Two batteries, cast together, in a case with a strap across them.
WIRING INFORMATION FOR 12V BATTERIES:
Parallel Wiring - This retains the voltage at 12VDC but doubles the ampacity of one battery. This gives you more 'cranking' amps for drag racing or an RV.
Series Wiring - This doubles the volts to 24VDC and retains the ampacity of one battery. This is more common for higher voltage vehicles like golf carts.
Resin, by VCG Resins, 1/25 scale.