This is 1 bad battery at auto zone...vibration resistant and can even mount upside-down...expensive though but so is gas ($189 X 3 for 36 volts)
Optima / 12 Volts, 750 CCA (870 CA) Yellow Top Automotive Dual Purpose Battery with Post and Side Terminals. 12 Month Free Replacement
Part Number: D34-78
Weight: 43.8 lbs
Warranty: 3 YR
Type: Automotive
BCI Group: 3478DT
Jumpstart Assurance: No
Pro Rata Warranty: No
Free Replacement: 3 Year Free
Cold Cranking Amperage at 0°F: 750 Amps
Cranking Amps: 870 Amps
Reserve Capacity: 120 minutes
Length: 10 in.
Width: 6-7/8 in.
Height: 7-13/16 in.
Weight: 43.5 lbs.
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
Features & Benefits:
Non spillable premium AGM technology for starting and deep cycle applications