WATTGRIDLAB
Category Silo • 12 Rated Profiles

Shop Tools & Mobile Work Rigs: Running Watts, LRA Surge & Battery Sizing

Mobile auto detailers, off-grid carpenters, and field mechanics push 120V circuits to the absolute 15A/20A ceiling. Universal brush motors and air compressors starting under tank pressure demand massive instantaneous surge headroom and 10-AWG voltage-drop protection.

Engineering Focus: Under-load compressor restarts, heated extractor + vacuum staggering, and 10-gauge cord voltage drop mitigation.

Sortable Shop & Mobile Rigs Wattage & Surge Comparison Table

Click any column header to sort • Click “Size” for interactive runtime simulator
Voltage / PlugPure SineAction
120V Inverter MIG / Flux-Core Welder (140A)
17.5A @ 120V
2,100W2,850W120V (5-20P)25% • 525 Wh/hr5,491 WhRequiredSize
10-Inch Portable Jobsite Table Saw
15A @ 120V
1,800W3,800W120V (5-15P)25% • 450 Wh/hr4,706 WhOptionalSize
Heated Carpet / Auto Upholstery Extractor
14.58A @ 120V
1,750W2,600W120V (5-20P)55% • 963 Wh/hr10,071 WhRequiredSize
6-Gallon Jobsite Air Compressor
13.75A @ 120V
1,650W3,500W120V (5-20P)40% • 660 Wh/hr6,902 WhRequiredSize
12-Inch Sliding Compound Miter Saw
13.75A @ 120V
1,650W3,400W120V (5-15P)20% • 330 Wh/hr3,451 WhOptionalSize
1800 PSI Electric Pressure Washer
12.92A @ 120V
1,550W3,100W120V (5-15P)40% • 620 Wh/hr6,484 WhRequiredSize
15A Wet/Dry Shop Vacuum (6.5 Peak HP)
12A @ 120V
1,440W2,900W120V (5-15P)45% • 648 Wh/hr6,777 WhOptionalSize
2.5-Gallon Pancake Air Compressor
10A @ 120V
1,200W2,600W120V (5-15P)35% • 420 Wh/hr4,393 WhRequiredSize
Corded Upright Household Vacuum Cleaner (1100W)
9.17A @ 120V
1,100W1,600W120V (5-15P)20% • 220 Wh/hr2,301 WhOptionalSize
SDS-Plus Corded Rotary Hammer Drill
8.17A @ 120V
980W1,850W120V (5-15P)30% • 294 Wh/hr3,075 WhOptionalSize
Dual-Action Car Polisher (15mm / 21mm)
7.5A @ 120V
900W1,350W120V (5-15P)55% • 495 Wh/hr5,177 WhRequiredSize
20V Dual-Port Power Tool Battery Charger
2.17A @ 120V
260W300W120V (5-15P)65% • 169 Wh/hr1,768 WhRequiredSize

Recommended Backup Power Hardware for Shop Tools & Mobile Work Rigs

Pre-calibrated for a baseline 15A Wet/Dry Shop Vacuum (6.5 Peak HP) (8-hour outage window) — click any appliance above to customize runtime and stack additional loads.

How Plug-and-Play Battery Backup Works (No Electrician Needed for 120V)100% Indoor Safe • Zero Carbon Monoxide • Instant Setup
Step 1 • Pre-Charge or Solar

Charge Battery from Wall or Solar

Plug into any normal wall outlet to fast-charge to 100% in ~60 minutes before a storm, or top off outdoors with folding solar panels.

Step 2 • Direct 3-Prong Plug-In

Plug Fridge, Wi-Fi, or Sump Pump Into Front 120V Outlet

Plug your appliance's normal 3-prong cord straight into the power station's front 120V AC outlets—just like a wall socket.

Step 3 • Silent Indoor Autonomy

Instant Silent Backup Power Indoors with Zero Fumes

Safe for kitchens, nurseries, bedrooms, and apartments with automatic <20ms UPS blackout switchover and zero gasoline or exhaust.

Hardware Matchmaker: Filtered strictly to units clearing 1,728W continuous & 2,900W surge.As an Amazon Associate I earn from qualifying purchases. (FTC Disclosure)
Track A • Silent Indoor Safe

Best Matched LiFePO4 Power Station

Zero fumes, <20ms UPS auto-switchover, safe for bedrooms, apartments & basements.

Need: 6,777 Wh
PRIMARY RIGHT-SIZED MATCHLiFePO4 (6,500 Cycles to 50%)

EcoFlow DELTA Pro (3.6kWh Wheeled Station)

3,600Wh / 7,200W Surge Flagship 120V Home & 30A RV Transfer

Est. Tier
~$2,199

Runs your exact load for ~4.3 hrs — Expandable with solar/extra battery

Covers ~4.3h per charge; add solar panels or ~1 expansion pack(s) for full 8h autonomy.

Capacity
3,600 Wh
Output / Surge
3600W/7200W
Noise
45 dB
Load Util
40%
NEMA Outlets: 120V: NEMA TT-30R (30A) + 4× NEMA 5-20R + Anderson 30A
  • 3,600W continuous / 7,200W surge handles entire 120V 30A transfer panels
  • 3,600Wh LFP base capacity expands to 10.8kWh with Smart Extra Batteries
COMPACT BUDGET OPTIONLiFePO4 (3,000+ Cycles)

Bluetti AC200L

Expandable 2kWh–8kWh Solar Homestead & 30A RV Shore Backup

Est. Tier
~$1,299

Runs your exact load for ~2.4 hrs — Expandable with solar/extra battery

Covers ~2.4h per charge; add solar panels or ~3 expansion pack(s) for full 8h autonomy.

Capacity
2,048 Wh
Output / Surge
2400W/3600W
Noise
45 dB
Load Util
60%
NEMA Outlets: 120V: NEMA TT-30R (30A RV) + 4× NEMA 5-20R
  • 1,200W blazing solar MPPT input recharges in ~2 hours of peak sun
  • Built-in NEMA TT-30R + expandable up to 8,192Wh with B300K packs
Track B • Multi-Day Outdoor Fuel

Best Matched Dual-Fuel Inverter Generator

Unlimited runtime via stored propane or gasoline (operate 20+ ft outdoors only).

Window: 8h
BEST DUAL-FUEL MATCHGAS + PROPANECLEAN SINE WAVE

Champion 4500W Electric-Start Dual-Fuel Inverter

30A RV Rooftop AC, Mobile Detailing Vans & Jobsite Compressors

Est. Tier
~$949

Est. 8h Fuel Burn: ~1.2 gal gas OR ~6.2 lbs propane (~0.3 × 20-lb BBQ tanks)

Modeled at ~19% average throttle (~0.15 gal/hr) based on your 648 Wh/hr duty-adjusted load.

Rated / Peak
3500W/4500W
Tank @ 25%
14 hrs
Acoustic
61 dB
Weight
96 lbs
NEMA Outlets: 120V: NEMA TT-30R (30A RV) + 2× NEMA 5-20R
  • 4,500W starting surge handles factory 13,500 BTU RV ACs & 6-gal compressors
  • Built-in NEMA TT-30R 30A RV outlet + push-button electric start
STEP-UP HEADROOMGAS + PROPANECLEAN SINE WAVE

Westinghouse iGen4500DFc Remote-Start Dual-Fuel Inverter

Ultra-Quiet 52 dB RV Boondocking, Detailing & Heavy 120V Home Loads

Est. Tier
~$1,049

Est. 8h Fuel Burn: ~1.3 gal gas OR ~6.8 lbs propane (~0.4 × 20-lb BBQ tanks)

Modeled at ~18% average throttle (~0.16 gal/hr) based on your 648 Wh/hr duty-adjusted load.

Rated / Peak
3700W/4500W
Tank @ 25%
18 hrs
Acoustic
52 dB
Weight
104.7 lbs
NEMA Outlets: 120V: NEMA TT-30R (30A RV) + 2× NEMA 5-20R
  • Wireless key-fob remote start + electric choke for effortless winter cranking
  • Oversized 3.4-gallon tank delivers up to 18 hours between refuels

Essential Hookup & Protection Kit (Auto-Matched to Your Load)

Prevents voltage drop, flame-sensor faults & LRA trips
soft start~$68

AC Compressor & Well Motor Soft-Start Capacitor Kit

Cuts your 15A Wet/Dry Shop Vacuum (6.5 Peak HP) startup spike (2,900W) by up to 65% so smaller inverters won't trip.

cord~$54

10-Gauge SJTW Heavy-Duty Lighted Generator Cord (25 ft)

Required for your 1,440W continuous / 2,900W surge stack to stop voltage sag on startup.

shelter~$64

Heavy-Duty Storm-Proof Outdoor Generator Running Cover

Keeps outdoor dual-fuel generators running safely 20+ ft away from your house in driving storm rain or blizzard snow.

Multi-Appliance Outage Rigs Featuring Shop & Mobile Rigs