Also.... spoke to my local small garage... a family run village garage.... who advised that some modern batteries dont recharge once they have been run down very low.

fatboy18

18,947 posts

211 months

Friday 17th April 2020
quotequote all
https://advancedbatterysupplies.co.uk/product/adva...

Fitted a few of these now in Various Vipers smile

Price has gone up a bit in the last 6 months!


Do you guys keep your batteries on a good quality constant trickle charger in the garage?

If not, then that's your problem, there is always a slight drain on these batteries from the alarm and radio. So leaving the car without having it hooked up to a trickle charger will kill it in no time at all.


Edited by fatboy18 on Friday 17th April 17:22

viper-bry

57 posts

181 months

Saturday 18th April 2020
quotequote all
I have a full battery isolator switch in boot.... just forgot to turn it off..... again..!!

On another note....
Can anyone suggest a viper specialist garage for servicing and repairs..??

mrfunex

Original Poster:

545 posts

174 months

Saturday 18th April 2020
quotequote all
I’ve used Brookspeed (just outside Southampton) and only a few miles away from me. They're mainly Porsche, but see the occasional Viper, and used to race them in the BritGT championship...