Battery specification

[kelv]

Unfortunately I have a Mazda Bongo.
It is a twin battery model ( Northern Japan) and sometimes after being left for a few days it seems to lose charge and needs a jump start.
I am having it checked out for parasitic draw on the battery on Monday,but before then I would like to gain some knowledge about battery spec and price just in case the two I have fitted at present are knackered.
The alternator light is not comong on, so I guess everything is OK in that dept.
Any input welcomed, especially cost and spec details of a couple of suitable batteries.
Thanks

[ScubaBongo]

I'm twin-batt too, and can leave for weeks and still startup. My BMW however, with a new batt, drains itself after about 5 days... I think it's the cheap Lidl/Aldi stereo I fitted in the Beemer.... don't suppose you have one in your Bongo?

[francophile1947]

Why throw good money after bad I wouldn't spend anything on something I hated so much

[kelv]

That's because you are exceptionally clever Frankie

Can't remember saying I hated it

[kelv]

I'm twin-batt too, and can leave for weeks and still startup. My BMW however, with a new batt, drains itself after about 5 days... I think it's the cheap Lidl/Aldi stereo I fitted in the Beemer.... don't suppose you have one in your Bongo?

No, it has a Clarion one.
Maybe that's the problem ...................