Skip to content

BOS LE300 Lithium expansion battery, single block

BOSSKU: 1971300

Price:
Sale price€445,00 EUR

Tax included Shipping calculated at checkout

Shipping in 1-3 working days

Description

The LE300 SMART BATTERY SYSTEM is a lithium upgrade designed to increase the capacity and performance of the lead-acid battery, as well as improve the efficiency and service life of the overall system.

The lithium extension battery handles most of the charging cycles, while the lead-acid battery serves as a low-cost backup. The lead-acid battery is charged with higher priority, with the lithium battery taking over any excess energy. During discharging, the lithium battery is discharged first. This significantly extends the lifespan of the lead-acid battery. The LE300 detects the voltage of the lead-acid battery and automatically begins supporting the lead-acid battery with a maximum current of 12.5 A. Larger loads are supplied by the lead-acid battery and the lithium battery in parallel, placing less current on both batteries.

All advantages at a glance

  • Plug & Play > Simply connect two cables
  • Flexible adjustment of capacity by simply plugging together individual modules.
  • Use of existing lead charge controllers possible.
  • Performance optimization of the battery system through charging priority of the lead battery and preferential discharging of the lithium battery
  • The performance of the lithium battery and the cost advantage of the lead battery are combined.
  • Slim and lightweight design with variable mounting options.
  • Integrated heating system.



Learn more about the benefits of the BOS LE300 battery and read the detailed article on Blauwasser by clicking here.

Available in 4 different variants:
Lithium battery LE300 single module
Lithium battery LE300 2-pack
Lithium battery LE300 block of 4
Lithium battery LE300 6-pack



Technical data

System voltage 12 VDC
Nominal voltage 12.8 VDC
System voltage range 11 – 15 VDC
Number of batteries used in the LE300 IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO4 rechargeable batteries
Nominal lithium capacity 25.6 Ah/328 Wh
Usable lithium capacity 90% (23 Ah/295 Wh)
Number of cycles at room temperature >2000 full cycles
Recommended lead capacity per LE300 (not included) 70 – 125 Ah @ 12 VDC
Recommended lithium/lead capacity ratio (net) 1/3 in solar home systems. Values ​​vary depending on the required autonomy and application.
Continuous charging and discharging current Max. 12.5 A between 5 and 40 °C, current is limited at high and low temperatures.
Battery efficiency >90%
Connections RAST 5/mini Module 4 pin/ communication interface/ external display
Recommended cable diameters 1.5 – 4 mm²
Operating temperature (operation & storage) -20 – 50 °C operating temperature with maximum battery life at 15 -
25 °C. Storage temperature 10 – 30 °C.
Over- and under-temperature protection, heating, charging & discharging The temperature sensor prevents charging the lithium battery at cell temperatures below -5°C or above 55°C. Charging begins as soon as the cell temperature exceeds -5°C. The device has a built-in heating system that activates between cell temperatures of -20°C and 10°C. Discharge is possible between cell temperatures of -10°C and 60°C. For longer battery life, the system operates in pure lead-acid mode at cell temperatures below -10°C.
Battery management BMS Battery management including balancer
Protective functions Overcurrent, overvoltage, short circuits, deep discharge, reverse polarity protection.
Operating mode/Compatible external batteries Any 12 V lead-acid battery and lead-acid charge controller
Max. parallel connections of LE300s By default, a maximum of 24 LE300s can be connected in parallel. Parallel connection of more than 24 units is possible after consultation with the BOS dealer.
Certification & additional tests CE, E1, UN38.3
Vibration test, mechanical shock test, temperature change endurance test


Note: When connecting in series, always pay attention to the permissible maximum system voltage of the solar panel.

Selection of the different variants:
Lithium Battery LE300 Single Module: 12V; 25.6 Ah / 328 Wh, 3.4 kg - Item No. 1971300
Lithium battery LE300 block of 2: 12V; 51.2 Ah / 656 Wh, 6.9 kg - Art. No. 1971301
Lithium battery LE300 block of 4: 12V; 102.4 Ah / 1.31 kWh, 13.7 kg - Art. No. 1971302
Lithium battery LE300 block of 6: 12V; 153.6 Ah / 1.97 kWh, 20.5 kg - Art. No. 1971303

GPSR Information

Hersteller
Name: BOS Balance of Storage Systems AG
Anschrift: Industrial Street 12
PLZ, Ort: 89081, Ulm
Land: Germany
Email: contact@bos-ag.com

Estimate shipping

You May Also Like

last seen