This is the same 36V 7.8Ah (amp hour) battery that comes with every Zinger Chair. The terminals are concealed behind slots in the end closure to mitigate the risk of a short. The same key that came with your Zinger works for this battery as well. This standard battery provides an impressive range of up to 8 miles. This battery adheres to airline standards so great for airline travel! When arriving at the end of the jetway, simply remove the Zinger battery from the back of the chair, fold your Zinger and hand it to a flight attendant to stow under the plane. Take the battery onto the plane with you to your seat, notifying flight attendants of the location of the battery in the aircraft. Be sure to contact your specific airline to ask for their procedures for transporting a battery-powered vehicle and a battery.