Lion Energy 12V 280Ah Self-Heated Lithium Battery with Bluetooth

Product Description

Bluetooth Battery with Self-Heating Performance

The Lion Energy UT 3500 BT-H is built for dependable, all-season 12V lithium power for RVs, vans, trailers, solar setups, backup power systems, and other auxiliary applications. With 280Ah of capacity and 3,584Wh of total energy storage, this LiFePO4 battery delivers long-lasting performance in a much lighter package than traditional lead-acid batteries, helping reduce weight while increasing usable power and efficiency. The combination of smart Bluetooth monitoring and self-heating capabilities make this a truly user-friendly lithium battery upgrade. It is designed for serious off-grid and mobile power users who want longer cycle life, low maintenance, faster charging, and better visibility into battery status right from a mobile device. This is auxiliary power done the modern way.

Features & Benefits

• 280Ah Capacity – 3,584Wh of energy for auxiliary power in RV's, vans, trailers, and solar battery applications.
• LiFePO4 Battery Chemistry – Uses lithium iron phosphate for longer service life and stable performance.
• Bluetooth Monitoring – Check battery status from your phone for convenient system monitoring.
• Self Heating – Built-in heater allows battery to be charged in colder temperatures for year-round use.
• High Output – Provides 150A continuous output for high auxiliary loads and inverter systems.
• High Energy Density – Compact replacement for many marine, RV, and commercial equipment applications.
• Long Cycle Life – Rated for 3,500+ cycles at 100% depth of discharge for incredible long-term value.
• Expandable Design – Configure in series or parallel for large battery banks or higher voltage systems.

Note: This is a deep cycle battery and is not designed for engine starting applications.

Lithium Deep-Cycle Battery Durability

Tired of heavy batteries, slow charging, and short service life? The UT 3500 BT-H is the kind of upgrade that makes the rest of your system more capable. It's much lighter than comparable lead-acid options, stores serious energy, and gives you the kind of smart monitoring and cold-weather support that customers expect from a premium lithium battery. Lion Energy has built this battery for real-world auxiliary power use, which makes it a strong fit for RV house power, off-grid solar storage, overland builds, marine accessory loads, and backup energy applications. When you want clean, efficient, long-term 12V lithium performance with more control and less hassle, this battery earns its place.

Why Choose Lion Energy for Your Power Needs

Lion Energy delivers reliable, clean energy solutions built for real-world performance—whether you need dependable backup power at home, portable energy on the go, or a complete off-grid setup. From advanced lithium batteries and high-capacity solar generators to efficient solar panels and expansion-ready power systems, Lion Energy designs every product to work seamlessly together for maximum flexibility and long-term value. You get fast-charging, lightweight, and maintenance-free power backed by safer lithium technology, giving you confidence in every situation—from emergencies and job sites to camping trips and full energy independence. With a focus on sustainability, durability, and user-friendly design, Lion Energy empowers you to take control of your power without compromise—making it an easy choice for anyone serious about reliable, portable, and renewable energy solutions.

Lion Energy Smart App

• Monitor your battery status from your phone.
• See current capacity levels as well as real time incoming and outgoing energy usage.

Lion Energy UT 3500 BT-H Datasheet
Lion Energy UT 3500 BT-H User Guide

Recommended Chargers for the UT 3500 BT-H

Lion Energy 45 Amp Lithium Battery Charger

Battery Tender 26 Amp Battery Charger & Maintainer