WESTECH 4258 Page 3 Instructions For Use Manual Download

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Installation of the battery

�.� Veriﬁcation

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�.� The installation conditions

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�.� Debug

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�.� Protection against short circuits

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�.� Charging the battery before use

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�.� Maintenance

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�.� Storage

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�.� Transportation

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Use of the battery

�.�  Charge and discharge
�.�  Charging voltage
�.�  Cell voltage to « allow discharge »

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�.� Minimum temperature to « allow charging »

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�.� Conditions for series and parallel connection

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Technical Support

Summary of Contents for 4258

Page 1: ...Instructions for Use LiFePO4 Batterie SMART BMS SERIE 12 8V Westech Solar Energy GmbH Robert Bosch Str 11 85748 Garching info westech energy com www westech energy com 49 0 89 89545770 ...

Page 2: ...order to avoid possible damage when using your battery Any damage that may be caused by disregard of the instructions will not be covered by our warranty and we decline any responsibility Product description General information Product characteristics BMS Battery Management System Safety rules General rules Identiﬁcation Eliminaion Important notes 1 ...

Page 3: ...n against short circuits Charging the battery before use Maintenance Storage Transportation Use of the battery Charge and discharge Charging voltage Cell voltage to allow discharge Minimum temperature to allow charging Conditions for series and parallel connection Technical Support 2 ...

Page 4: ...ry LiFePO is the safest type of conventional lithium bat tery The nominal voltage of the LiFePO battery is V but the lead battery is V Therefore a V LiFePO battery consists of four batteries connected in series Westech LiFePO batteries can directly store more than of the energy supplied Available capacity is fully used with the same output voltage The dimensions of the case are identical to the mo...

Page 5: ...s protected from improper handling It switches the battery in case of undervoltage or overload and turns on automatically as soon as the problem is ﬁxed Battery Charging It does not need to wait for the battery to be fully charged The Westech LiFePo battery charges up to times faster than conventional lead batteries Existing charge controllers or chargers can also be used in the installation Areas...

Page 6: ...st lithium LiFePO technology Lithium iron phosphate no gas no danger of explosion or ﬁre No need maintenance Long service life Maximum service life with more than cycles even with regular deep discharge High discharge current High discharge performance without voltage drop for large consumers such as coﬀee ma chines and air conditioning systems Light weight Up to weight savings compared to lead ac...

Page 7: ...ctronic system allowing the control and the charge of the diﬀerent elements of a storage battery The BMS built into each battery ensures that the battery is protected from improper handling It switches the battery in case of undervoltage or overload and turns on automatically as soon as the problem is ﬁxed The important signiﬁcance of a battery management system BMS Important facts A LiFePO cell b...

Page 8: ... low cell voltage After a cut oﬀ due to a low cell voltage a reserve capacity of approximately Ah per Ah of battery capacity remains in the battery The battery will be damaged if the remaining reserve capacity is removed from the battery A residual current of mA for example can damage a Ah battery if the system is left in the discharged state for a long period Protection of the cell against overvo...

Page 9: ...ollow the instructions on the battery and in the user manual Fire open light and smoking prohibited Avoid sparks when handling cables and short circuits Warning Follow the instructions Note the temperature Not waterproof This product or parts of this product may be recycled Conformity mark Work on the LiFePO lithium battery should only be carried out by a specialist Make sure to ﬁx it correctly an...

Page 10: ...turned to the manufacturer Batteries are not allowed in household or industrial waste Elimination Installation of the battery Important notes Never expose to direct sunlight Protect from heat The LiFePO battery should always be dry and kept clean if possible Avoid any type of damage such as falling drilling or similar damage Risk of short circuit Note the positive and negative poles on the LiFePO ...

Page 11: ...move back and forth during use tension the strap Debug Due to variations in operating temperature and charge discharge rate the cycle capacity may be diﬀerent from the nominal capacity Do not disassemble the battery Parallel and series are acceptable depending on the battery In parallel it can accept parallels In series it can accept up to series The series and parallel structure can accept up to ...

Page 12: ... battery and calibrate the state of charge The Li ion battery pack should be stored in a cool dry and well ventilated area and should be far from the ﬁre and the high temperature The best Voltage in storage is V V The battery should be stored in the temperature range of the product speciﬁcation The best storage temperature is C The best humidity is If there is a long storage period of more than mo...

Page 13: ... Use the battery only within the speciﬁed temperature range The ﬁnal charge voltage of the battery measured V at the battery pole Use only DC chargers suitable for regulated load characteristics Only switch on the charger after connecting the charger to the battery After charging please ﬁrst turn oﬀ the charger then disconnect the battery from the charger If necessary the battery management system...

Page 14: ...ndard Minimum temperature to allow charging By default the threshold at which a low temperature alarm is triggered is C Conditions for series and parallel connection The batteries must be of the same batch and of the same model Before connecting the batteries in series or parallel please charge them fully If you have any questions regarding the purchase or use of the bat tery we will be happy to a...

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