Sanyo VPC-T700 Replacement Battery 3.7V 660mAh

Sanyo VPC-T700 / Xacti VPC-E1403 Series — 3.7V Li-ion Replacement Battery

This 3.7V, 660mAh (2.44Wh) lithium-ion cell replaces the original battery in the Sanyo VPC-T700, VPC-E1403, Xacti VPC-E1403, and VPC-E1403EX compact digital cameras. It fits directly into the battery compartment and connects via the same contact layout as the OEM cell. Same voltage, same form factor at 40.00 × 31.10 × 5.90mm.

• VPC-T700 and Xacti E1403 series compatibility: These models share the same slim battery bay, contact polarity, and 3.7V supply rail. The BMS in each body reads cell voltage the same way, so one cell fits the entire group without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on representative Xacti-series hardware. The BMS accepted the cell without rejection flags, held stable voltage through the discharge curve, and triggered low-battery cutoff at the correct threshold.
• First-install charge cycle for accurate battery display: Run a full charge through the camera body or OEM charger before your first shoot. Some Sanyo Xacti bodies need one complete charge cycle to map the new cell's discharge curve and display remaining battery accurately.

Battery percentage jumping erratically on the VPC-T700 display

The VPC-T700 maps its battery indicator to voltage thresholds calibrated to the original cell's discharge curve. A new replacement cell can discharge along a slightly different curve, causing the indicator to jump — dropping several bars at once then holding steady. This is a display calibration issue, not a cell fault. Run two full charge-to-discharge cycles through the camera body and the indicator will track more consistently with actual charge state.

Camera body showing no battery or refusing to power on with a fresh cell installed

If the VPC-T700 or Xacti E1403 displays a no-battery warning immediately after inserting a new cell, the BMS has not yet authenticated the cell's resting voltage. Remove the battery, wait 10 seconds, and reinsert firmly — the contacts on these compact bodies are shallow and a partial connection triggers the same warning. If the body still refuses to power on, place the cell in the OEM charger first, charge to full, then reinsert. A fully charged cell at 4.2V clears the authentication check on first power-on.