Cricket ICON 2 Compatible Battery PT34H406082J 3.85V 3300mAh

Cricket ICON 2 / U325AC — 3.85V Li-Polymer Replacement Battery (PT34H406082J)

This is a 3.85V, 3300mAh Li-Polymer cell built to fit the Cricket ICON 2 and U325AC smartphones. It replaces OEM part PT34H406082J and PT34H406082W. If the original battery swells, drops capacity sharply, or refuses to charge, this is the direct swap.

• ICON 2 and U325AC compatibility: Both models share the same battery bay dimensions, connector pinout, and charge IC protocol. The 80.70 × 59.80 × 3.80mm cell fits either chassis without modification. The BMS handshake is identical across both variants.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the ICON 2 platform. The BMS accepted the charge IC handshake on the first cycle, voltage held steady across screen-on and modem-active load, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
• Fuel gauge recalibration on first use: After installation, disable fast charging and run one full discharge-to-charge cycle at standard rate. This gives the fuel gauge IC time to map the new cell's discharge curve before fast-charge current is applied to an uncalibrated cell — preventing erratic percentage readings from the first day.

Sudden shutdown at 20–30% on the ICON 2 after a cell swap

The ICON 2's fuel gauge IC holds a discharge curve calibrated to the original cell. A new cell with a different internal resistance profile hits a voltage cliff at a different state of charge — the phone sees voltage drop under modem or display load and shuts down before the reported percentage reaches zero. This is not a fault with the replacement cell. One complete discharge cycle at standard charge rate lets the coulomb counter reset its endpoint reference against the new cell. After that cycle, the reported percentage and actual cutoff voltage align correctly.

USB fast charge not activating after battery replacement

On the first charge cycle after a cell swap, the ICON 2's charge IC can refuse to enter fast-charge mode. The controller reads the new cell's impedance as outside the expected range and defaults to standard 5V charging as a protection measure. This is normal BMS behaviour on a fresh cell — it is not a fault with the charger or the replacement battery. Complete one full standard-rate charge cycle first, then reconnect to a fast charger; the charge IC will accept the higher current once it has one baseline cycle on record.