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Black rectangular lithium-ion battery pack for Garmin Montana GPS units

Cameron & Co

Cameron & Co DS-CS-GRM600SL GPS accessory Li-ion 1.8 Ah 3.7V 1800mAh Black

SKU CH-AVH3-B96Y0

Replacement lithium-ion battery for Garmin Montana 600, 650, 680 and Monterra GPS units, 1.8 Ah capacity

  • TypeBattery
  • Compatible with Garmin Montana 600, 650, 680 and Monterra GPS units
  • 8 Ah lithium-ion cell delivers 1800 mAh at 3.7 V for long navigation sessions
  • 66 Wh energy rating supports extended field use between charges
  • Compact 53.33 x 34.15 x 10.88 mm form factor fits the original battery compartment
  • Replaces OEM part numbers 010-11599-00, 010-11654-03, 361-00053-00 and 361-00053-04

Replacement Battery for Garmin Montana GPS Units

This lithium-ion pack replaces the original Garmin 361-00053-00 cell used in Montana 600, 600T, 600t Camo, 650, 650T, 680, 680T and Monterra handhelds. It delivers 1.8 Ah at 3.7 V for 6.66 Wh of capacity in a black housing measuring 53.33 x 34.15 x 10.88 mm. The unit is brand new and built to 100 % OEM compatibility.

Upgrading from a Worn Original Cell

When the factory battery no longer holds a full day's charge on the trail, this 1800 mAh replacement restores the rated runtime without modifying the device. The jump is worth it if your current pack shows reduced capacity or swelling, because the form factor matches the OEM part numbers 010-11599-00, 010-11654-03, 361-00053-00 and 361-00053-04 exactly. It is not for users who need a higher-capacity pack than 1.8 Ah or a different voltage.

Limits of the Proprietary Garmin Interface

The pack connects through the Montana's dedicated battery bay, so it cannot be charged externally or used in devices outside the listed Garmin models. Lithium-ion chemistry means capacity will gradually decline over several hundred charge cycles, and the fixed 3.7 V output cannot be adjusted for other equipment. The physical dimensions lock it to the Montana chassis, preventing use in slimmer or differently keyed GPS housings.

Highlights

  • Compatible with Garmin Montana 600, 650, 680 and Monterra GPS units
  • 8 Ah lithium-ion cell delivers 1800 mAh at 3.7 V for long navigation sessions
  • 66 Wh energy rating supports extended field use between charges
  • Compact 53.33 x 34.15 x 10.88 mm form factor fits the original battery compartment
  • Replaces OEM part numbers 010-11599-00, 010-11654-03, 361-00053-00 and 361-00053-04

Specifications

BrandCameron Sino
ModelDS-CS-GRM600SL
TypeBattery

Questions about this item

What are the exact dimensions of the DS-CS-GRM600SL battery so I can check it fits my Garmin Montana battery compartment?

The pack measures 53.33 mm by 34.15 mm by 10.88 mm, matching the original Garmin 361-00053-00 form factor for Montana 600, 650, 680 and Monterra models.

How do I install this battery in my Garmin Montana and what is the step users often miss?

Power off the device, open the battery door, remove the old pack, insert the new DS-CS-GRM600SL with the contacts facing the same direction, close the door securely, then fully charge it before first use — skipping that initial full charge is the common mistake.

When will this 1800 mAh Li-ion pack need replacing under normal daily use?

With daily charge cycles, expect roughly two to three years before runtime falls noticeably below the rated 1.8 Ah, at which point a new DS-CS-GRM600SL restores full capacity.

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