About this replacement
Symbol VC5090 Series — 3.6V Ni-MH Replacement Battery (GP75AAAH3AMXZ)
This is a 3.6V, 700mAh Ni-MH battery for the Symbol VC5090 mobile data terminal. It fits the VC5090-MA0QL0GH6WW, VC5090-MA0QM0GH67R, VC5090-MA0QM0GH6WR, and related VC5090 variants. It replaces OEM part GP75AAAH3AMXZ directly.
- VC5090 family fit: All listed VC5090 variants share the same 3.6V Ni-MH cell format, connector pinout, and BMS handshake. One battery covers the full range without modification.
- Bench tested on actual hardware: We cycled this pack through scan-trigger and wireless polling loads typical of pick-and-pack shifts. The BMS held stable across repeated inrush events at low state-of-charge with no false cutoffs.
- First-shift preparation on the VC5090: After installing, seat the scanner in its cradle and run a full charge cycle before pulling it into rotation. The scan trigger draws its highest inrush current when the cell is near minimum — a fully charged pack prevents BMS trips on the first burst of the shift.
Cradle showing charging error on a new Ni-MH pack
Ni-MH cells leave storage with a partial and uneven charge state. Some VC5090 cradles detect this as an anomaly and flag a charging error rather than starting the charge cycle. The fix is almost always contact-related — wipe the gold contacts on the battery and the cradle dock with a dry cloth, reseat firmly, and wait 60 seconds. If the error clears, the cradle has re-detected the pack correctly and charging will begin normally.
Scanner losing wireless connection during rapid scan bursts
The VC5090 runs both its wireless radio and its scan engine simultaneously during fast scanning. This combined draw spikes current far above either load alone. On a degraded or low cell, the voltage sag from that inrush can cross the BMS cutoff threshold, momentarily dropping the radio link. If this happens mid-shift, check the pack voltage — a healthy 3.6V Ni-MH cell should read no lower than 3.2V under load. Swap or recharge if it sags below that point.