Motorola PMNN4491D IMPRES Li-Ion Battery for XPR 3000e / XPR 7000e Series
The PMNN4491D is an OEM IMPRES slim battery with high energy density. It is designed for Motorola XPR 3000e and XPR 7000e series portable radios. The battery is rated at 2100 mAh, 7.4V, with IP68 protection. The PMNN4491D is equipped with an IMPRES V2 chip that enables automatic self-calibration, eliminating the need for manual calibration cycles.
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Why Professionals Choose the Motorola Battery PMNN4491D
Operations managers running XPR 3000e or XPR 7000e radios on multi-shift deployments deal with two compounding maintenance variables: battery capacity degradation and IMPRES calibration time. Standard IMPRES calibration runs automatically on the charger but requires a full charge cycle. Across a 30- or 50-battery inventory rotating through two shifts, that adds up to significant charger time unavailable for regular charging. The PMNN4491D removes this variable.
Note: PMNN4491D replaces earlier versions PMNN4491A, PMNN4491AR, PMNN4491B, and PMNN4491C.
The D revision of the PMNN4491 carries an IMPRES V2 chip, which enables self-calibration. When used with a compatible IMPRES charger running current firmware (PMPN4576A or PMPN4284A), the battery calibrates without the full dedicated IMPRES cycle — it happens automatically in the background during normal charging. For fleet managers monitoring battery health through IMPRES Fleet Management software, the capacity and cycle data remain accurate without requiring operator action.
The battery delivers 2100 mAh at 7.4V in the slim high-density form factor — the same physical profile as the XPR 3300e and XPR 3500e standard battery. Dimensions are 112.35 x 51.65 x 20.70 mm and weight is 135 g. The IP68 rating matches the host radio body: both withstand full submersion. The battery is not intrinsically safe rated.
One operational note for fleet managers: the PMNN4491D contains an IMPRES V2 chip that does not display status on older IMPRES V1 chargers. The battery charges normally on V1 chargers, but the charger display will not show capacity or cycle data for this battery version. Contact our team to confirm charger compatibility for your fleet before ordering.
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Specification
Battery — IMPRES Slim High-Density Li-Ion Battery PMNN4491D
| Chemistry | Li-Ion |
| Technology | IMPRES (V2 chip — self-calibration capable) |
| Capacity | 2100 mAh |
| Voltage | 7.4V |
| IP Rating | IP68 |
| Intrinsic Safety | No rating |
| Form Factor | Slim High-Density |
| Dimensions (L x W x H) | 112.35 mm x 51.65 mm x 20.70 mm |
| Weight | 135 g |
| Operating Temperature (discharge) | -10°C to +60°C |
| Operating Temperature (charge) | 0°C to +45°C |
| Rated Cycles (standard Li-Ion) | 300–500 (to 80% capacity) |
| Rated Cycles (with IMPRES charger) | 430–700 (to 80% capacity) |
FAQ
Is the PMNN4491D compatible with the XPR 3300e and XPR 7550e?
Yes. The PMNN4491D is the standard OEM battery for the XPR 3300e and XPR 3500e, and is confirmed compatible with the full XPR 3000e and XPR 7000e series including XPR 7350e, XPR 7550e, XPR 7380e, and XPR 7580e. It is a direct replacement for all earlier PMNN4491 versions (A through C). For APX 900 or APX 1000i radios, a firmware update to R28.30.00 or greater is required - contact our team to confirm your radio's firmware version.
Will the PMNN4491D display on my IMPRES V1 charger?
The PMNN4491D contains an IMPRES V2 chip, which is not recognized by older IMPRES V1 chargers. The battery charges normally on V1 chargers, but the charger display will not show capacity or cycle data. To use full IMPRES self-calibration and status tracking, a compatible
