Toshiba Introduces SCiB 24V Lithium-Ion Battery Pack for Marine and Industrial Applications

Toshiba Corporation has unveiled its new SCiB 24V lithium-ion battery pack (model P25H20-3), designed to serve as a direct replacement for traditional lead-acid batteries in marine, automotive, and heavy industrial applications. The advanced battery technology promises superior durability, faster charging, and lower environmental impact, catering to demanding operational conditions.

The SCiB 24V pack has already been implemented in Yamaha Motor’s latest electric boat, the e-Float Terrace, which will soon begin sightseeing cruises in Yokohama’s Minato Mirai district. The vessel integrates twenty-four SCiB battery packs to deliver a 48V system with 11.52 kWh of total power, operated through Yamaha’s HARMO electric propulsion system.

Toshiba’s battery pack is built to meet the D23 size specification defined by the Japanese Industrial Standard (JIS D 5301) for starter lead-acid batteries, enabling easy replacement in existing systems. The pack can be configured flexibly—up to two units in series and six in parallel—allowing output up to 48V and a total capacity of 5.76 kWh.

Equipped with Toshiba’s proprietary 20Ah-HP SCiB cells, the battery is capable of handling high-load operations such as engine starts. It targets a wide range of applications including marine vessels, commercial buses, trucks, construction machinery, and agricultural equipment.

According to Toshihiko Takaoka, Vice President of Toshiba’s Battery Division, the SCiB technology is engineered for “exceptional reliability even in harsh environments.” The battery boasts waterproofing certified to IPX9K and IPX7 standards, resistance to vibration, and strong performance in low-temperature conditions—key advantages for heavy-duty and marine operations.

The SCiB battery pack offers several performance benefits over conventional lead-acid systems, including rapid charging, long lifecycle, high input and output efficiency, and a wide operational state-of-charge range. These features collectively reduce maintenance costs and contribute to more sustainable energy use.

Yamaha Motor’s integration of Toshiba’s SCiB system marks a significant move toward cleaner marine transportation. The electric boat project reflects the company’s broader sustainability goals—reducing carbon emissions and promoting environmentally conscious mobility solutions.

Toshiba plans to expand the adoption of its SCiB battery technology across marine, industrial, and mobility sectors while continuing to diversify its energy storage product line. The launch underscores the company’s commitment to delivering reliable, eco-friendly power systems that meet the evolving demands of modern transportation and industry.