I recently purchased this battery but when i boot up i get an error saying it is not supported. i have a lenovo thinkpad w540

We experienced the similar issue on a Lenovo Thinkpad. Apparently, Lenovo is embedding a chip in the laptops that confirms that their batteries are compatible with the newest standard. Anyhow, we just ignored the message and the battery has been working fine.

My current battery # for lenovo thinkpad w541 is 45n1779. i see this battery lists as comparable. can you confirm?

I cannot as mine is 540P. I would try searching on the 45n1779 or the part number.

How long is the warranty? I purchased this battery on 9-Sep-2019 and it failed today (29-May-2020) after 8 months.

Dear friend, I'm sorry, and we have a 12-month warranty, please feel free to contact me, I will replace a new battery for you immediately, sorry again. Looking forward to hearing from you.

Is this RoHS compliant, or otherwise lead and mercury-free?

I have no idea. All I know is that it works.

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🔋 Power Your Potential with Every Charge!

SAFETY FIRST - Built-in circuit protection ensures your device stays safe and stable.
FAST CHARGING TECHNOLOGY - Get back to work faster with Grade A cells that charge quickly and efficiently.
POWER UP YOUR PRODUCTIVITY - Experience uninterrupted work sessions with our high-capacity battery.
12 MONTH REPLACEMENT GUARANTEE - Shop with confidence knowing we’ve got your back for a whole year!
24 7 SUPPORT AT YOUR FINGERTIPS - Our dedicated team is here to assist you anytime, ensuring peace of mind.

The 9 Cell 57++ New Battery Replacement for Lenovo ThinkPad models T440P, T540P, W540, W541, L440, and L540 offers a robust 11.1V voltage and an impressive 8960mAH capacity. Designed with Grade A cells for fast charging and low power consumption, this rechargeable lithium-ion battery ensures safety and stability with built-in circuit protection. Plus, enjoy 24/7 email support and a 12-month replacement guarantee for ultimate peace of mind.

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Received my product in pristine condition. Great service overall.

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Antenna Location	Laptop
Item Weight	0.52 Kilograms
Battery Weight	300 Grams
Item Dimensions	10.63 x 4.72 x 1.18 inches
Unit Count	1 Count
Battery Cell Type	Lithium Ion
Battery Capacity	8960 Milliamp Hours
Reusability	Rechargeable
Voltage	11.1 Volts

9 Cell 57++ New Battery Replacement for Lenovo ThinkPad T440P T540P W540 W541 L440 L540 45N1152 45N1153 0C52864 11.1V 8960mAH1

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