Explay Celular Compatible Battery 3.8V 2300mAh Li-ion

Explay Celular — 3.8V Li-ion Replacement Battery

This 3.8V, 2300mAh (8.74Wh) Li-ion cell is a direct swap for the Explay Celular smartphone. It fits the original battery bay and connects to the same charge IC and fuel gauge circuit the phone shipped with. Capacity figures come from product data — not third-party estimates.

• Explay Celular platform fit: The Celular shares a standardised 3.8V single-cell architecture with a fixed connector pinout. The BMS on this cell matches that voltage rail and the charge termination voltage the phone's charge IC expects at full state.
• Bench tested on actual hardware: We cycled the cell through a full discharge-charge sequence and confirmed the BMS held cutoff correctly at both low and high voltage thresholds. No false full-charge trips were observed during the first three cycles.
• Fuel gauge recalibration on first install: After fitting this cell, disable fast charging and run one complete discharge down to automatic shutdown, then charge uninterrupted to 100%. This gives the Celular's fuel gauge IC one clean cycle to map the new cell's discharge curve before resuming normal use.

Sudden shutdown at 20–30% on the Explay Celular after a cell swap

A new cell has a slightly different discharge curve than the aged cell the fuel gauge IC originally learned. When the phone pulls heavy current — mobile data, GPS, or screen-on — voltage can drop sharply at around 3.5V even though the percentage display reads higher. The phone's protection circuit interprets that voltage dip as a low-cell event and cuts power immediately. Running one full calibration cycle — full discharge to shutdown, full charge to 100% — lets the coulomb counter relearn the curve and prevents premature cutoffs.

Phone won't power on after the replacement battery sat in storage

Li-ion cells shipped in storage states can drop below 3.0V during transit or shelf time. The Celular's BMS locks out below approximately 2.5V per cell to prevent damage, which means a standard power button press does nothing. Connect the phone to a wall charger — not a USB port — and leave it for 15–20 minutes before attempting to power on. If the charge IC sees enough voltage to lift the BMS out of lockout, the phone will begin a normal boot sequence.