Kastar D-Li1 Battery 4-Pack Replacement for Trimble Devices - Long

In this review of the Kastar D-Li1 Battery 4-Pack, the bottom line is straightforward: this kit is for field technicians and surveyors who need dependable, longer runtime replacements for older Trimble GPS and GNSS receivers. The reviewer found the biggest reason to buy is the combination of a super high capacity 2600mAh cell and built-in protection circuitry, which together deliver extended operation and safe use in demanding outdoor workflows. For anyone replacing depleted Trimble batteries across multiple units, this 4-pack is a practical, cost-effective choice.

Key Features

• High Capacity: The 2600mAh lithium-ion cells provide noticeably longer run time compared with many standard replacements, reducing interruptions on long jobs.
• Compatibility: Designed to replace D-Li1 style batteries used in a wide range of Trimble models, making it easy to standardize spares across equipment.
• Safety Circuitry: Built-in over-charge, over-discharge, over-voltage, over-current and over-heating protection helps protect devices and prolongs battery life.
• Certified Cells: The lithium-ion cells meet UL1642 and CE standards, offering assurance of tested safety for professional use in the field.
• Value Pack: Supplied as a 4-pack so technicians can carry multiple hot-swappable spares and reduce downtime on multi-day surveying projects.

Who It's For

The Kastar D-Li1 4-pack is best for surveyors, GIS technicians, and field crews who use Trimble models such as the 5700, 5800, R4, R6, R7, R8 and MT1000 and need reliable spare batteries to keep units running through long shifts. It suits shops that want a consistent replacement battery across several receivers to simplify inventory and charging routines.

Users who require manufacturer-branded warranty support or original Trimble batteries for certified service agreements should check those terms first, since third-party replacements may not meet every vendor policy. Casual or infrequent users who only need a single spare may find a 4-pack more than necessary.

Pros & Cons

Pros

• Higher capacity 2600mAh cells extend operating time between charges.
• Includes multiple protection features to reduce risk of damage from charging faults.
• Wide compatibility with many Trimble GPS and GNSS models simplifies replacements.
• Supplied as a 4-pack, offering immediate spares for multi-device workflows.

Cons

• Third-party replacement may not satisfy users who require original manufacturer batteries for service contracts.
• The pack is bulkier than a single spare, so it may carry more than some users need.

Specifications

Battery Type	Lithium-ion
Battery Voltage	7.4V
Capacity	2600mAh
Safety Standards	UL1642, CE
Protection Circuitry	Over-charge, over-discharge, over-voltage, over-current, over-heating
Package Contents	4-Pack batteries
Compatible Models	Trimble 29518, 46607, 52030, 54344, 38403, 5700, 5800, 92600, R4, R6, R7, R8, R8 GPS, R8 GNSS, MT1000

Our Verdict

The Kastar D-Li1 Battery 4-Pack is a sensible, value-focused replacement for professionals who need longer run time and multiple spares for Trimble GPS and GNSS gear. With a 2600mAh capacity and comprehensive protection circuitry, it balances performance and safety for field use, making it a good buy for teams that want dependable batteries without repeatedly purchasing single low-capacity units.

Frequently Asked Questions

Will these batteries fit my Trimble receiver model?
They are designed to replace D-Li1 style batteries and list compatibility with many Trimble models including R4, R6, R7, R8 series and MT1000; confirm physical fit with your device before purchase.

Are these batteries safe for field charging?
Yes, the cells meet UL1642 and CE standards and include built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating.

How many batteries are included?
The package includes a 4-pack of replacement batteries so you have multiple spares for extended projects.