SKU: 50711217935

Lion Energy UT 3500 BT-H Lithium Iron Phosphate battery

Sale price$674.55 Regular price$749.50
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Lion Energy UT 3500 BT-H Lithium Iron Phosphate batteryThe Lion Energy UT 3500 BT H battery delivers nearly three times the power of a standard UT 1300 BT H, with 280Ah of long lasting LiFePO cells for reliable, maintenance free energy. Compact yet powerful at 72. 31 lbs, it features a built in heater for cold weather performance, Bluetooth monitoring, and supports series, parallel, or series parallel configurations up to 48V. Ideal for RVs, off grid setups, and high demand backup systems. Features 280Ah

The Lion Energy UT 3500 BT-H battery delivers nearly three times the power of a standard UT 1300 BT-H, with 280Ah of long-lasting LiFePO₄ cells for reliable, maintenance-free energy. Compact yet powerful at 72.31 lbs, it features a built-in heater for cold-weather performance, Bluetooth® monitoring, and supports series, parallel, or series-parallel configurations up to 48V. Ideal for RVs, off-grid setups, and high-demand backup systems.

Features

  • 280Ah / 3,584Wh LiFePO₄ battery with long lifespan
  • Nearly 3X the power of a UT 1300 BT-H
  • Built-in heater for optimal cold-weather performance
  • Continuous discharge 150A, peak 280A (50 sec)
  • 24% lower cost per amp-hour compared to three UT 1300 BT-H batteries
  • LED indicators display charge from 10%–100%
  • Bluetooth® app monitoring via myapp.lionenergy.com
  • Supports series, parallel, or series-parallel up to 48V
  • Maintenance-free and durable
  • Quick reset for low voltage, short circuit, or high temp

Specifications

  • Weight: 72.31 lbs
  • Dimensions: 13.85″ × 7.64″ × 12.85″ (L × W × H)
  • Battery Chemistry: Lithium Iron Phosphate (LiFePO₄)
  • Rated Capacity: 280Ah / 12.8V nominal (3,584Wh)
  • Minimum Capacity: ≥266Ah, ≤2mΩ internal resistance
  • Continuous Discharge: 150A
  • Peak Discharge: 280A (50 sec)
  • Low Voltage Cut-Off: 10.5V safety shutoff
  • Recommended Charging: Standard 45A, Max 140A, Max Voltage 14.6V
  • Operating Temperature: Charging 32–113°F, Discharge −4–131°F
  • Storage Temperature: 14–95°F (45–85% RH)
  • Internal Heater: Auto-heats below 32°F, turns off at 41°F
  • LED Indicators: 1–5 LEDs for 10%–100% charge
  • Configuration: Series, parallel, or series-parallel up to 48V, use 3/8″ eyelets

Other Details

  • Certifications: FCC, UL 1642, RoHS, CE
  • Warranty: Limited lifetime warranty
  • Ideal for high-demand applications, RVs, off-grid solar setups, and backup systems
  • Durable, maintenance-free, and compact for easy installation
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50711217935

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Susan
Lowell, US
★★★★★ 4
Fat pillows
Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow
Super overstuffed pillows. Took some of the batting out, and it was more comfortable. I would buy them again.
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Reviewed in the United States on May 8, 2026
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Samuel Siler
Natrona Heights, US
★★★★★ 5
Pillow
Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow
Kinda lumpy at first but pretty good!
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Reviewed in the United States on May 19, 2026
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Derek
Omaha, US
★★★★★ 5
Pillows
Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow
Pretty decent for the price. Along with its conventional use, those pillows are pretty comfy to sit on. Pillows are for more than just sleeping; they’re excellent seat cushions!
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Reviewed in the United States on June 7, 2026
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gsd12345
Carnegie, US
★★★★★ 1
Lumpy!
Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow, Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow
These are horribly lumpy! The filling clumps. They won’t lay flat. This is after working with them to try to ref, fluff them Terrible product
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Reviewed in the United States on January 13, 2026
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HP
Boise, US
★★★★★ 5
A true medium firm pillow
Size: Queen - Pack of 2, Style: Soft, Configuration: Pillow
I like a medium pillow that lets my head sink in a little bit so my neck isn't cranked at an angle but not to the point where it sinks in completely. You can also scrunch it a little bit. Also love that it's queen size, as most queen sheet sets for come with queen pillow cases, not standard. I am surprised it worked out, very happy with it.
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Reviewed in the United States on May 7, 2026

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