How long will it take to charge the Power 550 by Solar means? By wall outlet?

The Power 550 can charge from any of our available solar products (except the Solar 10). While the charging time is dependent on the level of sun, in full sun the Solar 30 will charge the Power 550 in as little as 22 hours, the Table 60 in as little as 12 hours, or the Table 120 in as little as 6 hours. By wall outlet, using the AC Adapter, the Power 550 charges in 5.5 hours.