I bought (today) 2 x 9v batteries (brand new) at a cost of approx £5 - if I was to buy 2 x 12v car batteries (brand new) it would cost me well over £100 - so for an extra 3v I would be paying roughly 20 times as much - is this a rip-off or what :-[

No doubt this is a very simplistic way of expressing it; and probably it's something to do with with mega amps per hour and size of cells/whatever (I'm no electrician) but car batteries do seem extraordinarily expensive >:(

Hey man- it's the Acid!! ;D

Simple answer buy 8x 1.5v AA batteries connect them end to end mesure voltage and hey presto 12v then try using them to try and start a your motor  ;)

rob in gib wrote on 13. Nov 2009 at 20:01:

Simple answer buy 8x 1.5v AA batteries connect them end to end mesure voltage and hey presto 12v then try using them to try and start a your motor  ;)

Who is going to forward this to the Brainiacs team then. ::)

Mr Skrunts wrote on 13. Nov 2009 at 20:26:

rob in gib wrote on 13. Nov 2009 at 20:01: Simple answer buy 8x 1.5v AA batteries connect them end to end mesure voltage and hey presto 12v then try using them to try and start a your motor  ;) Who is going to forward this to the Brainiacs team then. ::)

probably the car wont feel that voltage ;D ;D

cem wrote on 13. Nov 2009 at 20:58:

Mr Skrunts wrote on 13. Nov 2009 at 20:26: rob in gib wrote on 13. Nov 2009 at 20:01: Simple answer buy 8x 1.5v AA batteries connect them end to end mesure voltage and hey presto 12v then try using them to try and start a your motor  ;) Who is going to forward this to the Brainiacs team then. ::) probably the car wont feel that voltage ;D ;D

Most cars actually use 12v  lol  but amps now theres something  :y :y :y :y :y :y

rob in gib wrote on 13. Nov 2009 at 21:06:

cem wrote on 13. Nov 2009 at 20:58: Mr Skrunts wrote on 13. Nov 2009 at 20:26: rob in gib wrote on 13. Nov 2009 at 20:01: Simple answer buy 8x 1.5v AA batteries connect them end to end mesure voltage and hey presto 12v then try using them to try and start a your motor  ;) Who is going to forward this to the Brainiacs team then. ::) probably the car wont feel that voltage ;D ;D Most cars actually use 12v  lol  but amps now theres something  :y :y :y :y :y :y

Agreed  ;D ;D ;D :y

8 * 1.5 volt batteries will have microscobic amperes compared to original car battery ;D

get a costco membership, and get around 10 duracel 9v pp3 for 7 or 8 quid ;D

TheBoy wrote on 13. Nov 2009 at 22:16:

get a costco membership, and get around 10 duracel 9v pp3 for 7 or 8 quid ;D

You'll still need about a grand's worth of them to start an Omega. ;D

Kevin

The smaller batterys dont have the amps.
try it with a 12V bulb and see if it works.
not enough power ie amps/watts