[abeardo83]

Got a new battery for the car and want to register it with CARLY. Old battery was 80a and the new one is 77a. The Carly app options are 80a and 70a. Which one should I pick?

[MightyMouseTech]

Chose the 70 a setting. Never go higher than what the battery is.

[abeardo83]

Originally Posted by MightyMouseTech

Chose the 70 a setting. Never go higher than what the battery is.

Don't know why i didn't think of that - thanks.
Me and spannering is ok. Me and electrics is not!!!

[jimpom23]

THREAD RESURRECTION!!

My current battery is 80A but every site I go to and enter my reg in like Tayna/ECP etc, 90% of the options I'm getting are below 80A like 74 or 77.

I assumed I would have to code to 70, I assume that a lower amped battery will be fine as long as the car knows about it?

[rasa bmw]

i wouldnt go lower,,higher yes but not lower,same goes for cca

[jimpom23]

Originally Posted by rasa bmw

i wouldnt go lower,,higher yes but not lower,same goes for cca

That was always my thinking but every site I go to offers me 70a to 77a and the smaller 278mm length battery, the larger amped ones are bigger physically and would fit fine but conscious none of that size are offered on ECP/Tayna etc when I put my reg in? 😕

Edit - just checked ECP again and the most expensive battery it's offering (Bosch S5 at £200) is 77a?!

[rasa bmw]

https://www.tayna.co.uk/car-batteries/bosch/s5a11/

[jimpom23]

Originally Posted by rasa bmw

https://www.tayna.co.uk/car-batteries/bosch/s5a11/

That's an AGM, I just need normal. You've seemingly found the same thing, though. There are plenty of correct amp/cca out there but they are all 315mm long which are physically bigger than the one I have now/am being offered when I enter my reg.

Maybe the real question is, am I ok to replace a 278mm long battery with a 315mm long one as long as the specs are all kosher and it fits the hole (which it would)?