Cameron & Co DS-CS-MIS164SL Li-Polymer 7.2 Ah Black

Compatible Battery for Microsoft Surface 3

This replacement battery fits Microsoft Surface 3 models including MSK-1645 and 1645 variants. It matches original part numbers G3HTA003H, G3HTA004H and G3HTA007H for direct compatibility. The lithium-polymer cell delivers 7.2 Ah capacity at 3.78V for 27.22 Wh total energy. Buyers needing a different voltage or form factor should look elsewhere.

Physical Fit and Electrical Limits

The pack measures 204.60 x 95.26 x 3.20 mm and must sit flush inside the tablet chassis. A 3.78V nominal voltage means the device charging circuit must regulate to this exact level. Capacity is fixed at 7200 mAh and cannot be expanded or combined with other cells. Users requiring longer runtime than a single pack provides cannot achieve it with this unit alone.

Verify Device Model Before Ordering

Confirm your tablet is a Surface 3 10.8" unit labelled MSK-1645 or 1645 on the rear casing. Check the existing battery label for G3HTA003H, G3HTA004H or G3HTA007H to ensure an exact match. The slim 3.20 mm profile leaves no margin for swelling or connector misalignment. Installers without experience opening sealed tablets should seek professional assistance.