--- product_id: 41162454 title: "850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics," brand: "apc" price: "€ 495.73" currency: EUR in_stock: true reviews_count: 13 category: "Apc" url: https://www.desertcart.hr/products/41162454-850va-510w-pro-ups-backup-battery-power-supply-for-office store_origin: HR region: Croatia --- # 29+ min backup at 100W load 850VA / 510W power capacity 8 protected outlets (4 battery + 4 surge) 850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, **Brand:** apc **Price:** € 495.73 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Stay powered, stay productive β€” never miss a beat! ## Quick Answers - **What is this?** 850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, by apc - **How much does it cost?** € 495.73 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/41162454-850va-510w-pro-ups-backup-battery-power-supply-for-office) ## Best For - apc enthusiasts ## Why This Product - Trusted apc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Extended Runtime:** Over 29 minutes of backup at 100W load keeps your workflow uninterrupted. - β€’ **Power When It Counts:** 850VA/510W capacity ensures your critical devices stay online during outages. - β€’ **Comprehensive Protection:** 8 outlets with surge and battery backup plus coaxial & Ethernet surge protection. - β€’ **Smart Voltage Regulation:** Automatic Voltage Regulation (AVR) stabilizes voltage without draining battery life. - β€’ **Sustainable & Serviceable:** Energy Star certified with user-replaceable battery for zero downtime and eco-friendly efficiency. ## Overview The APC 850VA/510W Pro UPS Backup Battery Power Supply delivers reliable short-term power backup and surge protection for office electronics. Featuring 8 protected outlets, over 29 minutes of runtime at 100W, and Automatic Voltage Regulation, it safeguards your devices from outages and voltage fluctuations. Energy Star certified and equipped with a user-replaceable battery, it combines efficiency with long-term serviceability to keep your essential tech running smoothly. ## Description This APC UPS battery backup & surge protector (Back-UPS Pro BX850M) is a battery backup built for computers, routers, wireless networks, workstations, and home entertainment electronics. As a UPS battery backup and computer uninterruptible power supply unit, this battery backup surge protector automatically switches to backup power the moment it detects an outage or unsafe voltage fluctuation β€” keeping your uninterruptible power supply running and your data protected from damaging power surges and spikes. This backup battery power supply is a trusted UPS power supply for computer, external hard drive, and router setups β€” a reliable battery backup for computer use so you stay connected and your data stays safe even when the power doesn't. As a back up battery power supply, this 850VA UPS features Automatic Voltage Regulation (AVR) to correct brownouts and overvoltage without draining the ups battery, and is compatible with Active PFC power supplies for reliable performance with modern computers. This upc battery backup & surge protector uses a user-replaceable ups battery (APC Replacement Battery Cartridge RBC17, sold separately), so your battery back up and surge protection keeps performing at full strength β€” no need to replace the entire backup battery unit.. Review: Good product, disappointing (Supplier) support - This is my 2nd APC UPS backup. The first is over two years old and has performed flawlessly supporting a high-end workstation. I bought this 2nd, somewhat smaller model for my office PC. I was pleased with my purchase for six weeks until the first blackout intervention due to a thunderstorm. The UPS did not survive, when the power was restored the device insisted there was a short on the output, which of course there wasn't. The total load on the output is less than 30% of the rating, but even with the load removed it still alarmed. This began a three week adventure: - desertcart does not allow a defective return-replacement (because of the batteries I assume). Beware. - APC has a 3 year warranty but their support process is agonizing. I spent several hours in chat-windows answering inane questions like 'Is it plugged in?' or 'Are you sure there is no short on the output?' At one point the agent (who was obviously multi-tasking) picked the wrong chat-window to type to another customer. That was interesting to sort out. - I finally found someone with a brain who started a swap-process. APC would send a replacement and I would return the defect. - The replacement arrived 10 days after the failure event. I installed it and everything was fine. I re-packaged the defect in the shipping box. But there was no information about where to send it. - Another week passed before I got an email with a pre-paid return label as a pdf attachment. I assume the original item was an infant-mortality so Five Stars for the product. Battery life is over 20 minutes with my load and the PowerChute software puts the system to sleep before the UPS runs dry. It's an imperfect world: screws fall out. Time will tell if this was an isolated event or a chronic problem, but up to now I am optimistic. Review: Works great- as advertised. APC is a quality UPS brand. - ACP Brand is always good. I have 4 in my home office (Work computer, Stable Diffusion dedicated computer, network infrastructure, and electronic music devices). Word of advice, these are not for sustained usage during an outage for a standard desktop. (Which should be obvious to people). Just keep your computer on it, and just one monitor, so if they power goes out, you can save your work and turn off the machine. Make sure non-essential items are on the non-battery-backup plugs. Works great for intermittent outages. Also, waking up in the middle of the nights to beep beep beep-- I don't have to check to see if the power is out-- (not complaining about the noise). It's calm enough to be informative yet alerting. ## Features - 850VA / 510W RELIABLE BACKUP POWER: Delivers short-term battery power to keep essential devices powered during blackouts, surges, and unexpected power interruptions - STAY CONNECTED WHEN IT MATTERS MOST: Provides over 29 minutes of backup runtime at a 100W loadβ€”keeping computers, TVs, DVRs, Wi-Fi routers, modems, external drives, NAS systems, and smart home devices powered during outages - EIGHT PROTECTED OUTLETS: Power your entire setup with 4 battery backup outlets for essential devices, plus 4 surge-only outlets for peripherals-plus built-in coaxial and Ethernet surge protection for added peace of mind - AUTOMATIC VOLTAGE REGULATION (AVR): Corrects low voltage brownouts (88V+) and surges (+/-13%) without draining battery-boosts or trims to stable 120V. Extends runtime for blackouts; Active PFC compatible for gaming PCs - REPLACEABLE BATTERY & ENERGY STAR UPS: User-replaceable battery (RBC17, sold separately) for zero-downtime swaps. ENERGY STAR certified for 92%+ efficiency, cutting energy costs vs standard UPS units ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06WP9Q8ZN | | Amperage | 16 | | Battery Cell Composition | Lead Acid | | Battery Cell Type | Lead Acid | | Best Sellers Rank | #18 in Computer Uninterruptible Power Supply Units | | Brand | APC | | Built-In Media | UPS^User Manual^USB Cable^Coaxial Cable | | Color | Black | | Connector Type | NEMA 5-15P (power cord), NEMA 5-15R (outlets) | | Customer Reviews | 4.6 out of 5 stars 795 Reviews | | Enclosure Material | Plastic | | Form Factor | Tower | | Global Trade Identification Number | 00731304331797 | | Input Voltage | 120 volts_of_alternating_current | | Item Dimensions | 12.2 x 3.58 x 7.48 inches | | Item Dimensions D x W x H | 17.3"D x 9.8"W x 5.7"H | | Item Type Name | battery backup UPS | | Item Weight | 15 pounds | | Manufacturer | APC | | Material | Plastic | | Maximum Power | 510 watts | | Mfr Part Number | BX850M | | Model Number | BX850M | | Number of Items | 1 | | Number of Outlets | 8 | | Output Current | 16 A | | Output Voltage | 120 volts_of_alternating_current | | Output Wattage | 510 watts | | Power Plug Type | Type B - 3 pin (North American) | | Product Dimensions | 17.3"D x 9.8"W x 5.7"H | | Runtime | 6 minutes | | Surge Protection Rating | 1103 Joules | | UPC | 731304331797 | | Unit Count | 1 Count | | Voltage | 120 volts | | Warranty Description | 3 Year | | Wattage | 510 watts | ## Product Details - **Battery Cell Composition:** Lead Acid - **Brand:** APC - **Color:** Black - **Product Dimensions:** 17.3"D x 9.8"W x 5.7"H - **Voltage:** 120 volts ## Images ![850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, - Image 1](https://m.media-amazon.com/images/I/61hdc81zZ1L.jpg) ![850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, - Image 2](https://m.media-amazon.com/images/I/5167gkClNtL.jpg) ![850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, - Image 3](https://m.media-amazon.com/images/I/51KXchkY9TL.jpg) ![850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, - Image 4](https://m.media-amazon.com/images/I/619GAV4HYiL.jpg) ![850VA/510W Pro UPS Backup Battery Power Supply for Office Electronics, - Image 5](https://m.media-amazon.com/images/I/61NMmHJ9fgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How long will this UPS power my system when the power goes out?** A: Runtimes of any UPS will vary based on the amount of power required by your connected devices. **Q: Will the UPS automatically switch off from the battery backup when power is restored?** A: Yes, when adequate power is restored to the UPS and is within the operating voltage range of the UPS, it will revert to passing utility power to connected electronics. **Q: My UPS is on, but my power button is blinking and beeping.** A: The battery needs to be connected first. Please read the user manual for instructions on connecting the battery. **Q: Can I plug the UPS into an extension cord, or does it have to be plugged into a wall outlet?** A: To get the best power available, your UPS should be plugged directly into the wall outlet. Plugging your UPS into a surge protector may cause the UPS to go to the battery often when it usually should remain offline. **Q: Is this UPS battery user-replaceable?** A: Yes, It is compatible with a dedicated user-replaceable battery, and the APC replacement battery cartridge helps restore UPS performance to the original specifications. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product, disappointing (Supplier) support *by M***L on August 1, 2019* This is my 2nd APC UPS backup. The first is over two years old and has performed flawlessly supporting a high-end workstation. I bought this 2nd, somewhat smaller model for my office PC. I was pleased with my purchase for six weeks until the first blackout intervention due to a thunderstorm. The UPS did not survive, when the power was restored the device insisted there was a short on the output, which of course there wasn't. The total load on the output is less than 30% of the rating, but even with the load removed it still alarmed. This began a three week adventure: - Amazon does not allow a defective return-replacement (because of the batteries I assume). Beware. - APC has a 3 year warranty but their support process is agonizing. I spent several hours in chat-windows answering inane questions like 'Is it plugged in?' or 'Are you sure there is no short on the output?' At one point the agent (who was obviously multi-tasking) picked the wrong chat-window to type to another customer. That was interesting to sort out. - I finally found someone with a brain who started a swap-process. APC would send a replacement and I would return the defect. - The replacement arrived 10 days after the failure event. I installed it and everything was fine. I re-packaged the defect in the shipping box. But there was no information about where to send it. - Another week passed before I got an email with a pre-paid return label as a pdf attachment. I assume the original item was an infant-mortality so Five Stars for the product. Battery life is over 20 minutes with my load and the PowerChute software puts the system to sleep before the UPS runs dry. It's an imperfect world: screws fall out. Time will tell if this was an isolated event or a chronic problem, but up to now I am optimistic. ### ⭐⭐⭐⭐⭐ Works great- as advertised. APC is a quality UPS brand. *by O***3 on May 20, 2026* ACP Brand is always good. I have 4 in my home office (Work computer, Stable Diffusion dedicated computer, network infrastructure, and electronic music devices). Word of advice, these are not for sustained usage during an outage for a standard desktop. (Which should be obvious to people). Just keep your computer on it, and just one monitor, so if they power goes out, you can save your work and turn off the machine. Make sure non-essential items are on the non-battery-backup plugs. Works great for intermittent outages. Also, waking up in the middle of the nights to beep beep beep-- I don't have to check to see if the power is out-- (not complaining about the noise). It's calm enough to be informative yet alerting. ### ⭐⭐⭐⭐⭐ Tested Under (Lightning) Fire *by G***S on March 18, 2026* Lightning struck 3 houses down and fried our modem through the coax line, which also caused the ethernet-in port on our router to go dead. My computer, however, was protected with the APC Back-UPS Pro 850VA and was totally isolated (thank you wi-fi!) I could hear it click over into emergency power as soon as I saw the lighting flash, so I consider this to be tested under fire. The companion software is visually bare-bones but otherwise works great with Windows 11, the app runs quietly in the background and doesn't use much of anything, and is very programmable with the UPS. For mine, if the power is out for 60 seconds, my computer is sent a command to hibernate. Maybe less important, but I hear this protecting my computer from 'dirty power' at times as well. Outside of the regular testing interval, I hear the relays click on the rare occasion the lights slightly dim as well. Unit has been in service for 3.5 years and still performs wonderfully. I like how it's incredibly quiet (UPS of old would alarm annoyingly). ## Frequently Bought Together - APC Battery Backup Surge Protector, BX850M Backup Battery Power Supply, AVR, Dataline Protection,12.2 x 3.58 x 7.48 inches (Black) - APC UPS Replacement Battery RBC17 for APC Back-UPS Models BE650G1, BE750G, BR700G, BE850M2, BE850G2, BX850M, BE650G, BN600, BN700MC, BN900M, BVK950M2, BVN950M2 and select others - APC UPS Battery Backup and Surge Protector, 600VA/330 Watts Backup Battery Power Supply, BE600M1 Back-UPS with USB Charger Port --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/41162454-850va-510w-pro-ups-backup-battery-power-supply-for-office](https://www.desertcart.hr/products/41162454-850va-510w-pro-ups-backup-battery-power-supply-for-office) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-02*