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Why is maintaining 80% battery power the best choice for EVs? | EV Basics

Setec Powerr

While manufacturers typically strive to increase the battery capacity to improve the range of an EV, the “EV 80% rule” suggests that Charging the EV to about 80% will maintain optimal battery performance and life over time. You’ll stop and power up before hitting zero miles, but let’s keep things simple and say 240.

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2025 Ram 1500 Ramcharger: Charge It Up

The Truth About Cars

A 92-kilowatt-hour battery and a 130-kilowatt generator combine to bring the juice. It works like this -- the V6 produces mechanical power, the generator turns that into electric power, and that electric power either charges a depleted battery or goes right to the EDMs if the driver wants to save battery charge.