Lenovo ThinkPad t420s t420si t430s t430si 45N1039 45N1037 45N1036 42T4846 0A36309 81+ battery

The Lenovo ThinkPad T420s, T420si, T430s, T430si 81+ Battery (part numbers 45N1039, 45N1037, 45N1036, 42T4846, 0A36309) is a high-quality 6-cell lithium-ion battery designed to provide reliable power and extended runtime for your Lenovo ThinkPad laptop. With a capacity of 44Wh (watt-hours) and a voltage of 10.8V, this battery ensures optimal performance, allowing you to work longer without constantly searching for a power outlet.

Engineered for durability, the 81+ battery features Lenovo’s advanced power management technology, optimizing energy efficiency while maintaining peak performance. Whether you’re a professional working on-the-go or a student needing a dependable battery for daily tasks, this battery is an excellent replacement or backup option.

The ThinkPad 81+ battery is designed with overcharge, overheating, and short-circuit protection, ensuring safety and longevity. Its lightweight and slim design perfectly fits the ThinkPad T420s, T420si, T430s, and T430si models, maintaining the laptop’s portability.

For best results, it is recommended to use this battery with an original Lenovo charger and calibrate it periodically. Upgrade your laptop’s battery life with this genuine Lenovo 81+ battery, ensuring uninterrupted productivity and reliability.