Zalip CDM530AM Nokia N95 Replacement Battery 3.7V 1700mAh

Zalip CDM530AM / MIFI H1 — 3.7V Li-ion Replacement Battery

This is a 3.7V, 1700mAh Li-ion cell from Zalip's X-Longer series. It fits the CDM530AM and MIFI H1 — covering the Nokia N95 8GB and compatible MiFi hotspot hardware. Physical dimensions are 66.20 × 44.00 × 5.10mm, so check bay clearance before ordering.

• CDM530AM and MIFI H1 fit: Both devices share the same bay footprint and connector pinout, which is why one cell covers both. The protection circuit is matched to the 3.7V nominal rail these platforms expect — no voltage mismatch on the charge IC.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench, monitoring BMS cutoff behaviour at the low-voltage threshold. The protection circuit tripped cleanly at the expected floor with no fault flags on the charge IC.
• Fuel gauge recalibration on first use: After fitting this cell, run one complete discharge to auto-off, then charge uninterrupted to 100% before normal use. The Nokia N95 8GB's fuel gauge IC maps its Coulomb counter to the new cell's discharge curve during that first full cycle — skipping it produces erratic percentage readings for days.

Sudden shutdown at 20–30% on the Nokia N95 8GB

This happens because the N95's modem and display draw a combined current spike the cell cannot sustain once voltage dips below roughly 3.5V under load. The fuel gauge IC still reads 20–30% based on the old cell's curve, but the new cell hits its voltage floor faster under that load. The BMS trips to protect the cell before the OS has time to initiate a clean shutdown. One full discharge-charge calibration cycle corrects the gauge mapping and reduces these early cutoffs significantly.

Phone warm near the battery compartment during first charge

A new high-impedance cell generates more heat than a worn cell during the initial constant-current charge phase. The N95's charge IC pushes current at a fixed rate regardless of cell age, so internal resistance converts more energy to heat until the cell's impedance settles after a few cycles. This is expected behaviour on cycle one and two — not a fault. If the case feels hot rather than warm, or the phone shuts down during charge, pull the cable and let the battery cool to room temperature before resuming at 3.7V on the charge IC's resume threshold.