Telstra Galaxy Note GT-N7000B Replacement Battery 3.7V 2000mAh

Telstra Galaxy Note / GT-N7000B Next G — 3.7V Li-ion Replacement Battery

This 3.7V 2000mAh Li-ion cell replaces the original battery in the Telstra Galaxy Note and GT-N7000B Next G smartphone. It fits the removable battery bay directly and restores power to the device when the factory cell no longer holds a useful charge. Capacity is 2000mAh (7.4Wh) — matched to the original specification.

• GT-N7000B Next G compatibility: The Next G variant uses the same battery bay dimensions, voltage rail, and connector as the standard Galaxy Note. Both models accept this cell without modification to the housing or contacts.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Galaxy Note unit. The BMS accepted charge current from the stock charger without triggering overcurrent cutoff, and voltage held stable under screen-on load.
• Fuel gauge recalibration on first use: After installation, run the battery from 100% down to automatic shutdown, then charge back to full in one uninterrupted cycle before enabling fast charging. This gives the fuel gauge IC a complete discharge curve to work from on the new cell.

Sudden shutdown at 20–30% on the replacement cell

The Galaxy Note's fuel gauge IC stores a charge curve built on the old, degraded cell. When a new cell goes in, that stored curve no longer matches actual cell behaviour. The phone sees 25% remaining but the new cell's open-circuit voltage at that state of charge sits below the threshold the modem and display need under load. The hardware shuts down before the reported percentage reaches zero. One full discharge-to-shutdown followed by a complete charge resets the coulomb counter and eliminates the mismatch.

Phone warm near the battery during first charge after replacement

A new cell has higher internal impedance than a cell that has been cycled. The charge IC pushes current into that higher impedance and dissipates more energy as heat during the first few cycles. This is normal and typically resolves after two to three full charge cycles as internal resistance drops. If the back cover feels hot rather than warm, or the phone displays an overtemperature warning, remove it from charge and let it cool before continuing — check the charger output is within the stock 5V/2A spec.