Imedical Healthcare Solutions
The Stryker LUCAS 2 Battery (#11576-000039) is a rechargeable Lithium-Polymer battery that can last for a solid 45 minutes in active operation. When connected to a power source, it can charge in as little as 2 hours. 
Note: This battery can be compatible with either the LUCAS 2 or LUCAS 3, if needed.
Warranty: 90 Days. 
Stryker LUCAS 2/3 Chest Compression System Genuine Accessories Guide