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Lion Energy | UT 3500 BT-H - 280Ah / 3584Wh LiFePO4 - Lithium Battery
Sale price  $1,198.99 Regular price  $2,204.00

Lion UT™ 3500 HTR 12V Battery with Heater, 280Ah (3584Wh) LiFePO4, 12.8V Bluetooth (PRE-ORDER)

Power your off-grid system with the advanced Lion UT™ 3500 HTR 12V Battery with Heater, 280Ah (3584Wh) LiFePO4, 12.8V Bluetooth—Lion Energy’s most powerful and efficient lithium battery yet. Delivering nearly 3x the capacity of the UT 1300 BT-H, this long-lasting powerhouse is ideal for RVs, solar energy systems, emergency backup, and more.

Key Features:

  • Massive 280Ah Capacity
    Get extended power with 280 amp-hours, offering significantly more runtime than standard batteries like the UT 1300 BT-H (105Ah).

  • Built-in Heater for Cold Weather Performance
    Operates reliably even in freezing conditions with an integrated heater that optimizes battery temperature and performance.

  • Smart Bluetooth Monitoring
    Compatible with the Lion Energy Smart App, allowing you to monitor real-time energy usage, input/output levels, and battery health directly from your mobile device.

  • Space-Saving Design
    Despite its high capacity, the battery’s footprint is compact at 13.85" x 7.64" x 12.85", similar to two standard batteries stacked—saving space in your storage bay or system setup.

  • Cost-Efficient Power Solution
    Delivers 24% lower cost per amp-hour compared to purchasing three UT 1300 BT-H batteries—giving you more power, less cost, and fewer connections.

  • Durable and Safe LiFePO4 Chemistry
    Built using high-quality LiFePO4 lithium cells, this battery is designed to last for years, offering safety, deep cycle stability, and minimal maintenance.

  • Weight: 72.31 lbs – robust, yet manageable for installation in mobile or stationary systems.

Specification

UT 3500 BT-H SPECIFICATIONS

Weight: 72.31 lbs.
Dimensions: 13.85" x 7.64" x 7.64" (L x W x H)
Amp Hours (Ah) 280
Max continuous discharge 150A
Max peak discharge 280A (50 sec)
Charge retention 1+ years
Post material Stainless steel
Warranty Lifetime

**SAFETY-INSPECTED CYLINDERS** Ships FREE, Fast, & Insured

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**FULL REGULATORY COMPLIANCE** USA & International

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Guaranteed Purity & Performance

We provide certified gas with 99.9% minimum purity, preventing system contamination and ensuring optimal HVAC function.

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