HTC Voyager SV10B Replacement Battery 3.7V 950mAh

HTC Voyager — 3.7V Li-ion Replacement Battery (SV10B / SV16A)

This is a 3.7V, 950mAh (3.52Wh) Li-ion replacement battery for the HTC Voyager smartphone. It slots into the original battery bay and powers the device's processor, display, radios, and onboard hardware. Use OEM part references SV10B or SV16A to confirm fitment before ordering.

• HTC Voyager fitment: The SV10B and SV16A share the same voltage rail and connector pinout on the Voyager platform. Both part numbers cross-reference to this cell, so either OEM reference confirms you have the right battery.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a Voyager unit. The BMS accepted charge from the device's onboard charge IC without tripping overvoltage cutoff, and the cell held voltage through screen-on and radio-active load.
• Fuel gauge recalibration on first use: After installation, disable fast charging and run one full discharge-to-charge cycle before relying on the battery percentage. The Voyager's fuel gauge IC was calibrated to the old cell's discharge curve — one full cycle resets the coulomb counter against the new cell.

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

A fresh Li-ion cell has a steeper voltage cliff than a worn one at low state-of-charge. The Voyager's fuel gauge IC still maps percentage to the old, degraded discharge curve. When the modem fires or the screen backlight surges, the new cell's voltage drops sharply under load, and the protection circuit reads an undervoltage condition even though the reported percentage looks safe. The fix is one full discharge-charge cycle — run the phone to automatic shutdown, charge to 100%, and the coulomb counter recalibrates to the new cell. After that cycle, the percentage readings stabilise and low-charge shutdowns stop.

HTC Voyager won't power on after the replacement battery sat in storage

Li-ion cells self-discharge in storage, and if the cell drops below 2.5V the BMS trips a deep-discharge lockout to prevent cell damage. Plugging into a standard charger often shows no response because the charge IC won't begin a full charge cycle below the BMS re-entry threshold. Connect the phone to a wall adapter — not USB from a PC — and leave it for 15–20 minutes without pressing the power button. The charge IC trickle-charges the cell back above the BMS re-entry voltage, typically around 2.9V, at which point the phone will respond and charge normally.