AT&T 80-S042-00V ErisStation Compatible Battery 7.2V 2000mAh

AT&T ErisStation VCS855 — 7.2V Ni-MH Replacement Battery (GP230AAHC6YMXZ)

This is a 7.2V, 2000mAh Ni-MH replacement battery for the AT&T 80-S042-00V Tech ErisStation VCS855 conferencing system. It replaces OEM part GP230AAHC6YMXZ and powers the wireless handset charging dock and communication base. Capacity figure is taken directly from product data — 14.4Wh total energy.

• ErisStation VCS855 platform fit: The VCS855 uses a 7.2V Ni-MH cell pack with a specific cell count and connector orientation that matches this unit. The BMS in the base station expects a defined internal resistance profile — Ni-MH chemistry at this voltage tier satisfies that handshake without triggering a fault state on the dock.
• Bench tested on actual hardware: We cycled this pack through the VCS855 dock and monitored BMS response across charge and discharge phases. The protection circuit held within expected cutoff thresholds and the dock accepted the pack without error flags on the charging indicator.
• First-session calibration on the VCS855: After swapping this battery in, run a full charge cycle before scheduling a meeting. The VCS855 maps battery state against voltage thresholds during normal operation — one complete cycle lets the system recalibrate its indicator so the charge level display reflects actual capacity from the second session onward.

Battery indicator showing wrong level after installation

The VCS855 tracks battery state by reading voltage at rest and under load — it does not reset this map automatically when a new pack is installed. A fresh Ni-MH cell has a different resting voltage curve than a depleted original, so the system reads it as partially charged even when it is not. Run one full charge-to-discharge cycle through the dock. After that cycle, the base station re-anchors its threshold map to the new pack and the indicator becomes accurate.

Wireless handset losing connection mid-conference call

The VCS855 handset draws simultaneous current for audio processing and the wireless link — the combined load is higher than standby draw. A degraded or deeply discharged pack sags below the minimum operating voltage under this combined draw, and the wireless radio drops out first because it is the highest-priority current consumer after audio. Check resting voltage before installing — a healthy Ni-MH pack at 7.2V nominal should read at least 7.8V fully charged. If the pack arrives in deep discharge from storage, place it in the dock for a minimum 12-hour charge before any call session.