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Rectangular lithium-ion battery pack, dark grey plastic casing with label and connector, 77.00 by 49.25 by 21.50 mm

Cameron Sino 010-00543-00 replacement battery

SKU CH-N8RP-653QB MPN 010-00543-00

Replacement 2600 mAh 8.4 V battery fits Garmin GPSMAP 276, 276c, 296, 376, 376C, 378, 478 and 495 units

  • Replacement battery fits Garmin GPSMAP 276, 276C, 296, 376, 376C, 378, 478, 495 models
  • 2600 mAh capacity delivers 21.84 Wh at 8.4 V for extended navigation sessions
  • Fully decoded chip works identically to the original Garmin 010-00543-00 pack
  • Certified to ISO 9001, RoHS and CE standards with overcharge, over-discharge and short-circuit protection
  • Compact 77.00 x 49.25 x 21.50 mm size weighs 112.0 g for easy installation

Replacement battery for Garmin GPSMAP series

This 2600 mAh lithium-ion cell replaces the original Garmin 010-00543-00 pack used in GPSMAP 276, 276c, 296, 376, 376C, 378, 478 and 495 navigators. It supplies 8.4 V and 21.84 Wh, matching the factory voltage and capacity. The pack includes a fully decoded chip so the device recognises it immediately. Pilots, mariners and off-road drivers who need a fresh power source for these legacy units are the intended users.

Thermal and electrical behaviour

The battery operates within the same temperature envelope as the OEM unit and carries over-charge, over-discharge, over-voltage and short-circuit protection circuits. No active cooling is required; the cell runs passively inside the handheld chassis. Normal use draws only the modest current the GPSMAP hardware demands, so heat and acoustic signature remain negligible. A fresh pack reaches peak capacity after two or three complete charge cycles.

Fit and integration

The pack measures 77.00 x 49.25 x 21.50 mm and weighs 112.0 g, matching the original footprint and connector layout. Installation consists of opening the battery compartment, disconnecting the old cell and plugging in the new one — no soldering or tools beyond a small screwdriver are needed. The replacement restores full portable runtime without altering the device's balance or mounting options.

Highlights

  • Replacement battery fits Garmin GPSMAP 276, 276C, 296, 376, 376C, 378, 478, 495 models
  • 2600 mAh capacity delivers 21.84 Wh at 8.4 V for extended navigation sessions
  • Fully decoded chip works identically to the original Garmin 010-00543-00 pack
  • Certified to ISO 9001, RoHS and CE standards with overcharge, over-discharge and short-circuit protection
  • Compact 77.00 x 49.25 x 21.50 mm size weighs 112.0 g for easy installation

Specifications

BrandCameron Sino
Model010-00543-00, 100054300, 3580100054300, EGM478, GPSMAP 276, GPSMAP 276c, GPSMAP 296, GPSMAP 376, GPSMAP 376C, GPSMAP 378, GPSMAP 478, GPSMAP 495, GPSMAP478

Questions about this item

How do I install the 2600mAh 8.4V battery in my GPSMAP 276C and what step is often missed?

Open the battery compartment, align the connector, press it in until it clicks, then secure the cover. The step often missed is fully seating the connector before closing the cover.

What maintenance will this replacement battery need over its life?

Perform two or three full charge and discharge cycles when new. Avoid low-quality third-party chargers. Store below 60°C and do not disassemble or expose to fire or water.

What limit appears first during sustained use of the 21.84Wh pack?

The built-in protection circuit will cut power if the pack is overcharged, over-discharged, over-voltage or short-circuited, preventing damage before thermal limits are reached.

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