Bring New Life to Your Surface Pro 9: DYNM04 MQ20 High-Performance Replacement Battery Is your Microsoft Surface Pro 9 struggling with rapid power drain, unexpected shutdowns, or failing to stay charged through a workday? This 100% brand-new replacement battery is built with A-grade Li-ion cells, perfectly matching the original specifications of Surface Pro 9 models. It not only solves your battery troubles but also comes with a 12-month warranty, giving you total peace of mind for daily use.