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Your cart is empty. Model Description: New compatible replacement battery for the APC Back UPS NS Network 40 BN4001
Compatibility: BN4001
Condition: New, Fresh Stock
Includes: (1) BN4001 Compatible Replacement Battery
Warranty: 1 Year Warranty
Life time expectancy: 3-5 years
Manufacturer: UPS Battery Center Ltd
The APC BN4001 compatible replacement battery is a high quality UPS Battery Center manufactured battery that provides excellent performance and long life in UPS devices.
Our batteries are new and always fresh stock. The BN4001 compatible replacement battery is covered by our industry leading 1 year replacement warranty.
Connie
Reviewed in the United States on March 1, 2025
works well, good replacement battery to save having to purchase a completely new battery backup.
Christopher Erwin
Reviewed in the United States on February 6, 2025
Bought this to replace the batteries in a rack-mount Tripp-Lite UPS. They lasted less than 5 months and are now non-functional. Waste of money.
MDW/SKW
Reviewed in the United States on May 30, 2024
Battery uses side verses top connectors and is 1/16 inch longer. Overall it is fit under the seat and once installed nobody knows. Harley wanted $250 and this was less than $50. So YES I'm happy to be back on the road at this cost.
Arxmag
Reviewed in the United States on March 19, 2024
Size matched as expected. Works. Hopefully will last as long as OEM. Great value.
Keith Julson
Reviewed in the United States on February 21, 2024
If you have a different UPS then this battery is not the right one. for you as it is designed to fit the Back-UPS Network 40 model #BN4001. I have four (4) UPSs in my house -- three for computers and one for my living room TV in case the power goes out. A few weeks ago the red replace battery light came on as well as a loud beeping, indicating time to replace the battery. Ordered this and it was delivered about a week later. As some have already commented, the negative terminal on the battery is not as wide as the negative connector on the UPS but it will fit nonetheless and once the battery is inserted into it's compartment, the terminal lead will not move. This battery works as advertised. RECYCLE NOTE: as with a previous UPS battery I replaced a couple years ago, this one also went to Lowe's for recycle. I recommend this seller and the battery.
Mori - Gardena, CA
Reviewed in the United States on April 6, 2024
Been a month, so far so good! Perfect replacement for my UPS BN4001. As soon as it arrived, I hooked it up and plugged it in. I let it charge fully for 24hours, before I plugged anything into it. Happy it works again, I would buy again.
Ben Breckon
Reviewed in the United States on September 14, 2023
Even though their product description does not list the battery dimensions, I took a chance and ordered the battery for the APC Back-UPS NS Network 40 BN4001 because they describe it as fitting this unit, but in reality you never know until you receive the product and try it. The battery fit perfect and solved the problem with my UPS, which would not work because the original battery failed. The terminals are hot F2 and neutral F1, so I had to be careful that the negative lead fit securely on the smaller F1 terminal.
Joeyslaptop
Reviewed in the United States on December 13, 2023
So far so good. It works and was relatively easy to install and replace the old one. If I remember right, we disposed of the old one at our local office-supply store for free.
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