running 2 batteries Options

[yellowchinaman]

I've seen people having an extra car battery in the boot for the extra ICE they have.
I am thinking of installing a small extra battery in the arm rest to boost the power of my existing racing battery.
Question is, what is the proper way or doubling a battery and is there a problem with mixing different battery types and size? For instance, can I add a small 12v motorcycle battery with the 12V car battery?

[yellowchinaman]

Ok. So im struggling to find a battery which cranks out
60Ah
500A+ cca
And thinner then 80mm
being sold in the uk.

So another thought. Can I buy 2 motorcycle battories which are smaller and easier to hide int he boot instead?
Or even make my own battery by wiring a series of cells? If so what cells and where?

This post has been edited by yellowchinaman: Mar 20, 2014 - 3:47 AM

[Special_Edy]

Ok. So im struggling to find a battery which cranks out
60Ah
500A+ cca
And thinner then 80mm
being sold in the uk.

So another thought. Can I buy 2 motorcycle battories which are smaller and easier to hide int he boot instead?
Or even make my own battery by wiring a series of cells? If so what cells and where?

Ultracapacitor cells.
There is a video of a guy who used 6 D-cell sized capacitors in place of a battery. He has several videos chronicling his progress.
https://www.youtube.com/watch?v=8miq6sDy0wA...be_gdata_player

It wont store very much energy but it has far more cranking amperage than any type of battery. Capacitors are able to fully charge or discharge in fractions of a second because they actually store electrons instead of converting electricity into chemical storage. You may only get a matter of seconds worth of cranking though depending on how many Farads the caps are.

This post has been edited by Special_Edy: Mar 20, 2014 - 4:03 PM

[yellowchinaman]

Ok. So im struggling to find a battery which cranks out
60Ah
500A+ cca
And thinner then 80mm
being sold in the uk.

So another thought. Can I buy 2 motorcycle battories which are smaller and easier to hide int he boot instead?
Or even make my own battery by wiring a series of cells? If so what cells and where?

Ultracapacitor cells.
There is a video of a guy who used 6 D-cell sized capacitors in place of a battery. He has several videos chronicling his progress.
https://www.youtube.com/watch?v=8miq6sDy0wA...be_gdata_player

It wont store very much energy but it has far more cranking amperage than any type of battery. Capacitors are able to fully charge or discharge in fractions of a second because they actually store electrons instead of converting electricity into chemical storage. You may only get a matter of seconds worth of cranking though depending on how many Farads the caps are.

DUDE! Thats perfect! Funny enough my friend told me to do the same thing but needed a power management system like what this guy was saying in the end.
Thanks