BlueCosmo Iridium 9555 Satellite Phone Standard Capacity Battery Battery charge time to 90% capacity is 3 hours when charged in a 9555 handset at 25C (77F) For optimum performance, only charge your battery between 0C (32F) and 40C (104F) Fast charge will be complete in about 3 hours 15 minutes RoHS compliant Compatible: Iridium 9555 satellite phone