SKU: 19329108861

BOS LE300 Lithium Extension Battery - Four Pack

Sale price$885.60 Regular price$984.00
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Description

BOS LE300 Lithium Extension Battery - Four PackCapacity: 112Ah (Useable capacity 101 Ah) 1312 Wh System voltage: 12 VDC Battery: LiFePO4 Lithium Weight: 12. 6 kg Size (each unit): 175 x 229 x 67mm Note: Specification is shown for a single LE300 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

  • Capacity: 112Ah (Useable capacity 101 Ah) | 1312 Wh
  • System voltage: 12 VDC
  • Battery: LiFePO4 Lithium
  • Weight: 12.6 kg
  • Size (each unit): 175 x 229 x 67mm

Note: Specification is shown for a single LE300

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: 19329108861

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4.4 ★★★★★
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A
Verified Purchase
Amy
San Leandro, US
★★★★★ 5
Versatile for any phone size.
Color: BLACK
My husband loves us so much he bought 2. I like how itself adjust to the phone once it's seated.
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Reviewed in the United States on May 15, 2026
J
Verified Purchase
Joe
Louisville, US
★★★★★ 5
Recommend
Color: Black
This a great little phone mount. It works for my iPhone 17 pro max. I drive a lot of dirt roads where I live in the mountains, and the magnet holds up to plenty of bumps without dropping my phone. Easy to install. Pros: -very simple installation -strong magnet -arm rotates for adjustment -ball and socket joint allows tilting with a good amount of resistance to hold its position (when fully tightened) Cons: - for model 3 users, anything other than next to the steering wheel can block a portion of your windshield viewing area -could have more modularity if offered with more arm attachments Conclusion: RECOMMENDED. Very stable and functional mount with a minimalistic design that still allows for some adjustability. If magnet weakens over time, or the sun damages the plastic to the point of breaking from brittleness then I will post updates. I will also update for any modifications I make for more adjustability.
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Reviewed in the United States on April 26, 2026
J
Verified Purchase
Jamie J. Breustedt
Grantham, US
★★★★★ 5
This economical solution works perfectly
Color: Black
Very happy with this car mount. The magnet is plenty strong to securely hold my iPhone in its magnetic loop case. It’s plastic but it’s sturdy and fits on my Model 3’s screen perfectly. It has an adjustable height that I can mount my phone with full clearance of my steering wheel. Don’t waste your money on a metal mount, this inexpensive mount serves the need perfectly.
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Reviewed in the United States on April 22, 2026
A
Verified Purchase
Anthony Jones
Lowell, US
★★★★★ 5
Great for Tesla
Color: Black
Perfect in my Tesla. It’s sturdy and never drops my phone.
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Reviewed in the United States on May 23, 2026
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Verified Purchase
WillB
Whiting, US
★★★★★ 1
Mount presses on the back of the screen Too hard
Color: Black
Waste of time. Doesn’t mount well. The screen shows visible backlight stress from where the mount presses on the back of the screen Returning it same day
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Reviewed in the United States on May 13, 2026

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