Reduce the brightness of your laptop screen.Data is temporarily written to your hard drive when your memory is not sufficient to hold all the data on the many pages you may be accessing. This creates less work for your hard drive. By minimizing the load on your CPU, sometimes you can avoid having the cooling fan turn to its high speed mode. Remove any devices plugged into your USB ports or other ports.Turn off your wireless finder if you are not using the internet.Avoid using the CD or DVD drive as the motor consumes a fair amount of power.Here are the top ways to reduce your power consumption. Even longer times can be achieved by minimizing the power consumption of your laptop. A 3 cell battery will run approximately 2 to 2-1/2 hours when the battery is new. You can extend your A1237 battery run time by minimizing the power drain on your battery. This may effectively 'kill' your A1237 battery. If your battery is run below this point it may not have enough energy to even recharge. Never run your battery below the 2% critically low warning point.NiCad batteries have never been used in laptops, even the earliest models. Recharging the A1237 battery even after 10 minutes will not reduce the battery's life span as lithium batteries do not have the memory effect which was found in older NiCad battery technology. Research has shown that the useful life of the battery will be much longer if you begin to recharge the battery any time before reaching 20% of the remaining power capacity. Your battery will have a longer service life if it receives shallow discharge and recharge cycles.
Don't run your battery all the way to empty.If your A1237 battery has not been actively used 2 months or more, condition your battery again with 5 partial discharge & recharge cycles to increase the batteries capacity and run time.Even though your battery indicates it is fully charged, your battery will return to a weakened state again in a few months if it does not get some exercise through partial discharge and recharge cycles while running on battery power alone.When your laptop is plugged into the power adapter the battery goes to 'standby mode' while your laptop runs directly on electricity from the wall outlet. Run on battery power without the AC adapter cord at least once a week to keep the A1237 battery cells active and at their peak potential.Condition and break in your new battery by performing 5 partial discharge and recharge cycles the first week you receive your new battery. A brand new A1237 notebook battery is in a weakened condition since it has not been conditioned yet.It is probably fully charged within 5 hours.
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It is a common practice to leave laptops plugged in after they have been turned off so that the battery has a full charge the next time you use your laptop. Once a computer battery is fully charged it will no longer accept any more power.