Dory Sentry PRO Max 8,300Wh Portable Battery Generator with 120V/240V Output and UPS Backup
High-capacity portable battery generator designed for demanding power needs
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Keep a refrigerator running for up to an estimated 9 days or a CPAP machine for up to 25 days during an outage
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Run 240V workshop and household equipment through a dedicated 240V outlet panel
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Back up the critical devices of a 2,000 sq ft home for an estimated 4 to 7 days through your electrical panel
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Protect computers and sensitive electronics with UPS backup that takes over the moment the grid fails
The Most Capable Sentry Yet
The Dory Sentry PRO Max is built for homes, workshops and properties that need more than a typical portable power station can give. It stores 8,300 watt-hours of energy and delivers 6,000 watts of continuous pure sine wave power, with 9,000 watts of peak and surge capacity for appliances with high startup demands.
True 120V and 240V Power
Unlike most portable battery generators, the PRO Max offers both 120V and 240V input and output. A dedicated 240V outlet panel, including a twist-lock outlet, sits alongside a 120V panel with household and RV outlets. That flexibility lets one unit support everyday household loads and the heavier 240V equipment found in garages, workshops and off-grid builds.
Instant, Uninterruptible Protection
A 2,200/4,400VA uninterruptible power supply takes over the moment utility power fails. Computers stay on, medical devices keep running and sensitive electronics avoid the shock of a sudden shutdown.
Days of Backup, by Dory's Estimates
Dory estimates a single PRO Max can run a refrigerator for up to 9 days, a home furnace for up to 8 days, a desktop computer for up to 10 days, a CPAP machine for up to 25 days, and phones and lights for up to 30 days. Connected to an electrical panel, Dory states it can support the critical devices of a 2,000 sq ft home for approximately four to seven days. Actual runtime will vary with the equipment and how it is used.
Fast, Flexible Charging
Recharge from a 120V outlet in about 5 hours, or cut that to about 2.5 hours on 240V. For clean, off-grid charging, the PRO Max accepts up to 2,400W of solar input and can reach a full charge in about 4 hours under suitable conditions.
Built for Long-Term Service
A steel metal structure and enclosure gives the PRO Max a substantial, durable build, while stainless steel foldable handles and casters help you position the 165-pound unit. Dory states the Sentry delivers more than 10 years of service and operates quietly and safely indoors and outdoors, with no fuel, emissions or engine noise.
Expand as Your Needs Grow
Connect multiple Sentry units together for greater capacity, or connect units individually through an electrical panel to choose exactly which circuits receive backup power.
Ideal Uses
- Extended whole-home backup of critical circuits during long outages
- Garages and workshops running 240V tools and equipment
- RV and camper power through the RV outlets
- Off-grid cabins and solar-powered energy systems
- Uninterrupted power for home offices and medical devices
8,300Wh Capacity and 6,000W Output
Pure sine wave power with 9,000W of peak and surge capacity for demanding appliances and equipment.
120V and 240V Input and Output
Separate 120V and 240V outlet panels, plus dual AC inputs with a voltage selector, for a wider range of electrical loads.
2,200/4,400VA Uninterruptible Power Supply
Instant battery switchover keeps critical devices running through outages.
Fast Wall and Solar Charging
About 5 hours on 120V, about 2.5 hours on 240V, or about 4 hours with 2,400W of solar panels.
Outlets for Every Job
20A household outlets, RV outlets, a 240V twist-lock outlet and universal outlets, plus two USB-C PD ports, four USB-A ports and two 12V DC outputs.
Steel Construction
A steel enclosure with stainless steel foldable handles and casters, rated by Dory for more than 10 years of service.
Expandable and Panel-Ready
Connect multiple Sentries together, or connect to your electrical panel for critical-circuit home backup.
Brand: Dory Power
Model: Dory Sentry PRO Max
Battery capacity: 8,300Wh
Continuous AC output: 6,000W
Surge/peak output: 9,000W
Uninterruptible power supply: 2,200/4,400VA
AC output voltage: 120V/240V
AC output waveform: Pure sine wave
AC input: 120V/240V (separate 120V and 240V inputs with voltage selector)
120V wall charge time: Approx. 5 hours
240V wall charge time: Approx. 2.5 hours
Maximum solar input: 2,400W
Solar charge time: Approx. 4 hours at 2,400W (manufacturer estimate)
120V AC outlets: 2 x 20A household outlets, 1 x 25A RV outlet, 1 x 15A universal outlet
240V AC outlets: 1 x 20A outlet, 1 x 25A RV outlet, 1 x 15A universal outlet, 1 x 25A twist-lock outlet
USB-C: 2 PD ports (100W and 30W)
USB-A: 4 ports
DC output: 2 x 12V 10A
Display: Front LCD screen
Expansion: Connect multiple units together or via an electrical panel
Construction: Steel metal structure and enclosure
Handles: Stainless steel, foldable
Mobility: Casters
Dimensions: 28 in x 13 in x 23 in
Weight: 165 lb
Color options: White, Titanium
Service life: 10+ years (manufacturer-stated)
Free shipping on orders over $100 in the lower 48 Within the Continental U.S. (Excludes AK/HI). Total delivery 6 to 11 business days (handling 6 to 11 business days, transit 6 to 11 business days).
30-day return window; report any damage within 7 days. For returns, the customer pays return shipping on change-of-mind returns; we cover it for items that arrive defective, damaged, or incorrect. Restocking fee: 25% on approved non-defective returns (waived for defective, damaged, or incorrect items and exchanges). Refunds are issued within 14 days after we receive and inspect the return.
Shipping & Returns At A Glance
30-Day
Returns
Free
Shipping On Most Continental U.S. Orders
