Nokia N95 8GB Replacement Battery BL-6F 3.7V 1100mAh

Nokia N95 8GB / N78 / N79 — 3.7V Li-ion Replacement Battery (BL-6F)

This is a 3.7V, 1100mAh Li-ion cell built to the BL-6F spec. It fits the Nokia N95 8GB, N78, and N79 — three handsets that share the same battery bay dimensions and connector pinout. Swap the old cell, seat the contacts, and the phone boots.

• N95 8GB, N78, and N79 compatibility: All three models use the same 46.00 × 40.10 × 6.30mm bay and a three-contact BSI pin arrangement. The BSI line signals cell resistance to the phone's charge IC — this cell's resistance profile sits within the accepted window for all three handsets, so the charge circuit behaves as it did with the original Nokia cell.
• Bench tested on actual hardware: We ran this cell through charge-discharge cycles on an N95 8GB. The BMS accepted the charge current without tripping, the protection circuit engaged correctly at low-voltage cutoff, and the BSI resistance reading was stable across temperature.
• Fuel gauge recalibration on first use: On first use after installation, run one complete discharge down to auto-shutoff, then charge uninterrupted to 100% before using the handset again. This gives the fuel gauge IC a full reference curve against the new cell — without it, the percentage readout will drift and may report inaccurate levels for several days.

Sudden shutdown at 20–30% on the N95 8GB after a cell replacement

The N95 8GB's fuel gauge IC maps voltage to percentage using a discharge curve stored from the previous cell. A new cell has a steeper voltage cliff at the low end — the phone hits the hardware undervoltage cutoff before the gauge reaches 0%. This looks like a sudden crash at 20–30% but is actually the cell dropping below roughly 3.2V under the load of the modem or display backlight. One full discharge-to-shutoff cycle followed by a complete charge lets the IC remap the curve to the new cell. After that cycle, shutdowns below 15% stop.

Phone feels warm near the battery compartment during the first charge

A new high-impedance cell dissipates more energy as heat in the first few charge cycles as the internal resistance settles. The N95 8GB's charge IC does not throttle current based on cell impedance changes between cycles — it holds a fixed charge rate. Warmth during the first one or two charges is normal and not a fault. If the handset stays warm after three full cycles, check that the battery contacts are clean and fully seated, as a partial contact raises impedance further and increases heat at the connection point.