Is this battery the same as a 3v cr2016 type battery? that is what my laptop currently has.

You need to focus on the connector specification.CR2016,means,diameter of battery is 20mm,and thickness is 1.6mm. Ml1220,means diameter is 12mm,thickness is 2.0mm.

What are the dimensions? thickness and diameter. NOT the package dimensions (useless information),

Ml1220,means diameter is 12mm,thickness is 2mm.Please check the connector.Please don't buy to try if you are not sure the connector specification.

Will this product work in my asus k556u notebook/intel core i7?

we are not sure...please check the connector specification.this one,has,2 pins and 2 wires.pitch is 1.25mm.

Will this fit samsung np- rf511 cmos bios battery and cable?

we are not sure.please check the connector specification.this one,has 2 pins and 2 wires.the pitch is 1.25mm.

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LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully

Product ID: 163067216

Details

Battery Capacity
17
Battery Cell Composition
Lithium
Brand
LeFix
Number of Batteries
1 CR2
Recommended Uses For Product
Clock Laptop

⚡8mA Max Pulse Discharge

🔋3V Rechargeable Power

🔌2-Pin Connector with Leads

Description

🔋 Power your system’s soul with LeFix ML1220 — never miss a beat!

COMPACT LIGHTWEIGHT - Slim 12.5 x 2mm size and just 5.5g weight—perfect for sleek laptops and notebooks.
PRECISION 2 PIN CONNECTOR - Plug-and-play design with 2 wires and 1.25mm pitch ensures seamless motherboard compatibility.
WIDE DEVICE COMPATIBILITY - Trusted replacement for Acer, Asus, Toshiba, Samsung, and more—upgrade your device’s heart today.
FIX CRITICAL SYSTEM ERRORS - Eliminate annoying CMOS checksum, system timer, and real-time clock errors instantly.
RELIABLE 3 V RECHARGEABLE BATTERY - Keep your laptop’s BIOS error-free and ticking smoothly with a long-lasting 3V power source.

The LeFix ML1220 is a rechargeable 3V CMOS battery designed to replace faulty laptop and motherboard RTC batteries. Featuring a compact 12.5 x 2mm form factor, 17mAh capacity, and a 2-pin connector with leads, it resolves BIOS errors like system battery failure and CMOS checksum issues. Compatible with popular laptop models from Acer, Asus, Toshiba, and Samsung, this lightweight 5.5g battery ensures reliable real-time clock performance and system stability.

Specifications

ASIN	B07XQSMNPG
Amperage	3 A
Antenna Location	Clock, Laptop
Battery Capacity	17 milliamp_hours
Battery Cell Type	Lithium Manganese Dioxide
Battery Weight	4 g
Best Sellers Rank	#63,767 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #4,374 in Laptop Batteries
Brand	LeFix
Compatible Phone Models	For Certain laptop Models
Customer Reviews	4.0 4.0 out of 5 stars (101)
Item Dimensions	1.77 x 0.47 x 0.08 inches
Item Weight	5.5 g
Manufacturer	LeFix
Model Name	ml1220
Model Number	ML1220
Number of Batteries	1 CR2 batteries required. (included)
Reusability	Rechargeable
UPC	655160982156
Unit Count	1 Count
Voltage	3 volts

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