new car battery flat from shop

smcaul

Conor wrote: »

You may want to go do some rudimentary maths. You'll find out that a fully charged battery can keep a starter motor turning over for quite a while. As my car starts within a few turns, it'll start my car without being recharged many dozens of times. In fact, I've run a car for nearly a week commuting to work and back covering 300 miles with a duff alternator on a single battery charge.

Oh, and then there's the Top Gear feature from a few years ago where they raced a mini, golf and some jap thing round a racetrack using nothing but starter motors to propel the cars which also proves you wrong.

Clearly your maths is not really up to much.

http://www.autoexpress.co.uk/products/products/210431/car_batteries.html

And see how many starts they got out of a fully charged battery, makes quite an interesting read, don't you think?

Feel free to offer your apologies, it is the season of goodwill after all.

smcaul

d.edna wrote: »

Stop being a biggot

Wow, what a constructive argument!

smcaul

d.edna wrote: »

wow sorry mr know-it-all

Fortunately, I am well aware of my limitations and knowledge, that's why I only comment on threads where I know what I am on about - you ought to try it sometime, it stops you looking like a tit. :rotfl:

marleyboy

Brooker_Dave

marleyboy wrote: »

Is that your girlfriend?

Zanzibar

All car batteries should come fully charged - if its anything less then its likely its already damaged and it could fail you prematurely. I'd get the battery tested with a proper load tester - AA always do this test when they come out - or Kwik Fit do a free test.

If the battery fails the load test get the original supplier to swap it for you.

Generally the best idea is to buy from an outlet with high turnover of batteries - eg. main car dealer or Halfrauds that come with a 3 or 4 year warranty.

The general advice is only to buy a dated battery and that's no older than 6 months max. Note that a 'bench' change is a top-up charge, using a plug in charger, to retain fully charged condition of an out-of-vehicle-battery - there is no concept of a 'partial just-to-get-started' type of charge.