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I'm looking for a custom-made battery pack for motorcycles with a voltage of 72V. I need options for two different current capacities: 60A and 120A. It's important that the battery pack is tailored to meet specific performance requirements, so please provide details on the design possibilities. Additionally, I would appreciate information on the materials used, expected lifespan, and any certifications or safety standards the battery pack meets. If you have any recommendations based on your current offerings, or if there are any design considerations I should be aware of, please let me know. I'm eager to explore potential solutions that fit my needs!