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Rectangular lithium-ion battery pack, silver-grey finish, thin profile with connector ribbon

Cameron Sino Replacement Battery for Garmin Nuvi 361-00056-05 750mAh 2.78Wh

SKU CH-G29T-QAAGP

750 mAh lithium-ion replacement battery for Garmin Nuvi 40, 52, 56, 66 and 68 series GPS units

  • TypeReplacement battery
  • Battery Typelithium_ion
  • Replacement for Garmin Nuvi 2689LMT, 40, 52, 56, 66, 68 models
  • 750 mAh lithium-ion cell delivers 2.78 Wh at 3.7 V
  • Slim 48.50 × 33.95 × 4.60 mm profile fits original compartment
  • Weighs 18.0 g for minimal added bulk
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection

Compatible GPS Models

This replacement battery fits Garmin Nuvi models 2689LMT 6-inch, 2689LMT, 40, 40LM, 52, 52LM, 56LMT, 66LM and 68LMT. It matches part numbers 361-00056-05 and 361-00056-11. The lithium-ion cell is designed as a direct swap for the original power source in these specific navigators.

Power and Thermal Profile

The cell delivers a capacity of 750mAh at 3.7 volts for a total energy rating of 2.78Wh. It weighs 18.0g and measures 48.50 by 33.95 by 4.60mm. The integrated protection circuit guards against overcharge, over-discharge, over-voltage and short circuits during normal operation.

Installation Support and Packaging

A fully decoded chip ensures the battery communicates with the GPS unit like the original. The package includes shock-absorbing foam for transit protection. The supplier notes that installation videos are widely available online and that the battery reaches optimal performance after two or three full charge cycles.

Highlights

  • Replacement for Garmin Nuvi 2689LMT, 40, 52, 56, 66, 68 models
  • 750 mAh lithium-ion cell delivers 2.78 Wh at 3.7 V
  • Slim 48.50 × 33.95 × 4.60 mm profile fits original compartment
  • Weighs 18.0 g for minimal added bulk
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection

Specifications

BrandCameron Sino
Model2689LMT 6-inch, Nuvi 2689LMT, Nuvi 40, Nuvi 40LM, Nuvi 52, Nuvi 52LM, Nuvi 56LMT, Nuvi 66LM, Nuvi 68LMT
Part Number361-00056-05, 361-00056-11
TypeReplacement battery
Battery Typelithium_ion

Questions about this item

How do I install the 48.50 x 33.95 x 4.60 mm battery and what step is often missed?

Open the Nuvi case, disconnect the old pack, connect the new 3.7 V lithium-ion cell ensuring the decoded chip seats fully, then reassemble; the step most often missed is verifying the connector clicks into place before closing the housing.

What maintenance or replacement will this 750 mAh cell need later?

After about two to three full charge-discharge cycles the battery reaches peak capacity; thereafter it only needs normal recharging and will eventually require replacement when run-time drops below usable levels.

What limit appears first during sustained navigation use?

The 2.78 Wh capacity sets the runtime ceiling; continuous GPS operation will drain the pack until the over-discharge protection triggers a shutdown.

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