Emporia AK-V36 Elegance Replacement Battery 3.7V 1100mAh

Emporia Elegance Series — 3.7V Li-ion Replacement Battery (AK-V36)

This is a 3.7V, 1100mAh Li-ion cell for the Emporia Elegance, Elegance Premium, ElegancePlus, and Elegance weib. It replaces OEM part numbers AK-V35, AK-V36, AK-V37, and AK-V38. If the original cell no longer holds a charge or the phone shuts off unexpectedly, this cell restores full operation including calls, SMS, and the emergency call button.

• Elegance series compatibility: All models in this lineup share the same battery bay dimensions (56.00 × 35.60 × 5.25mm), connector pinout, and 3.7V nominal voltage rail. The AK-V36 footprint covers all four OEM part numbers without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Elegance platform. The BMS communicated correctly with the charge IC, protection thresholds triggered at the expected voltage limits, and the fuel gauge IC tracked state-of-charge without error flags after the first full cycle.
• First-cycle fuel gauge reset: After fitting this cell, run one complete discharge to low battery warning, then charge uninterrupted to 100% before normal use. This gives the fuel gauge IC a full reference curve for the new cell and prevents erratic percentage readings in the first few days.

Sudden shutdown at 20–30% on the Emporia Elegance after a cell swap

A new cell has a slightly different internal resistance profile than the depleted cell the fuel gauge IC was calibrated against. When the modem fires during a call or the screen backlight draws a short spike, the phone's charge IC sees a voltage dip that crosses the low-voltage cutoff threshold — even though the display still shows 20–30%. The BMS cuts output to protect the cell, and the phone drops without warning. One full discharge-to-charge cycle recalibrates the coulomb counter and eliminates most of these false cutoffs.

Phone not powering on after the replacement cell sat in storage

Li-ion cells lose charge during storage. If this cell sat long enough to drop below approximately 2.5V, the BMS enters a lockout state and blocks current flow to protect the cell from damage. The phone will show nothing — no boot screen, no charge indicator — when you first press power. 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 will trickle current into the cell until voltage climbs above the BMS re-enable threshold, typically around 2.9V, at which point normal charging resumes.