Kyocera SCP-69LBPS DuraXV LTE Replacement Battery 3.7V 1400mAh

Kyocera DuraXV LTE / DuraXTP Series — 3.7V Li-ion Replacement Battery (SCP-69LBPS)

This is a 3.7V, 1400mAh Li-ion cell built to the SCP-69LBPS specification. It fits the Kyocera DuraXV LTE, DuraXTP, E4610, and E4520 — a line of rugged smartphones used in trade and field environments. Voltage and connector match OEM spec directly.

• DuraXV LTE / DuraXTP platform compatibility: These models share the same 3.7V battery bay, connector pinout, and BMS handshake protocol. Swapping between units in this family does not require a different cell — the SCP-69LBPS services the full range.
• Bench tested on actual hardware: We cycled this cell through the DuraXV LTE's charge IC and confirmed BMS communication, charge acceptance, and cutoff behaviour. The cell accepted a full charge cycle without triggering a fault state.
• Fuel gauge recalibration on first use: After fitting this cell, disable fast charging and run one complete discharge-to-charge cycle before resuming normal use. The phone's fuel gauge IC is calibrated to the old cell's discharge curve — one full cycle resets the coulomb counter against the new cell's actual capacity baseline.

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

This is a voltage cliff issue, not a defective cell. Under modem transmit load or screen brightness spikes, an uncalibrated cell can drop below the BMS's minimum voltage threshold even when the OS reports 25% remaining. The fuel gauge IC is still reading from the old discharge curve, so the percentage shown is wrong. Run one full discharge cycle down to automatic shutoff, then charge uninterrupted to 100% — this gives the coulomb counter a real measurement baseline to work from.

Phone feels warm near the battery compartment during the first charge

A new cell typically has higher internal impedance than a worn one, which causes the charge IC to work harder during the first few cycles — that generates heat. This is normal and settles after two or three full cycles as the cell's impedance drops. If the phone becomes hot to the touch or charging stops before 100%, disconnect and let the device cool to room temperature before resuming. Check that the battery contacts are fully seated — a partial connection increases resistance and amplifies the effect.