The Lenovo 78+ / 78++ (00HW030) is a premium high-capacity replacement battery designed specifically for heavy-duty Lenovo ThinkPad P70 and P71 mobile workstations. Built with high-quality lithium-ion cells, it delivers reliable power, extended battery life, and consistent performance for engineers, designers, programmers, and power users running intensive applications. It is the ideal replacement for worn-out or aging batteries, restoring your workstation’s portability and production capabilities.