Nokia N152DL TN-BL3000R1 Compatible Battery 3.85V 2900mAh

Nokia C100 / N152DL — 3.85V Li-ion Replacement Battery (TN-BL3000R1)

This is a 3.85V, 2900mAh Li-ion cell that replaces the TN-BL3000R1 battery in the Nokia N152DL, TA-1520, C100, and C100 2022 smartphones. It restores full charging capacity when the original cell has degraded past the point of holding a usable charge. Physical dimensions are 76.50 × 62.00 × 4.60mm — match these before fitting.

• N152DL / C100 platform fit: These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol, which is why a single cell covers all four variants. The fuel gauge IC communicates over the same data line across the TA-1520 and C100 2022 revisions.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a C100 unit and confirmed the BMS accepted the cell without triggering a reject flag. The charge IC stepped through the correct CC/CV profile and terminated at the expected voltage ceiling.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This allows the fuel gauge IC to recalibrate against the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated cell — preventing erratic percentage readings from the first charge onward.

Sudden shutdown at 20–30% on the Nokia C100 after a cell swap

A new cell has a slightly different voltage-to-capacity curve than the original. The fuel gauge IC is still calibrated to the old cell, so it misreads the remaining charge. Under modem or screen load, the actual cell voltage drops below the BMS cutoff threshold before the OS registers low battery. The phone cuts out because the BMS sees a real undervoltage event even though the percentage display says 25%. One full slow-charge cycle corrects the coulomb counter baseline and the shutdowns stop.

Phone not powering on after the replacement cell sat in storage

Li-ion cells self-discharge during storage, and if the TN-BL3000R1 dropped below roughly 2.5V per cell, the BMS enters lockout mode to prevent damage — the phone will not respond to the power button or a normal charger. Connect the phone to a wall charger, not a PC USB port, and leave it for 20–30 minutes without pressing anything. The charge IC trickle-charges the cell back above the BMS recovery threshold, typically around 2.9V, at which point the BMS releases the lockout and the phone boots normally.