• OEM 60v 43.2ah (45ah) Talaria Mx4 Battery 
• Advanced smart BMS for the ultimate in reliability and protection
• State of charge meter on the battery
• Aluminum enclosure protects your cells from shock, vibration and repels water
• 31 pounds
• 15"x6.75"x5.5" 

This will work as an extra battery in the Talaria MX4 and MX3 . Those with an MX3 will see an increase in range (not power)

Charger not included but can be purchased here