Li-ion Replacement Battery for Logitech Harmony One, Harmony 720 Pro, Harmony 880 Pro, Harmony 890 Pro, Harmony 900 Remote, Harmony 785, Harmony 890, Harmony 900
Quick take
This Cameron Sino Li-ion replacement battery is built to restore battery life in multiple Logitech Harmony remote models, including some discontinued units. It targets buyers who want a direct replacement with the listed 3.7V 950mAh (3.52Wh) specifications and built-in protection features. The main caveat is compatibility, so you need to verify your original battery’s part/model number before ordering.
Pros and cons
Pros
- Designed for several Logitech Harmony remotes listed for compatibility.
- Matches the listed Li-ion specs, including 3.7V and 950mAh (3.52Wh).
- Includes multiple protection features (over-charge, over-discharge, over-voltage, over-current, over-heating).
- Common buyer theme is correct fit and successful restoration of usable remote operation.
Cons
- Compatibility depends on your exact original part number, so double-checking is essential.
- Battery performance can take a few charge-discharge cycles to settle in after installation.
What buyers think
Buyer-review evidence is limited in volume, but the recurring themes are strongly practical. Most comments focus on the battery fitting as expected and helping restore reliable operation in older Harmony remotes that were otherwise difficult to keep running. Several buyers mention longer battery life after replacement, and at least one highlights that charging habits matter, since leaving a remote on a charger unnecessarily may reduce long-term battery health.
Who this battery is for
This replacement battery is a good fit if you own a Logitech Harmony remote from the compatible list and your current battery has degraded, no longer holds a charge, or causes frequent recharging.
- Best for: people trying to extend the life of an older Harmony remote, especially units that are harder to replace otherwise.
- Best use case: when you can confirm the original battery’s model or part number matches the replacement’s compatibility requirements.
Key specifications at a glance
- Battery type: Li-ion
- Voltage: 3.7V
- Capacity: 950mAh (3.52Wh)
- Weight: 52.0g (listed)
- Dimensions: 53.07 x 33.08 x 7.78mm (listed)
- Included: 1 lithium-ion battery
Compatibility notes (this is the biggest buying factor)
This battery is intended for specific Harmony models and part numbers. It is listed as compatible with Logitech Harmony One, Harmony 720 Pro, Harmony 880 Pro, Harmony 890 Pro, Harmony 900 Remote, Harmony 785, Harmony 890, and Harmony 900, along with several listed battery/part identifiers (including 190304-0004, HHD10010, NC1002 and other reference codes).
Before you buy, verify your original battery model and/or part number, not just your remote’s general model name. If the battery identifiers do not match, you could end up with a poor fit or the wrong electrical specifications.
Protection and charging expectations
The battery is described as having multiple safeguards, including protections for over-charge, over-discharge, over-voltage, over-current, and over-heating. These protections are intended to improve safety during use.
After installing a new battery, allow for a short break-in period. The manufacturer guidance notes best performance after a few complete charge and discharge cycles. Also consider charging habits. If you frequently leave the remote on a charger when it does not need charging, battery wear can increase over time.
Pros and cons, recap
Pros
- Restores operation in older Harmony remotes, with fit success mentioned frequently.
- Includes protection features designed for safer day-to-day charging and use.
- Direct replacement battery specs (3.7V, 950mAh) make it easier to match expectations.
Cons
- You must match the original battery part/model number for compatibility.
- Battery life performance may require a few full cycles to stabilize.
Price and availability
The listed price is shown in USD, and availability can vary by retailer and region. Because replacement batteries for older remotes can be offered in limited quantities, it’s worth checking the current listing before you commit to a long wait.
Alternatives to consider
If you cannot confirm a perfect part-number match, you may need to broaden your search. Alternatives to compare include:
- Exact OEM battery replacements: ideal when you have the original part number and want the closest specification match.
- Battery alternatives with verified part-number compatibility: only consider options that explicitly match your battery’s reference codes.
- Remote replacement or refurbishment: if you also have other remote issues beyond battery drain (buttons, charging port, or internal electronics), a different solution may be more cost-effective than multiple battery attempts.
Verdict
If you own a compatible Logitech Harmony remote and your original battery is no longer holding charge, this Li-ion replacement battery is a practical way to bring the remote back to daily use. The strongest reason to buy is the combination of direct spec matching, built-in protection, and buyer comments about correct fit and restored operation. Just be sure you confirm the original part or model number before ordering.
FAQ
How do I confirm this battery is compatible with my Harmony remote?
Check your original battery’s model or part number and compare it to the compatible references listed for this battery. Remote model names alone may not be enough.
What are the battery specs for this replacement?
It is listed as a 3.7V Li-ion battery with a 950mAh (3.52Wh) capacity.
Will a new battery charge to full immediately after installation?
Performance may improve after a few complete charge and discharge cycles, based on the installation guidance.
Does this battery include safety protections?
It is described as having multiple protections, including over-charge, over-discharge, over-voltage, over-current, and over-heating protection.
Is this good for restoring older, discontinued Harmony remotes?
It is intended specifically for multiple Harmony models, including older ones. Buyers commonly report restored usable operation when the replacement battery fits correctly.
Specifications
| Product Title | Li-ion Replacement Battery for Logitech Harmony One, Harmony 720 Pro, Harmony 880 Pro, Harmony 890 Pro, Harmony 900 Remote, Harmony 785, Harmony 890, Harmony 900, 190304-0004, HHD10010, NC1002 |
|---|---|
| Category | Electronics > GPS, Finders & Accessories > GPS System Accessories > Batteries |
| Brand | Cameron Sino |
| Manufacturer | CS Cameron Sino |
| Model Number | 190304-0004 |
| Additional Features | Ergonomic |
| Maximum Number of Supported Devices | 1 |
| Compatible Devices | Remotes |
| Connectivity Technology | Infrared |
| Button Quantity | 25 |
| Controller Type | Button Control |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Battery Type | Lithium-Ion |
| Warranty Description | 1 year |
| UPC | 633138343109 |
| Unit Count | 1 Count |
| Special Feature | Ergonomic |
| Max Number of Supported Devices | 1 |
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