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Electric bike battery %E0%AE%B5%E0%AF%86%E0%AE%9F%E0%AE%BF%E0%AE%AA%E0%AF%8D%E0%AE%AA%E0%AE%A4%E0%AF%81 %E0%AE%8F%E0%AE%A9%E0%AF%8D Is Lithium Phosphate