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 14 - Aug 19

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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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4.6 ★★★★★
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MM
Louisville, US
★★★★★ 5
Lots of squeakers in this one!
Color: Gator, Size: Large
Our rescue dog is a power chewer so this one doesn't last long, but I still gave 5 stars because it's not advertised for power chewers, so I knew what we were getting when we bought it. So why did I buy this for our dog? The number of squeakers... the dog goes nuts for those and it makes the toy last longer because she will only play with the ones that still squeak.
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Reviewed in the United States on July 18, 2024
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 1
NOT for aggressive chewers!
Color: Lion, Size: Medium
My aggressive chewer had destroyed this in 3 minutes! Chewed off the ears, and chewed apart the body to try to get to the squeaker - it was in the trash 5 minutes after I gave it to him! Yes, the seams are tough, but he easily chewed around them. Don’t buy this if your dog is an aggressive chewer!
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Reviewed in the United States on February 11, 2026
S
Verified Purchase
Susy
Massapequa, US
★★★★★ 4
Somewhat durable.
Color: Elephant, Size: Small
My dog loves these toys, I think it's the squeaker. I've tried several and this elephant one holds up the best.
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Reviewed in the United States on September 28, 2025
V
Verified Purchase
Virginia Girl
Waukegan, US
★★★★★ 3
Not tough enough
Color: Elephant, Size: Small
It might be tough, but my 26 pound dog managed to rip it open in record time! The only good thing, the squeaker is a long plastic one and easier to grab before she can swallow it!
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Reviewed in the United States on February 23, 2026
M
Verified Purchase
Mel A
Grantham, US
★★★★★ 5
Cute and tough!
Color: Elephant, Size: Small
Update Dec 2025, still going! This toy has been the subject of much squeaking and death shakes... And more than one tug o' war... And other than looking a little dingy even after washing it's as good as new! No missing bits, no noticeable damage. I have several in the brand, both the larger version for my mastiff, and other styles for the medium-sized dogs. I started buying online because the one store that carries it moved further away. Outshines all other brands I've tried for durability and fun play. In 5years and 9 dogs only 2 have needed replacement. Worth the price!!!
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Reviewed in the United States on April 21, 2025

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