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<br />Energport Inc Page 21 /24 <br />10 Product End of Life Management <br />The cell is designed to service with a finite life time. Customer should develop and implement an <br />effective tracking system to monitor and record resistance of each product in its entire service life. <br />The methods of internal resistance measurement and calculation methods need client and Ep <br />together to discuss and bilateral agreement. Customer and/or its user shall stop using the product <br />when its DCR exceeds 250% of the delivery value. Violation of this requirement will exempt the <br />Ep sales contract and the responsibilities of product quality Ep takes mentioned in the contract. <br />11 Storage and Others <br />1. According to characteristics of the battery, environmental conditions of storage and <br />transportation should be satisfied in order to protect the performance of the battery <br />2. In the process of storage and transportation process, battery system should be protected to <br />maintain about 50% of the SOC level, to ensure that no short circuit and liquid into the <br />battery system or immersed in liquids (water, oil, etc.). <br />3. Other requirements, please refer to the battery system using precautions. <br />12 Battery System Installation and Operation instruction <br />Battery system is an energy storage device, classified as dangerous goods. Non-professionals and <br />improper operation may cause electric shock, fire, explosion and other serious consequences. Battery <br />system installation, maintenance must be operated by professional and technical personnel and must <br />be used in strict compliance with the relevant safety regulations. Forbid non-professional installation, <br />maintenance and abuse beyond specified scope. <br />12.1 Battery System Internal Connections <br />Battery system connections consists of: the positive and negative power supply, communication <br />interface, connecting cables: <br />1. Each connector must be safe and reliable, and ensure that there are not problems of loose <br />and virtual contact. The contact resistance is close to 0 Ω and the connector must have the <br />capability of corrosion-resistant, wear-resistant, and shock-resistant. <br />2. All connections must meet the relevant requirements of national standards to prevent all <br />forms of arc discharge. <br />3. Connection between the internal battery must have seismic anti-loosening device. <br />Temperature, voltage, current sensors also need secure and reliable connection. Prevent loosening, <br />aging and squeezed. The sense lines prohibited any exposed metal phenomenon. <br />4. Prevent any forms of short circuit during the process of connection. <br />5. Prohibit personnel without protective gear to hand operation. <br />6. All connections must be carried out under the explicitly guidance, any form of conjecture <br />and vague attempts to form practices are forbidden. <br />7. The key points of connection is that connections are correctly and securely connected <br />84