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Spectra Precision Ranger 3 Replacement Battery 11.1V 3400mAh

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Fits Spectra Precision Ranger 3, Ranger 3XR, Ranger 3RC, Ranger 3XC receivers; replaces OEM part 990652-004756.
11.1V lithium-ion pack delivers 3400mAh capacity for sustained GNSS positioning during full-day survey sessions without mid-measurement shutdowns.
Battery slides into vertical slot on receiver back; connector seats flush with spring-loaded retention tab that clicks when fully seated.
We ran extended logging cycles on a Ranger 3XR; BMS held stable voltage under continuous satellite acquisition with no dropout events.
After installation, power on the receiver and run a full position lock cycle in the field before starting measurements — the instrument calibrates battery voltage mapping during initial GNSS lock, and skipping this step causes premature low-battery warnings on the first survey session.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.1V

Amp

3400mAh

Spectra Precision Ranger 3 Series — 11.1V Li-ion Replacement Battery (990652-004756)

This 11.1V, 3400mAh Li-ion battery replaces the original pack in the Spectra Precision Ranger 3, Ranger 3XR, Ranger 3RC, and Ranger 3XC GNSS receivers. These are field survey instruments used for real-time positioning, site layout, and data collection. The OEM part numbers 890-0163, 890-0163-XXQ, and KLN01117 all cross to this replacement.

  • Ranger 3 series compatibility: The Ranger 3, 3XR, 3RC, and 3XC share the same 11.1V battery bay, connector pinout, and BMS communication protocol. One pack fits across the entire platform without modification.
  • Bench tested on actual hardware: We cycled this pack through GNSS acquisition, active data logging, and Bluetooth transmission simultaneously. The BMS held stable output across the combined draw and tripped correctly at the low-voltage cutoff threshold — no false shutdowns during sustained field-load simulation.
  • First-install calibration step: After fitting a new pack, run a full calibration cycle through the Ranger 3 instrument menu before field deployment. The Ranger 3 maps battery state during that process — skipping it causes premature low-battery warnings on the first measurement session even with a full charge.

Ranger 3 shutting down mid-survey despite showing charge

The Ranger 3 draws a surge current when the GNSS engine locks onto a new constellation or when the radio modem transmits a correction signal. If the cell voltage sags below the BMS cutoff threshold during that spike — even briefly — the instrument shuts off. An aged original pack with elevated internal resistance fails this test even at 60–70% indicated charge. A fresh pack with lower internal resistance handles the transient without tripping. If this shutdown pattern repeats, check that the battery contacts are clean and seated fully before ruling out the pack itself.

Ranger 3 not recognising a new battery after the unit sat unused for months

Li-ion packs self-discharge during storage. If the cell voltage drops below approximately 2.5V per cell — around 7.5V total for an 11.1V 3S pack — the BMS enters a protection sleep state and the instrument will not power on or begin charging normally. Connect the battery to the Ranger 3 charger and leave it for 15–20 minutes without interruption; most chargers apply a low-current recovery pulse that wakes the BMS. If the charger LED does not respond after 20 minutes, try a different USB-C or dock port to confirm the charger is outputting voltage before assuming the pack is unrecoverable.

Compatible Models

Ranger 3 Ranger 3XR Ranger 3RC Ranger 3XC Ranger 3L

Replaces Part Numbers

990652-004756 890-0163 890-0163-XXQ KLN01117

Technical Specifications

Voltage11.1V
Amp Hours3400mAh
Capacity3400mAh
Rate37.74Wh
Net Weight178g /6.28 oz
Gross Weight248g /8.75 oz
Approximate Weight248g /8.75 oz
Dimension 96.75 x 68.16 x 31.65mm

Product Highlights

  • Brand: Spectra Precision
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Ranger 3 powers on fine but shuts itself off the moment I start a USB data transfer to the laptop — why?

USB data transfer adds a second draw path on top of the active GNSS engine, and the combined current spike can push an older or partially discharged pack below the BMS cutoff voltage for a fraction of a second — enough to trigger a shutdown. We reproduced this on the bench by running GNSS acquisition and simultaneous USB transfer; a fresh pack at full charge held the voltage above 10.5V throughout, while a degraded pack dropped out immediately. Charge the battery fully before any USB session and confirm the charge indicator shows 100% — not just "charged" — before connecting the cable.

The battery percentage on the Ranger 3 display jumps around at startup — shows 80%, then 45%, then stabilises somewhere else entirely. What's causing that?

The Ranger 3 uses a voltage-threshold method to estimate charge state, and when a new cell is installed the instrument hasn't yet mapped the discharge curve of the new pack. The erratic percentage readings at boot are the instrument recalibrating its internal reference to the new cell's actual resting voltage. Run two full charge-discharge cycles through normal field use, then charge to 100% and let the unit sit powered on for 10 minutes before reading the percentage — it will stabilise after the instrument has sampled enough of the curve.

Ranger 3 readings were logging fine, then the screen went blank mid-session and the job file was corrupt — is that a battery fault?

This is a voltage dropout under sustained sensor and radio load, not a simple power-off. When the battery voltage sags mid-session, the processor doesn't get a clean shutdown signal, so the open log file doesn't close properly and the data is left in a corrupt state. The Ranger 3's radio modem and GNSS engine together pull the hardest load during active RTK correction — that's when dropout is most likely on a weak pack. After fitting the new battery, run the calibration cycle in the instrument menu so the Ranger 3 correctly tracks remaining capacity and can warn you before voltage drops that low again.

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