Will my battery gauge still be accurate after installing the Ranger? July 14, 2021 15:23 Yes! As the batteries work in parallel, and the battery gauge is based on Voltage, the percentage will still be accurate. Related articles How do I charge my bike after installing the Ranger? Can the Ranger replace my stock battery? What kind of performance benefits will the Ranger give me? Why isn't my Ranger indicator showing 100% after initial install? What kind of battery capacity increase can I expect from the Ranger?