MetroPCS Revvl 4 TLP034F1 Compatible Battery 3.85V 3300mAh

MetroPCS Revvl 4 / 5007Z — 3.85V Li-Polymer Replacement Battery (TLP034F1)

This 3.85V, 3300mAh lithium-polymer cell replaces part number TLP034F1 in the MetroPCS Revvl 4 and 5007Z smartphones. It fits the same physical footprint as the original at 80.20 × 60.60 × 4.10mm. Swap it in when the stock cell no longer holds charge or causes unexpected shutdowns.

• Revvl 4 and 5007Z compatibility: Both the Revvl 4 and 5007Z use the same 3.85V cell architecture and TLP034F1 connector pinout. The BMS handshake on each model expects the same charge termination voltage, so one cell covers both variants without modification.
• Bench tested on actual hardware: We cycled this cell through charge and full-load discharge on a Revvl 4 unit. The BMS accepted charge termination at 4.35V and held voltage above the modem-load cutoff threshold without triggering a protective disconnect.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before fast-charge current is applied to an uncalibrated cell.

Sudden shutdown at 20–30% on the Revvl 4 after a cell swap

The Revvl 4's fuel gauge IC stores a discharge curve calibrated to the original cell. A new cell has different internal resistance and a steeper voltage cliff near depletion. When the modem or screen pulls a high current burst, the new cell's voltage drops faster than the IC expects, and the phone interprets it as a critical low-battery condition even though the percentage display reads higher. Running one full discharge-to-shutdown cycle followed by an uninterrupted charge to 100% forces the IC to relearn the curve and eliminates most premature cutoffs.

USB fast charging not working on the first cycle after replacement

The Revvl 4's charge controller handshakes with the battery BMS before enabling elevated charge current. On a fresh cell, the BMS may not respond to the fast-charge negotiation on the first cycle because its internal registers are in a default state. The phone will fall back to standard 5V charging rather than throw an error. Plug into the original charger, let the first cycle complete fully at standard current, and fast charging typically resumes on the second connection without any additional steps.