2nd Battery Bracket in 90 Series Prado

Here is some tips on installing a isolater in the 1kz-te Surf, they came with the second battery already there, just run in paralell, it's got a photos and instructions, the only diff to this and yours is you have to put the bracket and battery in as well.
Surf Isolator instructions

Tim

Fit it on the passenger side behind the headlight as that is where the V6 version sits. Buy a battery tray base & screw it to the place already provided & then buy the Toyota battery mounting bracket - approx $45 for the passenger side & it will fit in perfect.

Cheers

Darryl

Tim
Have done this exercise, your second battery when fitted to the l/h side of the vehicle is a virtually mirror image of your present battery installation.
Cost for bolts, nut, carrier came to the grand total of $48.40.
The shock part was $56 for a bleep y plastic battery tray which i baulked at !
Used some thin hi density rubber cut to the appropriate size to go under battery.
Have used identical batteries (exide extremes) for swapability and piranah mk2
dual battery controller - so far so good.