Tomioka Racing 15 lb 12V AGM Battery 465 CCA - Lightweight Power

In this review of the Tomioka Racing TR-B1500 battery, the bottom line is simple: it is for drivers who need a compact, lighter-weight 12V battery that still delivers solid starting power. The reviewer found the TR-B1500 best suited to 4-cylinder cars and racing builds where saved weight matters, because at 15 lbs it adds minimal mass while offering 465 CCA and reliable AGM construction. For anyone replacing a larger factory battery or fitting battery relocation kits, the TR-B1500 balances size, power and mounting flexibility in a way worth considering.

Key Features

• Compact dimensions: At 6.9 in x 3.5 in x 6.2 in the battery fits small trays and tight engine bays where space is limited.
• Lightweight design: Weighing 15 lbs (6.8 kg) it reduces vehicle weight compared with many standard batteries, which helps handling and weight-sensitive applications.
• Strong cold-cranking: Rated 465 CCA, it provides dependable starting power in a variety of conditions for smaller engines.
• AGM technology: The absorbed glass mat construction improves specific power and allows more flexible mounting positions than a conventional flooded battery.
• Versatile terminals: High quality brass SAE terminals are included and accept vertical or horizontal terminal orientation for easier installation.
• Reserve capacity: Offers 17.5 amp/hour reserve to maintain accessories and provide reserve energy when needed.

Who It's For

The TR-B1500 is aimed at owners of 4-cylinder cars, track-day racers, and drivers who want to shave unsprung or overall vehicle weight without sacrificing starting reliability. It is also appropriate for custom builds where battery relocation or tight engine bay packaging is required, since the battery accepts multiple mounting orientations.

Drivers who rely on very high electrical loads, large-displacement engines, or who require extremely long reserve durations should consider larger capacity batteries; similarly, vehicles with heavy accessory loads or frequent deep discharge cycles may be better served by a higher amp/hour unit.

Pros & Cons

Pros

• Very light at 15 lbs, making it a good choice for weight-conscious builds and racing applications.
• Compact footprint fits tight trays and small engine compartments without major modification.
• AGM construction and brass SAE terminals provide durable, high-stress performance and flexible mounting.
• 465 CCA is sufficient for reliable starting on most small to mid-size gasoline engines.

Cons

• Reserve capacity and amp/hour rating are moderate (17.5 Ah), so drivers with heavy electrical demands may need a larger battery.
• Not intended as a heavy-duty replacement for larger engines that require higher CCA or capacity.

Specifications

Brand	Tomioka Racing
Model / Type	TR-B1500 12V AGM
Weight	15 lbs / 6.8 kg
Dimensions	6.9 in x 3.5 in x 6.2 in (176mm x 89mm x 158mm)
Voltage	12 V (full charge 13.8 V)
Cold Cranking Amps	465 CCA
Reserve	17.5 amp/hour

Our Verdict

The Tomioka Racing TR-B1500 is a practical choice for drivers who need a compact, lightweight 12V battery without sacrificing dependable starting power. Its AGM construction and flexible terminal options make it good value for race-oriented builds and small-engine vehicles, though anyone needing extended reserve capacity or very high CCA should choose a larger unit.

Frequently Asked Questions

Can this battery be mounted on its side?
Yes. The AGM design and included terminal hardware allow the battery to be mounted in a variety of positions and accept terminals vertically or horizontally.

Is 465 CCA enough for daily driving?
For most 4-cylinder and moderate-size engines, 465 CCA provides reliable starting; larger engines may require higher CCA.

Does it come with terminals?
Yes. Each battery includes high quality brass SAE terminals suited for high-amperage and racing or audio applications.