Spectra Precision 1445-2900 Rechargeable Battery Set NiMH for GL710, GL720 and GL722 - W/O Thermistor

Overview

The Spectra Precision 1445-2900 Rechargeable Battery Set delivers reliable, extended power for demanding construction and grading operations. This professional-grade 6-cell NiMH battery pack is engineered specifically for the Spectra GL710, GL720, and GL722 single and dual grade laser levels, providing contractors, excavators, and site managers with the dependable energy source they need for all-day leveling and grading tasks. Unlike disposable alkaline batteries that lose voltage quickly and create ongoing costs, this rechargeable solution offers consistent power output throughout the discharge cycle, ensuring your laser maintains accuracy from start to finish on every job.

Built without a thermistor, this battery configuration is designed for standard operating environments where temperature monitoring isn't required, making it a cost-effective choice for professionals who work primarily in moderate climate conditions. The NiMH chemistry provides excellent performance characteristics including minimal memory effect, allowing you to recharge at any depletion level without sacrificing long-term capacity. With proper care and maintenance, this battery set delivers hundreds of charge cycles, dramatically reducing your operational costs compared to disposable batteries while supporting sustainable jobsite practices.

Express Tools offers this genuine Spectra Precision battery set at a competitive $285, backed by expert customer support and fast shipping to keep your laser equipment operational. Whether you're establishing foundation grades, setting elevations for drainage systems, or performing precision land leveling, the 1445-2900 ensures your GL-series laser has the power to complete the job without interruption.

Key Specifications

• Model Number: 1445-2900
• Battery Type: 6-cell Nickel-Metal Hydride (NiMH) rechargeable pack
• Compatible Models: Spectra GL710, GL720, GL722 grade lasers
• Thermistor: Not included (standard temperature range operation)
• Voltage: 7.2V nominal output
• Capacity: High-capacity design for extended runtime
• Chemistry Benefits: Low memory effect, environmentally friendly compared to NiCad
• Cycle Life: Hundreds of recharge cycles with proper maintenance
• Manufacturer: Spectra Precision / Trimble
• Warranty: Manufacturer's standard limited warranty

What's in the Kit

• One (1) Spectra Precision 1445-2900 6-cell NiMH rechargeable battery pack
• Battery housing compatible with GL710/GL720/GL722 laser receivers
• Installation guide and battery care instructions

Job Applications

• Commercial Site Grading: The rechargeable design eliminates mid-project battery failures during critical grading operations for parking lots, building pads, and site development projects. With consistent voltage output, your GL-series laser maintains calibration accuracy throughout the workday, ensuring grade specifications are met without costly rework.
• Agricultural Land Leveling: When leveling large agricultural fields for irrigation efficiency, you need power that lasts. This NiMH battery pack provides the extended runtime necessary for covering acres of terrain without stopping to swap batteries, while the rechargeable nature means you can power up overnight and return to work at dawn without restocking disposables.
• Foundation and Concrete Work: Setting foundation elevations and concrete forms requires precision that can't be compromised by weakening batteries. The 1445-2900's stable discharge curve ensures your laser reference remains accurate from the first footing to the final pour, while the ability to quickly swap with a second charged pack keeps crews productive on time-sensitive concrete pours.
• Drainage and Utility Installation: Installing drainage systems, sewer lines, and underground utilities demands precise slope control over extended distances. This rechargeable battery supports all-day operation for establishing proper grades and pitch, while reducing the waste stream from disposable batteries on environmentally sensitive projects.
• Sports Field and Golf Course Construction: Creating the precise contours and drainage grades required for athletic fields and golf courses involves continuous laser operation across large areas. The 1445-2900 provides the reliable, long-duration power needed for these exacting applications, with rechargeable convenience that supports multi-day projects without supply interruptions.
• Road Construction and Paving: Highway grading and road construction projects require dependable equipment that won't fail during critical operations. This battery pack delivers consistent performance in the demanding conditions of roadwork, while the rechargeable design reduces logistical overhead on remote jobsites where battery resupply might be challenging.

Compatible Accessories

• Spectra Precision GL710 Single Grade Laser: Automatic self-leveling laser for simple slope applications
• Spectra Precision GL720 Dual Grade Laser: Advanced dual-grade capability for complex drainage and grading projects
• Spectra Precision GL722 Dual Grade Laser: Premium dual-grade laser with enhanced range and features
• Spectra Precision Battery Chargers: Compatible charging stations for overnight and between-job charging
• RC702 Remote Control: Wireless remote for adjusting laser settings without leaving the grade rod
• HL700 Laser Receiver: Handheld receiver for detecting the laser beam on grade rods
• Backup Battery Pack: Secondary 1445-2900 for continuous operation with hot-swapping capability
• Protective Laser Cases: Hard cases for transporting your GL-series laser and accessories

Related Guides

• Best Practices for Extending NiMH Battery Life in Construction Lasers
• Grade Laser Power Options: Rechargeable vs. Alkaline Battery Comparison
• Complete Setup Guide for Spectra GL710, GL720, and GL722 Lasers
• Managing Laser Levels and Batteries in Cold Weather Conditions

FAQ

Does this battery pack work with all Spectra Precision grade lasers?

The 1445-2900 is specifically designed for the GL710, GL720, and GL722 models. It is not compatible with other Spectra laser series such as the HV or LL models, which require different battery configurations. Always verify your laser model number before ordering to ensure proper fitment and performance.

What does "without thermistor" mean and how does it affect performance?

A thermistor is a temperature-sensing component that monitors battery heat during charging and operation. The "W/O Thermistor" designation means this battery pack doesn't include this sensor, making it suitable for standard temperature environments and compatible with basic charging systems. For extreme temperature conditions or advanced charging systems that require temperature monitoring, you would need the thermistor-equipped version. For most construction applications in moderate climates, this version performs excellently.

How long does the battery last on a single charge, and how many times can I recharge it?

Runtime varies based on laser model, temperature conditions, and usage patterns, but typically provides 8-12 hours of continuous operation under normal conditions. NiMH batteries like the 1445-2900 can be recharged 300-500 times with proper care, including avoiding complete discharge, storing at partial charge when not in use, and using appropriate Spectra-compatible chargers. This translates to years of service for professional contractors.

Can I leave the battery in my laser during storage, or should I remove it?

For storage periods longer than a few weeks, it's best practice to remove the battery from the laser and store it with approximately 40-60% charge in a cool, dry location. This prevents parasitic drain from the laser's circuitry and maintains optimal battery health. Before storage, clean the battery contacts and laser compartment to prevent corrosion. Recharge the battery every 3-4 months during extended storage to prevent deep discharge that can reduce capacity.