Restore Your Surface Pro4s Power: DYNR01 High-Quality Replacement Battery Is your Microsoft Surface Pro4 (model 1724, 12.3-inch) struggling with sudden power cuts during work, fast battery drain when taking notes, or failing to hold a charge through a full day? This 100% brand-new DYNR01 replacement battery is custom-engineered to match the original specs of Surface Pro4 1724. It perfectly revives your 2-in-1 tablets performance, whether youre working, studying, or streaming. Every battery undergoes strict pre-shipment testing to ensure charge-discharge stability, so you can use it without any concerns.