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Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable

Name: Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable
Brand: Rome Tech
SKU: 523926684
Price: 158.07 BRL
Availability: InStock
Rating: 1.6666666666666667 (3 reviews)

Product ID: 523926684

Details

Battery Capacity
225 Milliamp
Battery Cell Composition
Other Than
Brand
Rome Tech
Number of Batteries
1 C batteries
Recommended Uses For Product
Laptop

⚡2.6-2.8V initial voltage, recharges to 3.0V

🔋Rechargeable RTC backup

🛠️Quick 10-min installation with 2-wire cable

R$158

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

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Description

🔋 Power your precision with Rome Tech’s rechargeable CMOS battery—because your laptop deserves the best backup!

PRECISION COMPATIBILITY - Specifically engineered for Dell Precision 5510, 5520, 5530, 5540, and Latitude 5290 2-in-1 models for seamless integration.
HASSLE FREE INSTALLATION - Swap your old CMOS battery in just 10 minutes with the included 2-wire cable—no tech expertise required.
PREMIUM QUALITY ASSURANCE - Built with high-caliber heat shrink protection for durability and backed by responsive customer service to resolve any issues.
RELIABLE RECHARGEABLE POWER - Keep your Dell Precision or Latitude running with a CMOS battery that recharges itself to optimal voltage, ensuring long-term RTC backup.
COMPACT LIGHTWEIGHT DESIGN - Ultra-small 3g unit fits effortlessly inside your laptop without bulk, maintaining sleek device aesthetics.

The Rome Tech ML1220 CMOS BIOS Battery is a rechargeable 3V backup battery designed for Dell Precision 5510, 5520, 5530, 5540, and Latitude 5290 2-in-1 laptops. It arrives at 2.6–2.8V and recharges to 3.0V after installation, ensuring reliable real-time clock functionality. Compact and lightweight, it features a 2-wire cable for quick installation and is protected by high-quality heat shrink for durability. Ideal for professionals seeking a dependable BIOS power solution with easy replacement.

Specifications

ASIN	B0BSGSWHM2
Antenna Location	Laptop
Battery Capacity	225 milliamp_hours
Battery Cell Composition	Other Than Listed
Battery Cell Type	Other Than Listed
Battery Weight	3 g
Best Sellers Rank	#8,705 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #379 in Laptop Batteries
Brand	Rome Tech
Compatible Phone Models	Dell Precision 5510 / Dell Precision 5520 / Dell Precision 5530 / Dell Precision 5540 ? / Dell Latitude 5290 2-in-1
Customer Reviews	2.9 out of 5 stars 5 Reviews
Included Components	battery
Manufacturer	Rome Tech
Model Name	ml1220
Model Number	22SLIMPNML1220S
Number of Batteries	1 C batteries required. (included)
Recommended Uses For Product	Laptop
Reusability	Single Use
UPC	712302251898
Unit Count	1 Count
Voltage	3 volts
Warranty Description	30 Days

Reviews

L**R

Deceiving. Not 3 Volts battery.

This battery is advertised as a 3 Volts but it only has 2.61 Volts upon arrival. Deceiving. The original battery that I am replacing has 2.6 volts but the laptop has good 5 years or more of use, doesn’t make sense to replace with this supposedly “new” battery and doesn’t make sense why the sellers advertise something as 3 Volts if it only has 2.61 volts. Very disappointing. I don’t recommend.

6.01.2025

S**N

Low voltage

I measured voltage is 2.6 Volts not 3 volts . I returned.

6.12.2024

W**L

Ordered New, Recieved used instead.

14.10.2025

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R$158

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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