APC Back-UPS Pro External Battery Pack (for 1500VA Back-UPS Pro models, formerly Back-UPS RS 1500) - APC USA
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APC External Battery Pack for Smart-UPS Extended Run X-Series, 48V, 4U Rackmount/Tower Convertible (SMX120BP) - Newegg.com
![APC Back-UPS Pro 1500VA 10-Outlet/2-USB Battery Back-Up and Surge Protector Black BN1500M2 - Best Buy APC Back-UPS Pro 1500VA 10-Outlet/2-USB Battery Back-Up and Surge Protector Black BN1500M2 - Best Buy](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/6165/6165881_sd.jpg)
APC Back-UPS Pro 1500VA 10-Outlet/2-USB Battery Back-Up and Surge Protector Black BN1500M2 - Best Buy
![APC External Battery Pack for Smart-UPS Extended Run SMX-Series (up to 1500 VA), 48V, 2U Rackmount/Tower Convertible (SMX48RMBP2U) - Newegg.com APC External Battery Pack for Smart-UPS Extended Run SMX-Series (up to 1500 VA), 48V, 2U Rackmount/Tower Convertible (SMX48RMBP2U) - Newegg.com](https://c1.neweggimages.com/ProductImage/42-101-384-02.jpg)