SKU: 60518471470

BOS LE300 Lithium Extension Battery

Sale price$7402.50 Regular price$8225.00
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

BOS LE300 Lithium Extension BatteryCapacity: 28Ah (Useable capacity 25. 2 Ah) 328 Wh System voltage: 12 VDC Battery: LiFePO4 Lithium Weight: 3. 4 kg Size: 175 x 229 x 67mm Works with any lead acid battery and any application LE300 Smart Battery System can be used wherever a 12 V classic lead acid battery needs to be extended. The scope and application of the LE300 is such that customers often inspire us with new ideas and possible application areas. Right from solar home systems in

  • Capacity: 28Ah (Useable capacity 25.2 Ah) | 328 Wh
  • System voltage: 12 VDC
  • Battery: LiFePO4 Lithium
  • Weight: 3.4 kg
  • Size: 175 x 229 x 67mm

Works with any lead-acid battery and any application

LE300 Smart Battery System can be used wherever a 12 V classic lead-acid battery needs to be extended. The scope and application of the LE300 is such that customers often inspire us with new ideas and possible application areas. Right from solar home systems in Africa to mobile homes and boats in Europe LE300 has touched every kind of storage application you can ever think of!

Lithium for cycling. Lead-acid for basic load.

In pure lead-acid systems batteries often fail within one to three years as batteries get damaged by continuous operation at low state of charge. Pure lithium systems perform way better and show longer lifetimes but are expensive and complicated to install. LE300 Smart Battery System turns your lead-acid system into a lithium system with special features. And the best thing about it: It only takes a few minutes to install before it can make a real impact in your storage system.

Charging & Discharging Cycle

With the LE300 hook up the lead-acid battery is kept fully charged while the cycle-resistant lithium battery takes on most charging cycles and is preferentially discharged under load. The capacity and the performance of both batteries are used optimally so you can look forward to a better performance and a longer life span of your batteries.

Longer Battery Lifetime. At Low Costs

The lithium battery takes most of the charging cycles while the lead-acid battery provides inexpensive backup capacity. The lead-acid battery is charged with higher priority while the lithium battery takes all surplus energy. This process helps to increase the lead-acid battery lifetime to up to ten years.

Robust housing for automobile. Protected against bad terrains

An elegant design and robust housing keeps the lithium batteries safe even when you are driving off-road or bad roads. Thanks to an optimised sizing and variable fixing possibilities the modules fits even in smallest of the corners. Each module is E1 certified which allows them to be installed in automobiles as well.

Please note that the LE300 is not waterproof and will need a waterproof casing (battery box) if installed in a wet/damp environment.

Easy to scale up. All your needs are covered

LE300 modules can be easily stacked together to meet your individual energy storage needs. Up to 24 (7.8kWh lithium capacity) of them on top of your present or new lead acid battery. As mentioned all your needs are covered!

Retrofit or extend your lead acid battery. Hybrid technology

LE300 Smart Battery System can be connected to any new or existing 12V lead-acid battery. Thanks to the intelligent design no additional charge controller or electrical wiring changes are needed.

Low temperature resistance. Works with any climate

All LE300 modules have an integrated cell-heater so the lithium batteries are protected against cold temperatures and perform without any energy losses. At low outside temperatures the heating can increase the cell temperature by 5 to 10 degrees Celsius.

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: 60518471470

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Jennifer Greenwood
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★★★★★ 5
Light &fluffy!!
Color: Pink Striped, Size: Queen
Beautiful!! Pretty salmon color! Light & fluffy! It’s doesn’t make me overheat but still keeps me warm in this winter weather. It was inexpensive so I didn’t expect much but was pleasantly surprised with its quality.
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Reviewed in the United States on December 18, 2025
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Steve D.
West Palm Beach, US
★★★★★ 5
Great Value and Good Quality RV Queen-sized Comforter Set
Color: Beige Striped, Size: Full
We needed a smaller comforter for our RV bed to limit overhang and this one seemed like a good fit and we were right. The print is conservative and modern in appearance. The feel and thickness are perfect for our typical use in a warm weather state that we camp in year round. Last trip out it got pretty cold overnight and we let our dog sleep on our bed. When we returned home we washed it for the first time. I held my breath to see what condition it would be in afterwards and it came out in great condition. While we were using it, we noticed the weight, texture and comfort were all where we needed it to be and therefore we would recommend this if you needed an RV Queen sized comforter without breaking the bank.
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Reviewed in the United States on January 7, 2026
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Lexie
Dallas, US
★★★★★ 5
Great comforter for the price
Color: Beige Striped, Size: California King
Nice comforter for the price. It looks great on the bed, feels soft, and keeps us warm without being heavy. If you’re looking for a weighted or very thick comforter, this isn’t it, but for a lightweight option it does the job well. We have a split California King Sleep Number (two Twin XL bases) and I ordered the California King size. It fits, but the side drop is pretty short. Next time I would go with an oversized King or oversized California King for better coverage. Bonus: no weird chemical smell when I opened the package, which is always a win.
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Reviewed in the United States on February 17, 2026
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kristina
Alexandria, US
★★★★★ 4
Takes a few rounds in the dryer but it’s a rly nice comforter
Color: Pink Striped, Size: Queen
It’s big and comfy and warm but it takes a few rounds in the dryer
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Reviewed in the United States on January 18, 2026
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Maryann
Cuba, US
★★★★★ 5
Love it!
Color: Pink Striped, Size: King
It’s really soft and comfortable.
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Reviewed in the United States on May 6, 2026

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