Batteries in BEVs must be periodically recharged. When metal ion batteries are fully discharged, they can no longer be recharged. Despite this advice, alkaline batteries have been recharged, and chargers have been available. A rechargeable battery cannot be recharged at an arbitrarily high rate. The batteries can be recharged via current collectors at stations. It could reach and travel before its battery needed to be recharged. Only these batteries were recharged in flight. The battery can be recharged in four hours from a 240-volt outlet. For example, some battery types can be safely recharged from a constant voltage source. Some battery electric vehicles (BEVs) can be recharged while the user drives. The battery could be recharged in 15 minutes. The mobile bots were battery-powered and need to be recharged every hour for five minutes. The battery can be fully recharged in two hours using a 240-volt plug-in system. The batteries are recharged on the day side of the orbit. The Macintosh computer chime was used to signify when WALL-E has fully recharged his battery.