Features: 

• High-Performance Rechargeable Batteries: The advanced square 9V battery provide maximum reliable power for the need of your devices.
• The long-life 9V battery can be recharged up to 1200 times when fully or partially drained, which is extremely economical and powerful. 
• The SDNMY 9V rechargeable batteries are greatly designed for enhanced performance for high drain applications such as R/C controller detectors, emergency location transmitters and beacons, paintball guns, GPS, LED lighting devices, and other portable high drain digital electronics.

Specifications: 

• Battery Type - Nickel-metal Hydride 
• Nominal Volts(V)- 9 V
• Dimensions: 26.5 H x 48.5 W x 17.5 L (mm)