Sony Bloggie Touch SP70 Replacement Battery 3.7V 800mAh

Sony Bloggie Touch Series — 3.7V Li-ion Replacement Battery (NP-SP70)

This 3.7V, 800mAh lithium-ion cell replaces the original NP-SP70 battery in Sony Bloggie Touch camcorders. It fits the MHS-TS20, MHS-TS20/S, MHS-FS2/V, and over 20 additional Bloggie Touch variants. Capacity matches OEM spec at 800mAh (2.96Wh).

• Bloggie Touch family compatibility: The MHS-TS20 line and related Bloggie Touch models share the same battery bay geometry, contact layout, and 3.7V single-cell BMS architecture — one cell covers the full range without modification.
• Bench tested on actual hardware: We cycled this cell through the MHS-TS20 body and confirmed the BMS handshake completed cleanly on first charge. Charge acceptance, over-discharge cutoff, and thermal protection all triggered at expected thresholds.
• First-cycle BMS initialisation on Bloggie Touch: Run the first charge cycle inside the Bloggie Touch body using the OEM USB charger — not a third-party dock. Some Bloggie Touch units need an in-body charge cycle before the battery-remaining indicator maps correctly to a new cell's discharge curve.

Why the Bloggie Touch shows a dead battery indicator on a freshly installed replacement

The Bloggie Touch reads remaining charge by tracking voltage against a stored discharge curve from the original Sony cell. A new third-party cell often ships at a lower resting voltage than the threshold the camera expects on first boot. The body interprets this as a flat or missing cell and trips the low-battery indicator before any recording attempt. Insert the cell and charge fully in-body via USB first — after one complete charge cycle the voltage mapping resets and the indicator reads correctly.

Battery percentage jumping erratically on the Bloggie Touch LCD

This happens because the Bloggie Touch uses a voltage-step indicator rather than a coulomb counter. The discharge curve of a replacement cell may not match the voltage thresholds the firmware was calibrated against, causing the display to skip bars or jump between levels. It is a display calibration issue, not a fault with the cell itself. Run two full charge-discharge cycles in the camera body and the indicator will stabilise as the BMS learns the new cell's actual discharge curve.