They racked up 539 yards, held the ball for 40 minutes, 17 seconds and sped up things.
"We kind of no-huddled the no-huddlers," Rivers said. "We had our own rhythm of no-huddle going. It was a heck of a team win."
Michael Vick threw for a career-best 428 yards and two touchdowns and ran for a score. But a porous Eagles defense couldn't stop Rivers all day.
He finished 36 of 47 for 419 yards, and the Chargers punted only once. They fumbled twice inside Philadelphia's 10 in the first half.
The teams combined for 1,150 total yards.
The Chargers got good news after the game when they learned receiver Malcom Floyd was fine after leaving on a stretcher with a neck injury on a hard hit by DeMeco Ryans and Nate Allen on the first play from scrimmage after halftime.
"All the tests right now look good, so it's great for the organization to go out and get a win for Malcom," coach Mike McCoy said.
Following a dynamic 33-27 victory over Washington last Monday, the Eagles (1-1) needed more time to get their up-tempo offense going against San Diego. It was the Chargers who moved the ball seemingly at will in the first half. Those two turnovers were costly, however, and the Eagles had a chance to win at the end.
"It was big for our offense to just convert on third down, trying to keep their fast-paced offense off the field, knowing how explosive they were," Royal said.
The Eagles had a first down at the Chargers 10 before Vick was shaken up on an incomplete pass. Nick Foles came in and threw another incompletion before Vick returned and misfired on a throw. Alex Henery kicked a tying 32-yard field goal that left Rivers plenty of time to answer.
"It doesn't matter how we score as long as we score," Kelly said. "But I still think we left too many opportunities offensively out there."