SKU: 36585716111

BOS LE300 Lithium Extension Battery - Two Pack

Sale price$390.58 Regular price$433.98
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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

BOS LE300 Lithium Extension Battery - Two PackCapacity: 56Ah (Useable capacity 51 Ah) 656Wh System voltage: 12 VDC Battery: LiFePO4 Lithium Weight: 6. 3 kg Size (each unit): 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

  • Capacity: 56Ah (Useable capacity 51 Ah) | 656Wh
  • System voltage: 12 VDC
  • Battery: LiFePO4 Lithium
  • Weight: 6.3 kg
  • Size (each unit): 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: 36585716111

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4.3 ★★★★★
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Ginni P.
Pawtucket, US
★★★★★ 1
UNhappy Customer!
Color: Natural, Size: 6 Panels
Quite honestly I dont normally give poor reviews. I dont normally get poorly made products from Amazon but this time has changed things for me. I will order very little and will especially be mindful of anything made in China! This divider arrived in an intact but wet box. It took me nearly 20 minutes to get it to unfold. The two outside panels flipped out freely but for some reason I had to work to get the other panels to unfold. When it did open, the second panel was clearly damaged. I proceeded to prepare it for return, taped it up securely, requested and received a return label and traveled to the UPS store to return. Wouldn't you know it...UPS shipping charges were $154.00!!! More than I paid for this inferior product. So, if I return on my dollar and hope it makes it to the appointed destination and receive $151.99 for the return cost, I'm out $154.00 and no product to show for it! Its amazing how sellers come up with ways to unload their junk and then prevent satisfied customers by making them pay for the return shipping costs. I opted to keep the junk and consider it a lesson learned. What a scam!
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Reviewed in the United States on May 9, 2026
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Verified Purchase
David Montgomery
Bozeman, US
★★★★★ 5
Great product!
Color: Black - Shelves, Size: 6 Panels, Color: Black - Shelves, Size: 6 Panels
Made well with lightweight material making it easy to move when needed. The style is great for an office backdrop with shelves to decorate. Great addition to my home office.
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Reviewed in the United States on February 3, 2026
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Verified Purchase
Emilly
Los Angeles, US
★★★★★ 5
Great product
Color: Natural, Size: 6 Panels
Absolutely perfect for what I needed, it’s just like the pictures shows and no assembly required!
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Reviewed in the United States on March 21, 2026
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Verified Purchase
Justin
Massapequa, US
★★★★★ 5
Looks great and is steady
Color: Black, Size: 6 Panels
Working great, look great and covers the area I got it for. Thank you!
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Reviewed in the United States on February 26, 2026
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Verified Purchase
Deborah P.
Fort Morgan, US
★★★★★ 2
Disappointing
Color: Natural, Size: 4 Panels, Color: Natural, Size: 4 Panels
I hoped to return this room divider but learned too late it doesn't have free returns. I bought this and another one that didn't have the solid wood on the bottom and had smaller rectangular wooden lattice. The other one looks great. On this one, the backing paper material was very sloppily glued on and has a wrinkled appearance on all four panels. The other screen I purchased was glued properly and the paper is nice and flat and neat looking. I do like the basic design of this, but am pretty disappointed because it looks sloppy and cheap because of the paper. The paper looks yellow in my photo because of lighting, it is white.
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Reviewed in the United States on November 20, 2025

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