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Small rectangular lithium battery pack with smooth grey finish and two wire leads

Estry

Estry G800 standard battery 3.7V 300mAh 1.3Wh

SKU CH-QDGJ-9QHHJ MPN G800

Lithium replacement cell for MGI Navigator remote controls, 3.7 V 300 mAh 1.3 Wh

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity300 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • Exact-fit replacement for MGI G800 Navigator remotes
  • 7 V 300 mAh lithium cell delivers 1.3 Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Slim 37.0 × 29.7 × 4.0 mm pack weighs 34.0 g

Replacement battery for MGI GPS units

This lithium cell replaces the original power pack in MGI G800, G400, G600, Navigator, Navigator Quad, Zip and Quad models. It delivers 3.7 V and 300 mAh capacity with a 1.3 Wh energy rating. The pack matches the NA7105 part number and fits the 37.0 x 29.7 x 4.0 mm battery compartment.

Golfers needing a direct-fit spare

Suits players who want a certified replacement that meets ISO9001, RoHS, CE, UN38.3 and MSDS standards. Not for users whose device requires a different voltage, a higher capacity than 350 mAh, or a larger physical footprint than 37.0 x 29.7 x 4.0 mm.

3.7 V 300 mAh lithium specification

The single deciding figure is the 3.7 V nominal voltage paired with 300 mAh rated capacity. If the original battery label shows a different voltage or a substantially different milliampere-hour value, this cell will not be compatible.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $12.99
Pricier than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameMGI
Product typeBatteries
Power
Battery typeLithium
Battery capacity300 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

When will the 3.7 V 300 mAh lithium cell need replacing?

The cell is rated at 1.3 Wh; replacement timing depends on how often the MGI G800 Navigator remote is used and how deeply the pack is discharged each cycle.

What limits runtime during a full day on the course?

The 300 mAh capacity sets the energy ceiling; sustained GPS polling and screen backlight on the Navigator G800 will draw the pack down fastest.

Does the pack get warm or draw extra power when the remote runs all day?

Normal operation stays within the 3.7 V nominal voltage; the built-in protection circuit prevents over-current heating, so temperature rise is minimal during continuous use.

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