A Li-ion battery pack to power Petoi open source quadruped robots for about one hour of continuous walking:

• can slide into the track underneath Petoi robots and tune its center of mass.
• has a built-in charging and protection circuit, and an RGB LED to indicate the battery's status.
• compatibility
• robot dog Bittle
  
• robot cat Nybble
• with some reconfiguration and a 3D-print part, it can also power our 1st generation Nybble models that use two 14500 Li-ion rechargeable 3.7V batteries.  Please email support @ petoi.com for more details.

Specifications

• Output: 7.4V-5A - fully charged at 8.4V, it continuously supplies 5A current
• Capacity: 1000mAh/7.4Wh
• It takes 1.5 hours to 2 hours until it is fully charged
• Input: 5V-1A
• Charging cable(not included): micro-USB to USB or USB Type-C to USB
• Charger connector: regular USB charger (not included)
• Dimensions: 120mm x 60mm x 25mm (4.72 x 2.36 x 0.98 inch)
• Weight: 65g (2.3oz)