12V 620Ah Lithium Battery Olalitio OLA-12-620-M Under-Seat Bluetooth

Product description

The Olalitio OLA-12-620-M 12V 620Ah Under-Seat Bluetooth Lithium Battery is Olalitio's highest capacity 12 V option for those seeking extreme autonomy with smart control and professional reliability. With 7,936 Wh of usable energy, integrated BMS, and Bluetooth 4.0 monitoring, this under-seat battery (slim metal format) is designed for campers, boats, and off-grid photovoltaic systems that require high continuous consumption for many hours. Its IP62 protection and BMS safety electronics ensure stable operation against overloads, short circuits, and out-of-range temperatures, while its lithium chemistry (Li-ion) delivers a lifespan of over 4,500 cycles at 90% DoD, with a very competitive long-term cost per kWh.

Main features

• Maximum capacity and energy: 620 Ah at 12.8 V (≈7.94 kWh) to power fridges, pumps, electronics, and 12 V inverters for long periods.
• High sustained power: up to 250 A continuous discharge with safety cut-off at 10 V (2,000 ms) to protect the battery.
• Fast and controlled charging: CCCV/IU profile at 14.6 V, with 100 A recommended (maximum 150 A) to reduce recharge times.
• Integrated Bluetooth 4.0: check voltage, current, estimated SOC, and BMS events in real time on your mobile.
• Under-seat format and robustness: compact metal casing with IP62 rating, M8 terminals, and design prepared for vibrations.
• True longevity: >4,500 cycles at 90% DoD; no memory effect and excellent electrical stability.

Advantages or benefits

• Total 12 V autonomy: reduces or eliminates the need to start the engine or generator, improving comfort and quiet on board.
• Active BMS safety: protections against overcharge, overdischarge, overtemperature, and short circuit for peace of mind.
• Smart management: the Bluetooth app helps you avoid deep discharges, detect imbalances, and plan recharges.
• Lighter and more compact than lead-acid: replaces bulky AGM/GEL banks with a single integrated lithium battery.
• Clean installation: under-seat format that makes use of technical spaces and facilitates tidy wiring with M8 terminals.

Purpose or applications

Ideal for camper vans and caravans (fridge, diesel heating, pumps, lighting, and 230 V inverter), marine (onboard services and electronics), and 12 V solar power in shelters, cabins, telecommunications, or backup systems. Its thermal operating range allows use in demanding climates, and its large capacity makes it perfect for extended off-grid stays.

Technical specifications

Compatibilities

Compatible with 12 V MPPT/PWM charge controllers, 230 V chargers with lithium profile (14.6 V), and 12 V inverters. Permitted connection: up to 4 batteries in parallel (series connection not supported). For expansions, use identical units (same brand/model and state of charge), balance them before connecting, and protect each branch with suitable fuses and disconnectors.

The OlaLitio OLA-12-620-M 12V 620Ah Lithium Battery Under-Seat Bluetooth offers maximum capacity, 250 A continuous, app control, and IP62 in a compact format, providing a professional, durable, and safe solution for 12 V mobility and off-grid systems.