3V 2032 CMOS Battery with Wire Leads and MOLEX Connector 5PACK
Quick take
This 5-pack provides 3V CR2032 CMOS batteries with wire leads and a Molex-compatible connector, designed to keep BIOS settings and the real-time clock (RTC) from resetting when your system is powered off. It is a good fit for specific Dell Alienware and related systems that use this connector style. The main caveat is installation fit, some buyers report the connector polarity may need careful attention.
Pros and cons
Pros
- Includes wire leads and a Molex-compatible connector setup, aimed at easier replacement versus loose coin cells.
- 3V CR2032 battery type with 240mAh capacity.
- Pack of 5 cells, useful for backup spares or multiple machines.
- Buyer feedback commonly reports it works well as a BIOS/CMOS replacement.
Cons
- Connector polarity or fit may not be plug-and-play on every PC, and may require careful connector orientation.
- Not rechargeable, charging it is described as dangerous.
What buyers think
Buyer-review evidence is limited but suggests this battery is generally effective for its intended purpose, with multiple mentions that it works as a replacement for a motherboard/CMOS battery setup. A recurring theme is usability, several shoppers describe easy installation and normal operation after swapping. One detailed note flags that on at least some Intel systems, the connector may require minor connector-side adjustment to correct polarity, which points to the need for careful installation rather than assuming every system will be identical.
What this battery is for
A CMOS battery primarily supports two things when the computer is off: it helps preserve hardware configuration settings stored in BIOS/CMOS, and it powers the BIOS real-time clock (RTC) so your system keeps accurate time. When that battery fails, symptoms can include losing BIOS settings, incorrect system time, or boot-related issues tied to configuration.
Key specs that matter for compatibility
- Battery type: CR2032 (3V)
- Capacity: 240mAh
- Form factor: 20.5mm diameter, 6.5mm height (battery cell size)
- Leads: 2 wires with about 65mm wire length
- Connector: CR2032-MX51021, compatible with Molex 51146
- Pack size: 5 batteries
Best for, and who should avoid it
Best for
- Owners of systems that specifically use a CR2032 CMOS battery with wire leads and a Molex-compatible connector.
- PC builders or repair-focused users who want spares on hand, since the pack includes five cells.
- Anyone troubleshooting BIOS/CMOS reset or RTC clock drift symptoms and confirming the battery connector style matches.
Who should avoid it
- Buyers who need a rechargeable CMOS backup, this is described as not meant to be charged.
Pros and cons (practical decision points)
Pros
- Targeted connector setup: Wire leads and a Molex-compatible connector are included, reducing guesswork compared with sourcing a bare coin cell.
- Value in quantity: A 5-pack can be more economical if you maintain multiple systems or want a backup.
- Works as a replacement: Multiple buyers describe successful operation after installation.
Cons
- Not guaranteed plug-and-play for every motherboard: Connector polarity or fit might require careful handling in some cases.
- Single-use, not rechargeable: If your current battery or workflow depends on recharging, this will not match that expectation.
Buying checklist before you order
- Confirm CR2032 (3V) requirement: This battery is CR2032-type and expects a 3V coin cell role.
- Check the connector type: Ensure your motherboard or laptop uses the Molex 51146 style compatible connector.
- Plan for safe installation: Because some setups may require careful connector polarity orientation, take your time and verify orientation before powering back on.
- Do not attempt to charge: The product guidance warns that charging these cells is dangerous.
- Think about storage: For long-term storage, it recommends keeping cells in a mid state (about 40% to 60% charged) and storing in a cool, dry place, with a recheck interval after receipt.
Alternatives to consider
Because this battery is defined by its connector and lead configuration, the main alternative path is choosing a CMOS battery that matches your exact motherboard connector style. If your system accepts a standard CR2032 with a different holder or connector, you may be able to use a simpler replacement coin-cell with the right adapter. If your system expects wire leads with a specific Molex-style connector, buying something without that connector alignment usually creates extra work (and risk) during installation.
Verdict
Choose this 5-pack if you need a CR2032 CMOS replacement that comes with wire leads and a Molex-compatible connector, especially for compatible Dell Alienware and related system configurations. It is a practical, quantity-friendly option, but double-check connector orientation and fit before installing, since polarity correction may be necessary on some setups.
FAQs
Is this battery rechargeable?
No. It is described as not chargeable, and charging it is stated as dangerous.
What is the voltage and type of this CMOS battery?
It is a 3V CR2032 battery with a listed capacity of 240mAh.
Does it come with wire leads and a connector?
Yes. It includes two wire leads (about 65mm) and a connector setup described as compatible with Molex 51146 (CR2032-MX51021).
Will this work as a BIOS/CMOS replacement battery?
It is designed for that purpose, helping preserve BIOS/CMOS settings and supporting the BIOS real-time clock (RTC) so time and configuration do not reset when the system is powered off.
Are there any compatibility caveats I should know?
The main practical caveat is connector polarity or fit. Some systems may require careful connector orientation or minor connector-side adjustment, so take time to verify the correct polarity before powering back on.
How many batteries are included?
The pack includes five batteries.
Specifications
| Product Title | 3V 2032 CMOS Battery with Wire Leads and MOLEX Connector 5PACK |
|---|---|
| Category | Electronics > Computers & Accessories > Laptop Accessories > Batteries |
| Brand | QLQXQTy |
| Manufacturer | QLQXQTy |
| Model Name | CR2032 |
| Model Number | CR2032 |
| Item Weight | 0.01 Pounds |
| Number of Batteries | 5 Lithium Metal batteries required. (included) |
| Warranty Description | 3 |
| Battery Cell Type | Lithium Manganese Dioxide |
| Battery Capacity | 240 Milliamp Hours |
| Voltage | 3 Volts |
| Reusability | Single Use |
| Amperage | 1.5 Amps |
| Unit Count | 5.0 Count |
| Battery Weight | 3.5 Grams |
| Item Dimensions | 0.13 x 0.79 x 0.79 inches |
| Antenna Location | Laptop |
| Battery Cell Composition | Lithium Manganese Dioxide |
| Recommended Uses For Product | Laptop |
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