Lithium Iron Motorcycle Battery YTX4L-BS,12V 4Ah with Built-in Battery Management System (YTX4L-BS), AGM Replacement Power Sport Battery 1. High-power lithium-iron battery technology; CCA-50: Lead-Acid Replacement Range: 3-4(Ah). 2. Operation temperatura range: -10  ~ 55 , Nominal Voltage: 12.8V, Watt-Hour (25): 14 (0.6A to 10.0V). 3. Replaces Yuasa Batteries: 12N11-3A-1, 12N5.5-3B, 12N5.5-4A, 12N5-4B, 12N9-3A, 12N9-4B-1, YB12A-A, YB4L-A, YB4L-B, YB5L-B, YB7-A, YB7B-B, YB7C-A, YB7L-B, YT7B-BS, YT9B-BS, YTR9-BS, YTX4L-BS, YTX5L-BS, YTX7A-BS, YTX7L-BS, YTX9-BS, YTZ5S 4. Long life, at least double of the lead-acid battery, the normal using life is 5--8 years 5. Low self-discharge, fully charged can be stored for 12 months. You can get two-year warranty and 100% satisfied service.