In Spanish, recharge is usually recargar. Cheaper is más barato.

Quick examples

  • “Recharge the batteries” → “Recarga las baterías.”
  • “This one is cheaper” → “Este es más barato.”

Small nuance

  • Recharge can also mean “recargarse” when something charges itself again, like a battery.
  • Cheaper can vary by context, but más barato is the most common translation.