Gigaset QV1030 Replacement Battery 3.7V 8900mAh Li-Polymer FG6Q

Gigaset QV1030 — 3.7V Li-Polymer Replacement Battery (FG6Q)

This is a 3.7V, 8900mAh lithium-polymer battery for the Gigaset QV1030 tablet. It replaces OEM part numbers FG6Q and 541385760001. The QV1030 is a 10-inch Android slate, and this cell matches the original's dimensions, voltage, and connector layout.

• QV1030 fitment: The QV1030 uses a large-format flat Li-Polymer pouch cell at 3.7V nominal. This battery matches that voltage rail and the 180.36 × 140.46 × 4.00mm pouch footprint, so the BMS handshake completes without error codes on first boot.
• Bench tested on actual hardware: We cycled this cell through charge, full load, and cutoff on the bench. The BMS held the upper voltage limit cleanly and triggered low-voltage cutoff at the expected threshold — no premature shutdowns and no overcharge flag during the test cycle.
• Fuel gauge recalibration after swap: After fitting this battery, run the QV1030 down to automatic shutoff in normal use — not forced drain — then charge uninterrupted to 100%. This single cycle resets the fuel gauge IC against the new cell's actual capacity curve and clears the inaccurate percentage readings that appear immediately after a battery swap.

QV1030 shutting down at 15–25% remaining after battery replacement

This happens because the fuel gauge IC is still calibrated to the old, degraded cell. When the display, Wi-Fi radio, and processor draw simultaneously, the combined current pulls the new cell's terminal voltage down faster than the old calibration curve predicts. The tablet interprets that voltage drop as a near-empty cell and triggers a protective shutdown — even though real charge remains. One full discharge-to-shutoff followed by an uninterrupted charge to 100% corrects the calibration. After that cycle, shutdowns at 15–25% stop.

Fast charging not available on the QV1030 after a battery swap

Some QV1030 units negotiate charge rate during the first accepted charge cycle after a new cell is fitted. If fast charge isn't available immediately after installation, that's expected — the charge IC needs one completed cycle to re-establish the negotiation parameters. Use the original charger and cable, not a third-party adapter, for that first cycle. After the cycle completes and the tablet reboots, fast charge typically resumes at the standard USB negotiated rate.