Charge time for a dead battery can take up to 12 hours or longer. There are many factors that determine how long the charge will take, including the size and age of the battery.Continue Reading
The two common ways to charge a battery are fast and slow charges. The preferred method is a slow charge as it allows the battery to safely regain all its power.
It is generally safer to slow charge a battery. Slow charging requires the charger to be set at a consistent 10 amps. Slow charges are recommended for batteries that are to be used long-term.
A fast charge is when the charger is set to 20 amps. Although the batteries are charged in significantly less time, fast charging can cause them to overcharge.Learn more about Car Parts & Maintenance
Charging a 12-volt battery with 450 cold cranking amperes and a 5-ampere charge rate takes about nine hours. The length of time required to charge a battery varies with the voltage, the charge rate and the CCA capacity of the battery.Full Answer >
To calculate the estimated charging time of a fully discharged battery, divide its ampere-hour rating by the amperage of the charging current. To account for efficiency lost to heat and battery inefficiency, the estimated charging time is multiplied by 1 + (percent of energy lost/100).Full Answer >
The length of time it takes for an engaged interior dome light to drain an auto battery depends on how strong the battery is to begin with, according to Cars Direct. A strong battery is likely to die if the dome light is left on overnight.Full Answer >
To replace a headlight socket, first disconnect the negative terminal from the battery using a socket wrench. Disconnect the existing socket from the headlight assembly, remove the bulb, and cut the wires going to the socket before splicing them with new wires according to their color codes and wrapping them in electrical tape. Secure the new socket in the assembly, and reconnect the negative terminal.Full Answer >