Revive your laptop battery life with a new ASUS K43S battery. You can expect about 3-5 hours of run time with this Asus K43S battery when new.

This Asus K43S battery is compatible with the Asus K43 models. It is compatible with the Asus A41-K53, A31-K53, A32-K53 and A42-K53 battery part numbers. Additional compatible models and part numbers are listed below. Don't see yours? Go to our Asus battery page for the complete list.

This Asus K43S battery is designed specifically to meet the original Asus battery specifications and is individually tested and backed by a 2 Year warranty.

If your laptop has a 2600 mAh battery with a rating of 14.4 volts, you can still use this higher capacity battery which has a rating of 11.1 volts. Your AC power cord provides 19 volts of power from the wall, your laptop only needs 10-11 volts of power to run. The added voltage enables your laptop to run as well as have the battery recharge at the same time.