Look out for these signs: reduced battery life, unexpected shutdowns, longer charging time, swollen or misshapen battery.

Keep it between 40% and 80% charge, avoid extreme temperatures, discharge and recharge it regularly, and use energy-saving features.

Check the model number and specifications of your original battery, research compatible brands and capacities, and consider your power and runtime needs.

Power down your laptop, remove any screws or clips securing the battery, carefully disconnect the old battery, and insert the new one, ensuring proper alignment and secure fit.