Lithium Extension Batteries
Lithium Extension Batteries have revolutionized the camping experience by providing reliable power sources for campervans. But what exactly are these batteries, and how do they work? Let's dive into a technical explanation of Lithium Extension Batteries in campervans.
What are Lithium Extension Batteries?
Lithium Extension Batteries, also known as auxiliary batteries or secondary batteries, are additional power units installed in campervans to supplement the vehicle's primary battery. These batteries are primarily designed to power onboard accessories and appliances such as lights, refrigerators, heaters, and other electronics without draining the campervan's main (starter) battery and can be easily added to any traditional Lead Acid charging system.
The term 'Lithium' in Lithium Extension Batteries refers to the type of technology used in these batteries, which is Lithium-ion. Lithium-ion batteries are known for their lightweight properties, high energy density, and ability to recharge quickly and efficiently compared to traditional lead-acid batteries.
How Do Lithium Extension Batteries Work in Campervans?
In a campervan setup, the Lithium Extension Battery is connected to the vehicle's electrical system. When the campervan's engine is running, the vehicle's alternator charges both the primary and the extension battery. Some campervans also feature solar panels for an additional or alternative charging method.
Once the engine is turned off, the power to the accessories and appliances is drawn from the Lithium Extension Battery, preserving the main battery's charge for essential functions, such as starting the engine. This setup allows campers to use electrical appliances even when the vehicle is stationary for extended periods.
6 Products Found
£435.99
BOS LE300 Lithium Extension Battery
BOS LE300 Smart Battery System is a fully scalable solution to enhance performance and upgrade capacity of lead-acid batteries in solar or any applications with storage needs. They can be used with new or existing 12 V lead-acid battery systems. Easy to install, by simply connecting the LE300 in parallel to lead-acid batteries. Its capacity is very flexible and can be increased by just stacking multiple LE300 in parallel until the requirements of the system are met.
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.
System Voltage
12 VDC
Norminal Voltage
12.8 VDC
Voltage Range
11-15 VDC
Battery Packs Used in LE300
IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO4 rechargeable battery
Nominal Lithium Capacity
28Ah / 358 Wh
Usable Lithium Capacity
90% (25.2 Ah / 358 Wh)
Number of Cyclles at Room Temperature
>3,000 Complete Cycles
Continuous Charging Current
Max 12.5 A (between 5 & 40°C, At higher & lower tempratures current is limited)
Battery Efficiency
> 90%
Housing Dimensions
175 x 229 x 67 mm
Weight
3.4 Kg
Recommended Wire Size
1.5 - 4 mm²
Ambient Tempreture (Operating & Warehousing)
-20 - 50°C Ambient Temperature with:
Max Battery Life at 15 - 25°C
Warehousing temperature: 10 - 30°C
Low & High Temperature Protection
Temp sensor prevents lithium battery charge under -5°C or above 55°C
Heating, Charging & Discharging
Charging starts once cell temp is higher than -5°C
Device has an integrated heating that is active between -20°C and 10°C cell temp.
Discharge possible between -20°C and 60°C cell temp.
At cell temp below -20°C and over 60°C system is running in pure lead acid mode for higher battery lifetime
Lithium Cell Balancing
Battery management inclusive balancer
Protection Features
Overcurrent, Overvoltage, Short Circuit, Deep Discharge, Wrong Polarity Protection
Operation Mode / Compatible External Batteries
Works in combination with any 12 V Lead Acid Battery & Lead Acid Charge Controller
Connection Possibilities
Packs can be connected in parallel with each other
Maximum Parallel LE300's
In Standard Version, a maximum of 24
The LE300 Can be connected only in parallel, higher quantities possible after consulting BOS partner.
Note: Specification is shown for a single LE300
Datasheet
Manual
...Read more
View Product
£36.99
BOS LE300 Extension Kit - Large (Couples 4 / 6 Modules)
Large Mechanical Pack Extension Kit. Contains all fixings and data cables to join 4 or 6 BOS LE300 Lithium Extension batteries together.
Contains
4 x 340mm M4 Threaded Rod For 6 Modules
4 x 221mm M4 Threaded Rod For 4 Modules
8 x Torx TX20 M4 x 10mm Sleeve Nut
6 x 3.5 x 150mm Nylon Black Cable Ties
2 x Communication Cable for Parallel Connection
Large Mechanical Pack Extension Kit. Contains all fixings and data cables to join 4 or 6 BOS LE300 Lithium Extension batteries together.
...Read more
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£19.99
BOS LE300 Extension Kit - Small (Couples 2 Modules)
Small Mechanical Pack Extension Kit. Contains all fixings and data cables to join two BOS LE300 Lithium Extension batteries together.
Contains
4 x 102mm M4 Threaded Rod For 2 Modules
8 x Torx TX20 M4 x 10mm Sleeve Nut
2 x 3.5 x 150mm Nylon Black Cable Ties
1 x Communication Cable for Parallel Connection
Small Mechanical Pack Extension Kit. Contains all fixings and data cables to join two BOS LE300 Lithium Extension batteries togeather.
...Read more
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Out of Stock
£1,729.99
BOS LE300 Lithium Extension Battery - Four Pack
BOS LE300 Smart Battery System is a fully scalable solution to enhance performance and upgrade capacity of lead-acid batteries in solar or any applications with storage needs. They can be used with new or existing 12 V lead-acid battery systems. Easy to install, by simply connecting the LE300 in parallel to lead-acid batteries. Its capacity is very flexible and can be increased by just stacking multiple LE300 in parallel until the requirements of the system are met.
Four Pack - Contains 4 x LE300 Lithium Extension Batteries.
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
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.
Datasheet
Manual
BOS LE300 Technical Specifications
X
System Voltage
12 VDC
Norminal Voltage
12.8 VDC
Voltage Range
11-15 VDC
Battery Packs Used in LE300
IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO4 rechargeable battery
Nominal Lithium Capacity
28Ah / 358 Wh
Usable Lithium Capacity
90% (25.2 Ah / 358 Wh)
Number of Cyclles at Room Temperature
>3,000 Complete Cycles
Continuous Charging Current
Max 12.5 A (between 5 & 40°C, At higher & lower tempratures current is limited)
Battery Efficiency
> 90%
Housing Dimensions
175 x 229 x 67 mm
Weight
3.4 Kg
Recommended Wire Size
1.5 - 4 mm²
Ambient Tempreture (Operating & Warehousing)
-20 - 50°C Ambient Temperature with:
Max Battery Life at 15 - 25°C
Warehousing temperature: 10 - 30°C
Low & High Temperature Protection
Temp sensor prevents lithium battery charge under -5°C or above 55°C
Heating, Charging & Discharging
Charging starts once cell temp is higher than -5°C
Device has an integrated heating that is active between -20°C and 10°C cell temp.
Discharge possible between -20°C and 60°C cell temp.
At cell temp below -20°C and over 60°C system is running in pure lead acid mode for higher battery lifetime
Lithium Cell Balancing
Battery management inclusive balancer
Protection Features
Overcurrent, Overvoltage, Short Circuit, Deep Discharge, Wrong Polarity Protection
Operation Mode / Compatible External Batteries
Works in combination with any 12 V Lead Acid Battery & Lead Acid Charge Controller
Connection Possibilities
Packs can be connected in parallel with each other
Maximum Parallel LE300's
In Standard Version, a maximum of 24
The LE300 Can be connected only in parallel, higher quantities possible after consulting BOS partner.
Note: Specification is shown for a single LE300
...Read more
£869.99
BOS LE300 Lithium Extension Battery - Two Pack
BOS LE300 Smart Battery System is a fully scalable solution to enhance performance and upgrade the capacity of lead-acid batteries in solar or any applications with storage needs. They can be used with new or existing 12 V lead-acid battery systems. Easy to install, by simply connecting the LE300 in parallel to lead-acid batteries. Its capacity is very flexible and can be increased by just stacking multiple LE300 in parallel until the requirements of the system are met.
Twin Pack - Contains 2 x LE300 Lithium Extension Batteries.
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.
BOS LE300 Technical Specifications
X
System Voltage
12 VDC
Norminal Voltage
12.8 VDC
Voltage Range
11-15 VDC
Battery Packs Used in LE300
IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO4 rechargeable battery
Nominal Lithium Capacity
28Ah / 358 Wh
Usable Lithium Capacity
90% (25.2 Ah / 358 Wh)
Number of Cyclles at Room Temperature
>3,000 Complete Cycles
Continuous Charging Current
Max 12.5 A (between 5 & 40°C, At higher & lower tempratures current is limited)
Battery Efficiency
> 90%
Housing Dimensions
175 x 229 x 67 mm
Weight
3.4 Kg
Recommended Wire Size
1.5 - 4 mm²
Ambient Tempreture (Operating & Warehousing)
-20 - 50°C Ambient Temperature with:
Max Battery Life at 15 - 25°C
Warehousing temperature: 10 - 30°C
Low & High Temperature Protection
Temp sensor prevents lithium battery charge under -5°C or above 55°C
Heating, Charging & Discharging
Charging starts once cell temp is higher than -5°C
Device has an integrated heating that is active between -20°C and 10°C cell temp.
Discharge possible between -20°C and 60°C cell temp.
At cell temp below -20°C and over 60°C system is running in pure lead acid mode for higher battery lifetime
Lithium Cell Balancing
Battery management inclusive balancer
Protection Features
Overcurrent, Overvoltage, Short Circuit, Deep Discharge, Wrong Polarity Protection
Operation Mode / Compatible External Batteries
Works in combination with any 12 V Lead Acid Battery & Lead Acid Charge Controller
Connection Possibilities
Packs can be connected in parallel with each other
Maximum Parallel LE300's
In Standard Version, a maximum of 24
The LE300 Can be connected only in parallel, higher quantities possible after consulting BOS partner.
Note: Specification is shown for a single LE300
Datasheet
Manual
...Read more
View Product
£2,499.00
BOS LE300 Lithium Extension Battery - Six Pack (156ah)
BOS LE300 Lithium Extension Battery - Six Pack (156ah)
BOS LE300 Smart Battery System is a fully scalable solution to enhance performance and upgrade capacity of lead-acid batteries in solar or any applications with storage needs. They can be used with new or existing 12 V lead-acid battery systems. Easy to install, by simply connecting the LE300 in parallel to lead-acid batteries. Its capacity is very flexible and can be increased by just stacking multiple LE300 in parallel until the requirements of the system are met.
Six Pack - Contains 6 x LE300 Lithium Extension Batteries.
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.
BOS LE300 Technical Specifications
X
System Voltage
12 VDC
Norminal Voltage
12.8 VDC
Voltage Range
11-15 VDC
Battery Packs Used in LE300
IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO4 rechargeable battery
Nominal Lithium Capacity
28Ah / 358 Wh
Usable Lithium Capacity
90% (25.2 Ah / 358 Wh)
Number of Cyclles at Room Temperature
>3,000 Complete Cycles
Continuous Charging Current
Max 12.5 A (between 5 & 40°C, At higher & lower tempratures current is limited)
Battery Efficiency
> 90%
Housing Dimensions
175 x 229 x 67 mm
Weight
3.4 Kg
Recommended Wire Size
1.5 - 4 mm²
Ambient Tempreture (Operating & Warehousing)
-20 - 50°C Ambient Temperature with:
Max Battery Life at 15 - 25°C
Warehousing temperature: 10 - 30°C
Low & High Temperature Protection
Temp sensor prevents lithium battery charge under -5°C or above 55°C
Heating, Charging & Discharging
Charging starts once cell temp is higher than -5°C
Device has an integrated heating that is active between -20°C and 10°C cell temp.
Discharge possible between -20°C and 60°C cell temp.
At cell temp below -20°C and over 60°C system is running in pure lead acid mode for higher battery lifetime
Lithium Cell Balancing
Battery management inclusive balancer
Protection Features
Overcurrent, Overvoltage, Short Circuit, Deep Discharge, Wrong Polarity Protection
Operation Mode / Compatible External Batteries
Works in combination with any 12 V Lead Acid Battery & Lead Acid Charge Controller
Connection Possibilities
Packs can be connected in parallel with each other
Maximum Parallel LE300's
In Standard Version, a maximum of 24
The LE300 Can be connected only in parallel, higher quantities possible after consulting BOS partner.
Note: Specification is shown for a single LE300
BOS LE300 Datasheet
BOS LE300 User Manual
...Read more
View Product
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