Canon's BP-970G Rechargeable Lithium-Ion Battery for Select Canon Camcorders is an original equipment replacement battery for the Canon GL1, GL2 and XL H1 camcorders. Its lithium-ion design ensures long life between charges with a manufacturer estimated battery life of 7.2 hours. You can recharge this battery any time without risking loss of capacity, or the "memory" effect that sometimes occurs with rechargeable batteries.