About this replacement
Microsoft Surface Pro 7 1960 / Pro 7 Plus 1961 — 7.58V Li-Polymer Replacement Battery (DYNH03)
This is a 7.58V, 6400mAh (48.51Wh) Li-Polymer battery for the Microsoft Surface Pro 7 (Model 1960) and Surface Pro 7 Plus (Model 1961). It replaces OEM part numbers DYNH03, G3HTA073H, G3HTA074H, and GA3HTA025H. If your Surface Pro 7 no longer holds charge, shuts down unexpectedly, or the battery has swollen under the display, this is the direct cell swap.
- Surface Pro 7 and 7 Plus compatibility: Both the 1960 and 1961 chassis use the same 7.58V battery rail, connector pinout, and BMS handshake protocol. The cell dimensions — 224.50 x 101.50 x 4.20mm — match the internal cavity on both variants. One replacement covers both models.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Surface Pro 7 unit. The BMS accepted the charge IC handshake without fault codes, reached full cell voltage without thermal event, and passed protection cutoffs at both ends of the voltage window.
- Fuel gauge recalibration after swap: After installation, run the tablet down to automatic shutoff under normal use — do not force-shutdown. Then charge uninterrupted to 100% without using the device. This one full cycle lets the fuel gauge IC recalibrate against the new cell and clears the inaccurate percentage display that almost always appears after a battery swap.
Surface Pro 7 shutting down at 15–25% battery remaining
This is one of the most reported symptoms on aging Surface Pro 7 units, and it follows the replacement too if the fuel gauge is not recalibrated. The display backlight and Wi-Fi radio together create a combined current draw that causes a momentary voltage sag at the cell terminals. When the cell voltage dips below the BMS low-voltage threshold — even briefly — the board interprets it as a depleted cell and cuts power. The percentage shown on screen is not always what the cell has left; it is what the fuel gauge IC last calculated. After installing this battery, run one complete discharge-to-shutoff cycle to sync the gauge to the actual cell chemistry.
Surface Pro 7 not fast charging after battery replacement
After a cell swap, the Surface Pro 7 sometimes defaults to slow charge on the first connection to the Surface Connect charger. This happens because the charge controller re-evaluates USB-PD negotiation parameters when it detects a new cell — it defaults to a conservative charge rate until the cell has completed one accepted charge cycle. No setting needs changing and no driver update is needed. Connect the original Surface charger, let it charge to 100% uninterrupted, and full charge rate restores on subsequent connections.