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Description
Replacement Battery for Lenovo IdeaPad U450A, U450P 20031, U450P 3389, U550, 57Y6309 (10pc)4400mAh Battery for Lenovo IdeaPad U450A, IdeaPad U450P, IdeaPad U450, IdeaPad U550, IdeaPad U550A. Specifications: Attention: For the new battery, we suggest all of our customers fully charge it by AC power adapter. Maybe it take a long period, the capacity was strain out by inner PCB circuit. In order to protect your battery life, you can fully charge it to 100% and drain to 2% ,it's a cycle and the capacity will recover. it's better to make normal
4400mAh Battery for Lenovo IdeaPad U450A, IdeaPad U450P, IdeaPad U450, IdeaPad U550, IdeaPad U550A.
Specifications:
- Attention: For the new battery, we suggest all of our customers fully charge it by AC power adapter. Maybe it take a long period, the capacity was strain out by inner PCB circuit. In order to protect your battery life, you can fully charge it to 100% and drain to 2% ,it's a cycle and the capacity will recover. it's better to make normal use after 2 cycles and charge the battery regularly at least once a month.
- Battery Type: Li-ion Voltage: 14.8V; Capacity: 4400mAh; Cells: 8-cell Color: Black;
- 100% Brand New Cells. Rechargeable Up to 500 cycls over life of battery; High energy efficiency and extended battery life.
Compatible with the following models:
IdeaPad U450A, U450P, U550, U550A
Compatible with the following part numbers:
L09S8D21
L09L8D21
L09L4B21
L09S4B21
Note: Not all P/N & compatible models are listed here.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Outlet extender
I love this product. Work great behind my couch so i don't have to leave a gap between the wall and couch. Very sturdy, and stable. Holds plugs in place.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Exelent choice no more hinging cables
I recently purchased the EZ Outlet Electrical Outlet Extender, and it has been a total game-changer for my home. I have a few outlets behind furniture and in tight corners that are almost impossible to use, and this product solved that problem instantly.
The extender itself feels very sturdy and well-made. The most useful feature is the flexible, gooseneck-like arm that lets you bend the outlet away from the wall. This allowed me to easily plug in my lamp and a few other devices that were previously unreachable.
I also love the extra ports. The two regular AC outlets, a USB-A port, and a USB-C port are incredibly convenient. It's great to be able to charge my phone and my laptop from the same spot without needing a separate charging block. The USB-C port is particularly fast, which is a huge bonus.
Setup was as easy as plugging it in. There's no complicated wiring or anything to deal with. It's a simple, elegant solution that works exactly as advertised. If you have any hard-to-reach outlets in your home, I highly recommend this product. It's well worth the investment.
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Reviewed in the United States on September 24, 2025
★★★★★ 4
Looks good, adjustability is super nice
This is attractive (for what it is) and is working well, I really like the adjustability - the only downside so far is that the USB ports are on the underside where I'm using it, so are basically unusable on a regular basis unless you want to leave a cable dangling from it, tho if you had it run up or to the right from the outlet, that wouldn't be a factor.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Its Quality
I absolutely love this! It’s a life changer for me as I’m always pulling the cord out from the wall in the attempt to stretch it. This now sits plug now sits perfectly between my bed and the wall. Excellent quality, easy to plug in and makes my life easier!
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Nice length and looks good
Bought two different types/brands of outlet extenders, overall I like this better out of the two when it comes to looks and functionality. This one you plug it in then rotate the outlet to the spot you need. One adhesive pad holds it in place easily due to light weight and trim materials. You can still plug something else in the wall outlet, this only takes up one of the outlets. It would be great if they added usb plugs to this like the other one.
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Reviewed in the United States on April 14, 2026