We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular lithium-ion battery pack with black plastic casing and gold contacts

MPF Products

MPF Products 1000mAh Replacement Battery for Logitech Harmony Remotes

SKU CH-E4BQ-WJKQX

A 3.7 V, 1000 mAh lithium-ion pack that replaces the R-IG7, NTA2340 and related cells in Harmony 720, 785, 850, 880, 885, 890, 900 and One Advanced remotes

  • Product typeRemote Control Battery
  • Extended runtime with 1000 mAh lithium-ion capacity
  • Direct replacement for R-IG7, NTA2340 and F12440023 packs
  • Powers Harmony 720, 785, 850, 880, 885, 890, 900 and One Advanced
  • Also fits Monster AVL300, AVL300s and AVL-300 remotes
  • 7 V output matches original remote specifications

1000mAh Replacement for Harmony Remotes

This lithium-ion pack replaces the original R-IG7, NTA2340 and related cells used in Logitech Harmony 720, 785, 850, 880, 885, 890, 900 and One Advanced remotes. It also fits Monster AVL300 series controllers. The 3.7 V, 1000 mAh rating restores factory runtime for daily home-theatre use.

Practical limits of a single-cell Li-ion pack

Capacity drops gradually over charge cycles, so heavy daily users will notice shorter intervals between recharges after a year or two. The cell delivers a fixed 3.7 V nominal voltage; devices that expect a different chemistry may misreport remaining charge. No built-in fuel gauge means the remote estimates runtime from voltage alone.

Direct-fit connector and original dimensions

The pack uses the same two-pin JST-style plug and physical outline as the OEM battery, so it seats without modification in the remote's compartment. No soldering or adapter cables are required. Users who need longer runtime than a single cell provides must carry a spare or use a charging cradle, because the form factor cannot accept a larger battery.

How it compares

Measured against everything we stock in Pro Audio Equipment, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 93% of the 613 comparable items (median $56.99).

Specifications

Product
Brand nameLogitech
Product lineHarmony Remotes
Product typeRemote Control Battery

Questions about this item

Which battery model number matches my Harmony remote?

This pack replaces R-IG7, 190304-2000, NTA2340, F12440023, K43D, M36B and M41B cells used in Harmony 720, 785, 850, 880, 885, 890, 900 and One Advanced remotes.

What does the 1000 mAh rating mean for daily use?

The 3.7 V, 1000 mAh lithium-ion pack stores 3.7 Wh, giving longer runtime between charges than lower-capacity originals in the same remote.

Does the connector fit the Harmony 880 battery bay?

Yes, the replacement is built to the same form factor and connector as the R-IG7 cell used in the Harmony 880 and the other listed models.

More in Pro Audio Equipment

Similar items