HTC STAR160 Startrack Replacement Battery 3.7V 850mAh

HTC Startrack Series — 3.7V Li-ion Replacement Battery (STAR160)

This is a 3.7V, 850mAh Li-ion cell built to replace the STAR160 battery in the HTC Startrack smartphone line. It fits the Str Trk, Star Trek, Startrek 100, and Startrek 160 variants. Capacity figure is taken from the product data — 850mAh at 3.15Wh.

• Startrack model compatibility: The Str Trk, Star Trek, Startrek 100, and Startrek 160 all share the same battery bay dimensions and connector pinout, making this STAR160-spec cell a direct fit across the range without wiring or adapter changes.
• Bench tested on actual hardware: We cycled this cell through a full discharge-charge sequence on the Startrek platform. The BMS accepted the charge handshake cleanly on the first cycle, and the protection circuit tripped correctly at low-voltage cutoff without requiring a manual reset.
• Fuel gauge recalibration on first use: On first installation, disable fast charging and run one full discharge-charge cycle before enabling it. The fuel gauge IC on the Startrack is calibrated to the original cell's discharge curve — a full cycle on the new cell lets it reset that reference before high-current charging begins.

Sudden shutdown at 20–30% on the Startrack after a cell swap

This is a voltage cliff problem, not a capacity problem. When the modem fires up or the screen hits peak brightness, current draw spikes hard. If the fuel gauge IC still holds the old cell's discharge curve, it reports 25% remaining while the actual cell voltage has already dropped below the shutdown threshold — around 3.2V under load. The phone cuts out to protect the circuit, even though the percentage display looks safe. One full discharge-charge cycle with fast charging off resets the coulomb counter and aligns the percentage to the new cell's actual curve.

HTC Startrack not powering on after the replacement battery sat in storage

Li-ion cells self-discharge during storage. If the STAR160 cell dropped below 2.5V per cell before installation, the BMS enters lockout mode and blocks all current flow to protect the cell from damage. The phone will show nothing — no charging animation, no boot screen. Connect the phone to a wall charger, not a PC port, and leave it for 15–20 minutes before attempting to power on. The charge IC needs enough current headroom to wake the BMS and push the cell voltage back above the recovery threshold of approximately 2.9V before normal charging resumes.