ISO9001:2000 As Guidelines
Marwell factory has passed ISO 9001 certification and applied the principles as our guidelines in our daily manufacturing processes.
Cooperating with notable suppliers including BYD,CATL,Lishen quality is proven reliable by our clients.
From raw material inspection to semi-products inspection, BMS or PCB board to finished products testing, we trust the power of standardized process.
Marwell 4-Step
Quality Management System
From Every Part of The Solar System…
As lithium battery and inverter factory,we firstly care about the quality of lithium battery and inverter quality. That’s why we focus on every detail of every component that makes up a perfect product.
Lithium battery
Our battery are CE,EN62619,UN38.3,MSDS approved.Every battery cell capacity shall be sorted out at the same voltage to ensure the uniformity and stability of the battery pack.
inverter
Every component must be placed and welded correctly so as to keep the high finish product rate under certain max wattage, current, and peak power.
Solar panel
The engineering team places a major emphasis on both process and equipment capabilities. Every material going into the product is heavily tested during the product design to ensure the highest quality standard and level of reliability..
Sample Tests:
Making Sure Quality of Mass Production
The sample acts as the bridge between quality components and quality mass production. Here in Marwell, our unique approach is to test the sample again and again under the most severe condition so that all the components are working to ensure the performance.
Once the sample stand the tests, the QC team is responsible for recording its spec and providing BOM sheet for the mass production procedure.
1.Inverter Intelligent Test System
To ensure our sample is in line with your requirement, we conduct tests using Off Grid Inverter Comprehensive Test System to deliver electrical test report that all the specs are clearly listed:
1.Overload Protection Test
2.Overcurrent Protection Test
3.Power Factor Determination Test
4.Working Efficiency Test
2.BMS Test
Marwell self-developed BMS have survived the tests stimulating the harshest conditions so you can rest assured that the battery work even in the developing area with unstable power connection.
1.Internal Resistance Test
2.Over Charge&Over Discharge Test
3.Over Charge Recovery & Over Discharge Recovery Test
4.Over Current Test (over charge and discharge over current)
3.Packed Battery Inspection
Qualify Charging&Discharging electrical parameter makes the battery perform and make sure the safety of end users, Marwell pay special attention to the inspection process and regulate every operation of the QA.
It is Marwell ’s revolution that each operation is subject to both method and standard. In all the details, we weed out the unqualified battery to make sure what you received is flawless.
1.AC Internal Resistance Test
2.Short Circuit Protection Test
3.Charging Protection Test
4.Discharge Over Current Test
