Shimano Steps Battery - Tazer MX - 504 Wh
Pick up a second battery and double your range with an ultra-durable, powerful battery specially designed for the rigors of mountain biking, Compact, low profile design for improved impact and vibration-resistance, Supports travel up to 62 miles on one charge, 1,000 charge cycles with no significant power loss, Capacity of 504 Wh (36V, 14Ah)