Bonbo Universal Aluminum Battery Tray for Optima 34/D34 Series — Red/Yellow/Blue Top Compatible, Vibration-Resistant Hold-Down

Bonbo's aluminum universal battery tray secures Optima-style 34 and D34 batteries for safe trunk or relocation mounting.

This relocation tray is a compact, vehicle-mounted solution designed to hold Optima Red, Yellow and Blue top batteries (34/34R/34/78/D34/D34/78/34M/D34M). Built from aluminum alloy with iron components and heavy-duty hardware, the kit gives a flat base, a matching top hold-down and the all-thread fastening needed to lock your battery in place. The base plate and top plate combine with sleeves and nuts to create a rigid assembly that resists corrosion and road vibration while keeping installation straightforward.

How will this tray fit my Optima battery and vehicle?

The tray accepts most Optima 34-series footprints and fits many car and truck battery relocation setups. The aluminum base measures 11.25 inches long by 8.5 inches wide, and with the included thread sleeves it accommodates batteries up to about 10.5" long, 6.95" wide and 6.7" tall. If your battery exceeds the stated height, longer 3/8-16 all-thread rods are required for a proper clamp.

• Base plate dimensions: 11.25" L x 8.5" W
• Compatible battery envelope: ≤10.5" L x 6.95" W x 6.7" H (with sleeves)
• Optional longer 3/8-16 all-thread needed above ~7.4" total battery height
• Fits Optima Red/Yellow/Blue tops in 34 and D34 family

What hardware and parts come in the package?

The kit ships with everything required to assemble the tray and clamp a compatible battery: a flat base plate, a matching top hold-down plate, three pieces of all-thread rod, three thread sleeves, and six nuts that match the threads. These parts work together to form a secure clamp that can be tightened against the battery shell and fixed to your vehicle's mounting surface using appropriate fasteners for the car or trunk floor.

• 1× aluminum base plate and 1× top hold-down plate
• 3× 3/8" all-thread rods for hold-downs
• 3× protective thread sleeves and 6× matching nuts
• Corrosion-resistant aluminum and iron components for longevity

How durable and weather-resistant is this relocation tray?

Materials were chosen for strength and long service life: the base and top are aluminum alloy for reduced weight and corrosion resistance, while iron hardware adds clamping strength. The combination helps resist wear from vibration and exposure in automotive environments, and the parts can be inspected or replaced if exposed to heavy road salt or severe conditions.

• Aluminum alloy base and top for lightweight corrosion resistance
• Iron hardware for extra clamping strength and durability
• Suitable for trunk or engine-bay relocation where space and mounting allow
• Inspect and replace fasteners if used in highly corrosive environments

What should I know before installing this battery tray?

Installation requires basic hand tools and, depending on your vehicle, appropriate fasteners to attach the base to the mounting surface. Measure your battery first to confirm it fits within the tray envelope; if your battery is taller than the included sleeves allow, purchase longer 3/8-16 all-thread rods. Avoid routing cables where they can chafe on the hold-down plate and secure terminals with protective covers after installation.

• Confirm battery length, width and height before ordering
• Provide vehicle-specific bolts to secure the base to the floor or bracket
• Use longer 3/8-16 rods if battery height exceeds included sleeve allowance
• Protect terminals and check cable routing after mounting

Who this is for: This Bonbo tray is aimed at DIY enthusiasts, performance car owners and custom installers who need a compact, reliable mounting solution for Optima-style 34-series batteries. If you relocate a battery to the trunk, race bay or custom compartment and want corrosion-resistant aluminum construction with complete clamping hardware, this kit provides a straightforward, serviceable option. For non-Optima or unusually sized batteries, double-check measurements and hardware lengths before purchasing.