APC BK350EI

Overview

The APC BK350EI is an uninterruptible power supply designed to provide reliable backup power and surge protection for essential electronics and computers. It operates at 230V input and output, making it suitable for regions with this voltage standard. With a capacity of 350VA/210W and up to 23.4 minutes of runtime at half load, it ensures you have enough time to save your work and safely power down your devices during outages.

This compact tower UPS includes four IEC C13 outlets, three of which offer battery backup while one is dedicated to surge protection. It features USB and serial connectivity for easy monitoring and management, along with an intelligent battery management system and automatic self-test to maintain battery health and alert you to any issues. The user-replaceable lead-acid battery adds convenience by allowing you to extend the unit’s lifespan without professional help.

Key features

• Provides backup power to keep essential devices running during power interruptions
• Surge protection with 310 joules to guard connected equipment from voltage spikes
• USB and serial ports enable seamless communication with your computer for power status monitoring and automatic shutdown
• Automatic self-test function ensures the UPS is ready when you need it and alerts you to battery problems
• User-replaceable battery design allows easy maintenance and extends the UPS’s operational life
• Compact tower form factor fits well in home offices or small business setups with limited space
• Multiple outlets with dedicated battery backup and surge-only options for flexible device connections

Key specs

• Capacity: 350VA / 210W
• Input voltage: 230V
• Output voltage: 230V
• Outlets: 4 IEC C13 (3 battery backup, 1 surge protection only)
• Surge protection energy rating: 310 joules
• Runtime at half load: up to 23.4 minutes
• Battery type: user-replaceable lead-acid
• Connectivity: USB and serial ports

Connectivity and compatibility

The UPS offers both USB and serial ports, allowing it to connect easily with a wide range of computers for monitoring power conditions and managing automatic shutdowns. This ensures your system can respond promptly to power events, reducing the risk of data loss or hardware damage. The IEC C13 outlets support standard power cables commonly used with desktop computers, monitors, and networking equipment.

Ideal uses and environments

This UPS is well suited to home offices, small businesses, and other environments where space is limited but reliable power backup is critical. It supports essential electronics such as desktop PCs, routers, modems, and external storage devices. The combination of battery backup and surge protection helps maintain productivity and protect valuable equipment during power fluctuations and outages.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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