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Rectangular lithium-ion battery pack, flat grey finish, 53 by 33 by 7.78 mm, 950 mAh 3.7 V

FYIOGXG 950mAh 3.7V lithium-ion battery for Harmony 890/895/900/One/MX-880/890

SKU CH-JWBS-Q2R9C

Replacement 950 mAh 3.7 V lithium-ion battery fits Harmony 890, 895, 900, One, MX-880 and MX-890 remotes

  • Battery pack size53.07 × 33.08 × 7.78
  • Battery typeLithium ion
  • Battery capacity950 mAh
  • Battery voltage rating3.7 V
  • Details53.07 × 33.08 × 7.78
  • Product typeLithium ion
  • Direct replacement for Harmony 890, 895, 900, One and MX remotes
  • 950 mAh capacity restores original runtime between charges
  • 7 V lithium-ion chemistry matches factory specifications
  • Built-in protection circuit guards against overcharge, over-discharge and short circuit
  • Fully decoded chip communicates with the remote exactly like the original battery

Compatible Harmony Remote Models

This FYIOGXG lithium-ion battery replaces the original power cell in Harmony 890, 895, 900, One, MX-880 and MX-890 remotes. It delivers 950mAh at 3.7V and fits the listed models without modification. The pack includes a decoded chip that communicates with the remote exactly as the factory unit does.

Build Quality and Daily Use

The cell measures 53.07 x 33.08 x 7.78mm and weighs 27.0g, matching the original dimensions for a secure fit in the battery compartment. Integrated protection guards against overcharge, over-discharge, over-voltage and short circuits. The package ships with shock-absorbing foam to prevent damage during transit.

Upgrade From Worn Originals

Owners of compatible Harmony remotes whose factory batteries no longer hold a charge will restore full runtime with this direct replacement. The jump is worthwhile when the original cell requires daily recharging or shows swelling. Users needing a different voltage, capacity or form factor should look elsewhere.

How it compares

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

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Product
Brand nameFYIOGXG
Model nameReplacement battery
Product typeLithium ion
Power
Battery typeLithium ion
Battery capacity950 mAh
Battery voltage rating3.7 V
In the box
Battery pack size53.07 × 33.08 × 7.78

Questions about this item

What voltage does the 3.7 V lithium-ion cell deliver?

The cell is rated at 3.7 V and 950 mAh, giving about 3.52 Wh of energy.

Will the 53.07 × 33.08 × 7.78 mm pack fit my Harmony One remote?

Yes, those dimensions match the original battery cavity for the Harmony One and the other listed models.

What is the most common mistake when fitting the replacement?

Not seating the connector fully; the decoded chip only works when the plug clicks into place.

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