The Best Backup Batteries

The APC BE600M1 is a compact uninterruptible power supply (UPS) designed for home offices, providing battery backup and surge protection to keep computers, Wi-Fi routers, and other essentials running during power interruptions. It's ideal for American homeowners in regions prone to storms, brownouts, or grid fluctuations, ensuring uninterrupted internet and safe device shutdowns.

Standout features include 5 battery-backed outlets for critical gear, 2 surge-only outlets for peripherals, and a USB charging port that works offline to power phones. At a 100W load, it delivers about 23 minutes of runtime, ample for most home scenarios, while surge safeguards protect against everyday power events. The design emphasizes durability with easy battery swaps using affordable replacements, promoting long-term value in varying US climates.

Build quality reflects APC's reputation for reliability, with well-spaced outlets that accommodate bulky adapters and a sleek, desk-friendly footprint. It performs consistently in real-world home settings, guarding against unexpected outages that disrupt work or connectivity. Drawbacks include shorter runtime for higher wattage devices and the eventual need for battery upkeep.

Overall verdict: A smart, affordable choice for basic home office power protection, delivering peace of mind without complexity.

• Dependable short-term power for critical home network gear during frequent US outages
• Comprehensive surge protection adds peace of mind for valuable electronics
• Easy setup and maintenance suit busy homeowners without technical expertise
• Strong warranty and equipment coverage provide extra assurance
• Versatile outlets handle multiple devices in typical home office environments

• Runtime drops quickly under heavier loads beyond 100W, limiting use for power-hungry setups
• Battery replacement requires separate purchase after years of use
• Not suited for extended outages or high-capacity server needs

The CyberPower CP1500PFCLCD stands out as a premium mini-tower UPS tailored for American homeowners powering desktop computers, gaming setups, workstations, networking gear, and home theater systems. With 1500VA/1000W capacity and pure sine wave output, it excels at supporting active PFC power supplies found in modern high-end electronics, ensuring smooth operation without compatibility hiccups during outages.

Key strengths include Automatic Voltage Regulation (AVR), which stabilizes minor power issues without draining the battery, a feature invaluable in regions with frequent brownouts. The tilting, full-color LCD delivers instant insights into battery status, load levels, and runtime estimates, making it user-friendly for placement in low-visibility spots like under desks in typical US home offices. Dual USB ports (Type-A and Type-C) add convenience by charging mobile devices even when the grid is down.

Build quality reflects durability with a robust design, replaceable RB1290X2 batteries, and a right-angle plug that navigates tight outlets. It offers 12 NEMA 5-15R outlets, split between six with full backup/surge protection and six surge-only, plus a 5-foot cord for flexible setup in garages, basements, or living rooms.

Potential drawbacks include shorter full-load runtime suited more for safe shutdowns than extended use, and the need to selectively plug critical items into battery-backed outlets. Software like PowerPanel Business enables detailed monitoring, though it requires a download.

Overall, this UPS delivers exceptional value for tech-savvy homeowners prioritizing protection for valuable setups, backed by a three-year warranty including batteries and a substantial equipment guarantee. Ideal for those in power-unstable areas seeking peace of mind without constant replacements.

• Supports high-power devices with 1000W capacity and sine wave output for seamless compatibility
• AVR technology minimizes battery use during minor fluctuations common in rural or urban US areas
• Includes PowerPanel software for remote monitoring and control from any computer
• $500,000 Connected Equipment Guarantee protects valuable home electronics
• User-replaceable batteries promote cost-effective maintenance over years

• Battery runtime drops to 2.5 minutes at full 1000W load, best for short outages or graceful shutdowns
• Only six of 12 outlets provide battery backup, requiring prioritization of critical devices
• Larger footprint than basic surge protectors may crowd tight spaces under standard desks

The CyberPower ST425 is a compact standby uninterruptible power supply (UPS) designed for home offices, entertainment setups, and networking gear in typical American households. With 425VA/260W capacity, it offers battery backup to bridge short power failures from storms or grid issues, giving users time to save work and shut down devices safely, alongside comprehensive surge protection for connected electronics.

• Standout features include four battery backup and surge-protected outlets plus four surge-only outlets, supporting up to eight devices like desktops, gaming consoles, routers, and chargers.
• Real-world performance shines in providing 6 minutes at half load, ideal for graceful shutdowns during brief outages common across the US.
• Its sleek, compact build with transformer-spaced outlets and a five-foot cord fits seamlessly into desks, media cabinets, or garage workshops without wasting space.

Build quality emphasizes durability with UL certification, GreenPower efficiency for lower energy use, and LED status lights for power-on and wiring faults. An easy alarm mute keeps it unobtrusive during family movie nights or late-night gaming. Drawbacks include no remote monitoring and shorter full-load runtime, making it best for lighter loads rather than heavy server setups.

Overall verdict: A smart, value-packed choice for homeowners seeking reliable protection for everyday electronics against unpredictable power events, backed by a three-year warranty and substantial equipment guarantee.

• Essential runtime at half load keeps devices powered long enough for graceful shutdowns during outages
• Eight outlets with surge protection safeguard multiple home entertainment and networking devices
• Three-year warranty including the battery ensures long-term reliability in variable American weather
• Transformer-spaced outlets accommodate bulky adapters common in US households without issues
• UL certified for safety and proven performance in protecting against common power events

• Runtime limited to 1.5 minutes at full load, best for short outages or low-power devices
• Lacks USB ports or monitoring software, requiring manual checks for status
• Standby topology suits basic needs but not high-demand or frequent outage scenarios

The CyberPower CP1500PFCLCD stands out as a premium mini-tower UPS tailored for American homeowners powering desktop computers, gaming setups, workstations, networking gear, and home theater systems. With 1500VA/1000W capacity and pure sine wave output, it excels at supporting active PFC power supplies found in modern high-end electronics, ensuring smooth operation without compatibility hiccups during outages.

Key strengths include Automatic Voltage Regulation (AVR), which stabilizes minor power issues without draining the battery, a feature invaluable in regions with frequent brownouts. The tilting, full-color LCD delivers instant insights into battery status, load levels, and runtime estimates, making it user-friendly for placement in low-visibility spots like under desks in typical US home offices. Dual USB ports (Type-A and Type-C) add convenience by charging mobile devices even when the grid is down.

Build quality reflects durability with a robust design, replaceable RB1290X2 batteries, and a right-angle plug that navigates tight outlets. It offers 12 NEMA 5-15R outlets, split between six with full backup/surge protection and six surge-only, plus a 5-foot cord for flexible setup in garages, basements, or living rooms.

Potential drawbacks include shorter full-load runtime suited more for safe shutdowns than extended use, and the need to selectively plug critical items into battery-backed outlets. Software like PowerPanel Business enables detailed monitoring, though it requires a download.

Overall, this UPS delivers exceptional value for tech-savvy homeowners prioritizing protection for valuable setups, backed by a three-year warranty including batteries and a substantial equipment guarantee. Ideal for those in power-unstable areas seeking peace of mind without constant replacements.

• Supports high-power devices with 1000W capacity and sine wave output for seamless compatibility
• AVR technology minimizes battery use during minor fluctuations common in rural or urban US areas
• Includes PowerPanel software for remote monitoring and control from any computer
• $500,000 Connected Equipment Guarantee protects valuable home electronics
• User-replaceable batteries promote cost-effective maintenance over years

• Battery runtime drops to 2.5 minutes at full 1000W load, best for short outages or graceful shutdowns
• Only six of 12 outlets provide battery backup, requiring prioritization of critical devices
• Larger footprint than basic surge protectors may crowd tight spaces under standard desks

The CyberPower EC850LCD is a compact standby UPS designed for American homeowners needing reliable battery backup and surge protection for desktop computers, home networking, personal electronics, and entertainment systems. With 850VA/510W capacity, it delivers simulated sine wave power during outages, providing enough runtime at half load for safe shutdowns and keeping essentials like WiFi routers online briefly.

Standout features include 12 NEMA 5-15R outlets: six for battery backup and surge protection, three surge-only with ECO mode that auto-shuts off when your PC sleeps or powers down to save energy, and three additional surge outlets. The multifunction LCD displays detailed info on battery life, load, and input voltage, while free PowerPanel Personal software enables USB monitoring and control. Its right-angle plug with five-foot cord and space for four large adapters make it practical for crowded US home setups.

Build quality emphasizes durability with a three-year warranty including the battery and a substantial connected equipment guarantee. In real-world home use, it excels at handling sags, spikes, and brief blackouts common in varying American power grids, promoting long-term device longevity without taking much space.

Drawbacks include shorter full-load runtime suited more for graceful shutdowns than extended operation, and the standby topology plus simulated sine wave best for general consumer gear rather than precision equipment. Overall verdict: Excellent value for protecting everyday home tech, ideal for space-conscious households prioritizing ease and efficiency.

• Reliable battery backup for home offices and entertainment setups during power interruptions
• Energy-efficient ECO mode lowers utility bills in everyday use
• User-friendly LCD and software make monitoring simple for non-tech-savvy homeowners
• Spacious outlets fit bulky adapters common in American households
• Strong warranty and equipment guarantee provide peace of mind

• Runtime drops to just over two minutes at full load, best for light to moderate use
• Simulated sine wave output may not ideal for highly sensitive medical or audio equipment
• Standby topology offers basic protection, not as advanced as line-interactive models

The Growatt HELIOS 3600 stands out as a versatile all-in-one home energy storage system tailored for American homeowners seeking dependable backup power amid frequent outages from storms, wildfires, or grid failures. With its 3600Wh capacity and ability to scale to 36kWh, it powers essentials like refrigerators, lights, routers, and even high-draw items such as air conditioners when expanded to 7200W at 240V split-phase output.

Key strengths include lightning-fast EPS switching under 15ms to keep critical loads running seamlessly, cold-start capability down to -22°F for harsh winters, and rapid recharging options: 1.5 hours on 240V AC or 2.8 hours via 2000W solar input. The EV-grade LiFePO4 battery endures 4000+ cycles while advanced BMS ensures safety and longevity. Its 16 versatile ports, including TT-30 for RVs and Anderson for solar, support easy DIY setups for homes, yards, or off-grid adventures.

Build quality reflects Growatt's 14+ years as a global leader, with a sturdy design that prioritizes quiet operation and app integration for smart energy savings. While its 99-pound weight limits handheld portability, wheels and handles aid relocation in larger spaces. Minor drawbacks include the need for extra batteries for maximum capacity and compatible panels for solar optimization.

Overall, the HELIOS 3600 excels for families prioritizing resilience, offering unmatched scalability and performance that justifies its place as a cornerstone of home preparedness.

• Scalable to 36kWh for up to 10 days of whole-home power during prolonged outages
• Seamless <15ms switchover and cold-weather operation handle extreme US weather events
• Fast 1.5-hour AC or 2.8-hour solar recharge keeps downtime minimal
• App-based controls optimize energy use to cut utility bills year-round
• Proven LFP battery delivers 10+ years of reliable, safe performance

• 99-pound weight makes it challenging to transport without assistance
• Expansion to full capacity requires purchasing additional batteries
• Solar charging at max speed needs separate compatible panels