Each and every time a battery is drained dead it does harm the battery somewhat. However if it was only run down once, then do not worry about it. It has taken some life out of the battery but it is still good and should last years more.
dead cell in the battery or something is on that is pulling power from the battery.
if you are experiencing this with your own car, it may be a drained battery.
Until it runs out of gas. * Until the battery is drained.
Not with out being attached to a battery charger. On a 10 amp charger in 8 hours it will charge enough to start the car, allowing the battery is god enough to charge
You may still be able to charge it up.
check if your lights are still on that drained the battery
You either have a corroded or loose battery cable connection at the battery, a defective or drained battery, defective starter relay or starter.
It means the battery has been drained of all it's power. Simply recharge the battery with a battery charger and it will be fine. You do not have to replace the battery, although draining the battery fully does harm the battery. Charge the battery fully and it will function as it should.
Its probably not the battery, its more than likely the alternator that isn't keeping the charge, to check it turn your car on and the unplug the battery, if it stays on then its something else, but if it turns off then get a new alternator
An alternator is designed to charge a car's battery while the engine is running, not to run it down. However, if the alternator is malfunctioning or not functioning at all, it can lead to the battery becoming depleted, especially if electrical loads exceed the battery's output. Additionally, if there are excessive electrical draws from accessories while the engine is off, the battery can be drained regardless of the alternator's state. In normal operation, though, an alternator should keep the battery charged.
Need to see how many amp or watt hours your battery is rated for, many batteries are up to 100 watt hours.your cell phone may hold 1 or so watt hours to give you a comparison. A car battery could maybe charge your phone 500,times before its drained.
try checking the alternator try charging the battery with a car battery charger or getting a jump from a friend's car to get it to turn over