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Summary of Contents for BOS LE300
- Page 1 User Manual Version No. 98803201 Release date: August 2018; Revision 12 BOS BAL ANCE OF STORAGE SYSTEMS AG / BEIM MÜHLBACH 3 / 89171 ILLERKIRCHBERG / GERMANY PHONE: +49 (0) 731 72 54 41 07 / MAIL: CONTACT@BOS-AG.COM / WEB: WWW.BOS-AG.COM...
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Page 2: Table Of Contents
RECYCLING INFORMATION Package Contents • User manual • Device LE300 Lithium Extension Battery Art. No. 12000001 • Power cable connector RAST 5 with 20 cm cable and 2x WAGO clamp Art. No. 97904600 • Spare part fuse KFZ-Mini 20 A (1x) Art. No. 96915600 Optional accessories •... - Page 3 12 V lead acid batteries. Just stack them in parallel to meet your specific system specs. As all BOS AG hybrid battery systems, the LE300 Lithium Exten- sion Battery takes most of the charging cycles while the lead acid battery provides inexpensive backup capacity.
- Page 4 • Keep the LE300 not being used away from paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery-pack terminals together may cause burns or a fire.
- Page 5 • Check the recycling information at the end of the user manual for disposal of device. Application Scope • The primary application of the LE300 is the stationary storage of renewable energy in the area of solar energy. • This device is for residential, recreational & small commercial operations.
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Page 6: Technical Specifications
2. TECHNICAL SPECIFICATIONS System voltage 12 VDC Nominal voltage 12.8 VDC Voltage range 11 – 15 VDC Battery packs used in LE300 IFpR/26/65 [8p/4s] E/-20NA/95 LiFePO rechargeable battery Nominal lithium capacity 25.6 Ah/328 Wh Usable lithium capacity 90 % (23 Ah/295 Wh) Numbers of cycles at room temprature >2000 complete cycles... - Page 7 Packs can be connected in parallel with each other (see exemplary parallel combination in the table below). Max. parallel LE300s In standard version, a maximum of 24 LE300 can be connected only in parallel, higher quantities possible after consulting BOS partner. Exemplary Parallel parallel combination Qt.
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Page 8: Overview
3. OVERVIEW State-of-charge-trend-display and torchlight Push button Mounting shape for standard lead acid mounting clamp Holes for mechanical parallel mounting/mounting on mounting plate (optional) Cable connector plugs Cable strain relief connectors... -
Page 9: System Functions
Therefore, in charging & discharging phases the LE300 is supporting the lead acid battery. The current is limited to about 12.5 A per device, for instance 4x LE300 can thus together support the lead acid battery with up to 50 A. Currents higher than the... - Page 10 If one of the Li-cells falls under deep discharge, caused by self-discharge, the LE300 goes into a deep sleep mode. In this mode, the LE300 can only be woken up by pressing the push button or by recharging the device (this is checked every four mins automatically).
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Page 11: Installation
Please note that a standard lead acid battery charge controller is nee- ded. No special additional charge controller is needed for the LE300. It is impor- tant to choose the right size of connection cable, depending on the maximum currents. - Page 12 The picture above is a basic visualization of the system connection, details on the electrical connection are explained in the following:t RAST 5 LEAD ACID Fuse Communication Communication DISPLAY IN/OUT interface interface to lead to lead 20 A Optional to Optional to Optional to acid...
- Page 13 RAST 5 (code 00E) power connector . Therefore, use the supplied plug con- nector, fix cables to it, plug it to the back of the LE300 at the power connector..and mount the other side of the cables to your lead acid battery. Pay attention to...
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Page 14: Commissioning
6. COMMISSIONING Once mechanical and electrical connection is done according to chapter 5, the LE300 will automatically start working and supporting the lead acid battery sys- tem. Please push the pushbutton of LEs to check the status of the products (see details in chapter 7). -
Page 15: Display & Operation
Once the push button is released, the device shows the state of charge: Green LED indicates, that the LE300 is fully char- ged, SOC > 80 % (SOC = State of charge). Green and yellow LED indicates, that the LE300 is... -
Page 16: Troubleshooting And Faq
Yellow LED indicates, that the LE300 is half-full, SOC between 41 – 60 %. Yellow and red LED indicates, that the LE300 is at low SOC between 21 – 40 %. Red LED indicates, that SOC is between 0 – 20 %. -
Page 17: Maintenance
Why is there no voltage at the power connector of the LE? As long as the LE300 is not connected to a lead acid battery, the power connec- tor of the LE300 is deactivated. In order to use the LE300, connect it to a 12 V lead acid battery. -
Page 18: Storage
10. STORAGE The LE300 has been designed to last at least ten years of normal use. If the product is stored for a long period of time, please recharge the device every six month. Therefore, connect the system to either a photovoltaic (PV) module or to a direct current (DC) power source (in each case the usage of a lead acid charge controller is mandatory). -
Page 19: Warranty & Legal Notes
12. WARRANTY & LEGAL NOTES Warranty The LE300 Lithium Extension Battery come with a two-year warranty on the pro- duct including the integrated lithium battery starting from the date of purchase. There is no warranty granted on other system components from other manufac- turers that are used together with the LE300 Lithium Extension Battery. -
Page 20: Recycling Information
Do not dispose in waste bin, but recycle electronics, batteries and packaging materials according to local regulations. Tape or mask off the contact surfaces of the LE300 terminals with adhesive tape before disposing of the device. For more information, please contact your BOS dealer or BOS Balance of Storage Systems AG.
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