TLP024C1 Verizon Avalon V Replacement Battery 3.85V 2400mAh

Verizon Avalon V / 5059S — 3.85V Li-Polymer Replacement Battery (TLP024C1)

This is a 3.85V, 2400mAh Li-Polymer replacement cell for the Verizon Avalon V (model 5059S). It replaces OEM part number TLP024C1 directly. If your Avalon V shuts down unexpectedly, charges slowly, or no longer holds a useful charge, this cell addresses the degraded original.

• Avalon V and 5059S compatibility: Both model references map to the same hardware platform — identical battery bay dimensions (70.95 × 56.70 × 3.40mm), same connector pinout, and same BMS handshake voltage. One cell fits both.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the 5059S platform, confirmed BMS communication, verified charge acceptance from zero, and checked that the fuel gauge IC tracked state-of-charge without dropping connection mid-cycle.
• Fuel gauge recalibration on first use: Disable fast charging for the first complete discharge-charge cycle after installation. This lets the fuel gauge IC build an accurate discharge curve against the new cell before high-current charging runs against an uncalibrated coulomb counter.

Sudden shutdown at 20–30% on the Avalon V after a cell swap

A fresh Li-Polymer cell has a steeper voltage curve than a worn original. The Avalon V's fuel gauge IC was calibrated to the degraded cell it spent months reading — so it misreads the new cell's state-of-charge and reports 25% when the real cutoff voltage is closer than expected. Under modem or display load, voltage sags below the BMS floor and the phone shuts off. One full discharge to automatic cutoff, followed by a full charge to 100%, forces the coulomb counter to re-anchor its curve to the new cell and stops premature shutdowns.

Avalon V not powering on after the replacement cell sat in storage

Li-Polymer cells self-discharge in storage — if this cell sat long enough to drop below approximately 2.5V per cell, the BMS enters a lockout state and blocks normal charge input to prevent damage to a deeply discharged cell. The phone will show no charge indicator and will not power on. Connect the device to a wall adapter, not a PC USB port, and leave it for 20–30 minutes without pressing power — the charge IC will apply a trickle recovery current until the cell climbs above the BMS re-enable threshold near 3.0V, after which normal charging resumes.