Samsung SCH-R720 Admire Compatible Battery EB504465LA 3.7V 1500mAh

Verizon SCH-r720 Admire / Vitality — 3.7V Li-ion Replacement Battery (EB504465LA)

This is a 3.7V, 1500mAh Li-ion cell built to fit the Samsung SCH-r720 Admire and SCH-r720 Vitality on Verizon's network. It replaces the original EB504465LA or EB504465LABSTD cell when capacity has dropped or the battery no longer holds a charge. Slot it in, and the phone can resume calls, messaging, and app use normally.

• SCH-r720 Admire and Vitality fit: Both the Admire and Vitality variants run the same voltage rail and share the same connector and physical footprint, so one cell covers both models without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the SCH-r720 platform. The BMS handshake completed correctly, charge IC accepted the cell without error flags, and voltage held stable through full discharge.
• Fuel gauge recalibration tip: After fitting a new cell, run one full discharge down to auto-shutdown, then charge uninterrupted to 100% before normal use. The SCH-r720's fuel gauge IC was calibrated against the original cell's discharge curve — skipping this step leaves the coulomb counter reading against the wrong baseline, which causes erratic percentage jumps.

Sudden shutdown at 20–30% on the SCH-r720 after a cell swap

This happens when the fuel gauge IC hasn't recalibrated to the new cell's discharge curve. The old cell had a shallow voltage cliff at end-of-discharge; a fresh cell can drop voltage more steeply under modem and screen load. The phone's power IC interprets that voltage sag as a critically low cell and cuts off before the percentage display catches up. One complete discharge-to-shutdown followed by a full uninterrupted charge resets the coulomb counter and eliminates most of these early shutdowns.

Phone reports wrong battery percentage after fitting the replacement cell

The SCH-r720 stores learned discharge data tied to the original cell's internal resistance profile. When a new cell goes in, that stored data no longer matches actual cell behaviour, so the percentage readout drifts — often reading higher than real capacity or jumping in uneven steps. This isn't a fault with the replacement cell; it's the fuel gauge IC running on stale calibration data. Force a recalibration by letting the phone discharge fully to auto-shutdown, then charge straight to 100% at standard charge rate. After that cycle the gauge tracks accurately against the new cell.