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Generators
PowerShot Portable Generator SPG3645
3600-Watt Generator 49-State
NOT FOR SALE IN CALIFORNIA
Online Model No: SPG3645 (Part No: 70069)
In-Store Model No: SPG3645 (Part No: 70069)
SIMPSON’s portable generators are perfect for providing power at work sites, recreational facilities, residential locations, and more. Many are equipped with a foldable handle for ease of mobility and storage. Their heavy-duty roll cage frames provide durability and protection for the generator. Whether tailgating before a game, charging tools at a construction site, or providing backup power for your home, rely on SIMPSON® for your power needs. Equipped with a (49-State compliant) CRX® 225 with a low oil shutdown feature.
Features
- 3,600 running watts, 4,500 starting watt
- CRX® 225 engine is equipped with a low oil shutdown feature
- Recoil start
- Fuel tank capacity 3.96 gal. gasoline
- Breaker Amperage: 26A
- Roll cage frame protection with a foldable handle for easy mobility and storage
- 8 “never-flat wheels for ease of maneuverability across various terrain
- GFCI Protection
- Run time 25% load: 10.5 hrs
- Unit Dimensions: L 23 in. x W 18 in. x H 19 in.
- Unit Weight: 110 lbs.
- The actual product may vary slightly from product images
- This product is not for sale in California
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Operational Value dB 72-75 dBA 25% load @ 7 M
Generator per PGMA (Portable Generator Manufactures’ Association) standard ANSI/PGMA G300-2015,Safety and Performance of Portable Generators
+Approximate sound levels per ISO 3744, ISO 10884 (Extrapolated to sound pressure @ 7M)
See Operator’s Manual for complete warranty details
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Product Specs
- UPC (Online): 879399003004
- Power Type: Gasoline
- Fuel Tank Capacity (Gallons): 3.96
- Fuel Load Consumption: .56 gallons
- Number of Circuits/Outlets: 4
- Tires: 8 in. Never-flat
- Frame: Roll cage frame protection with foldable handle for easy mobility and storage
- Series: Generator
- Running Watts: 3600
- Starting Watts: 4500
- Engine Brand: CRX 225
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Warranty
- 3 Year limited consumer warranty
- 6 Month limited commercial warranty
- 90 Day limited accessory warranty
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Reviews
JercoburnGood generatorReviewed in US on December 10th, 2025
Worked great until a small rubber seal blew out expelling oil.
Response from SIMPSONWe're sorry to hear about the seal, Jercoburn. If you would reach out to our team at 877-362-4271 or email us at productsupport@simpsoncleaning.com, we hope to help get the issue resolved as quickly as possible. Thanks for sharing your experience & we hope to be hearing from you soon!
Simpson TeamDecember 10th, 2025
PJAMCEase of use5/5Quality5/5Effectiveness4/5Value5/5Nice unit.Reviewed in Wisconsin on April 29th, 2024Age: 65 or over |Purchased from: In-storeNice little unit. Compact and easy to store. Would be even better if it had the "idle down" feature.
Response from SIMPSONThanks for the feedback, PJAMC. We will be sure to pass the idle-down suggestion along for our team to consider. It's great to hear you've been so pleased with the performance & portability of your generator. We appreciate the review!
Simpson TeamMay 1st, 2024
Ken B. MNEase of use5/5Quality4/5Effectiveness4/5Value5/5Powershot 3645 GeneratorReviewed in MN on January 2nd, 2024Age: 55 to 64 |Purchased from: In-storeI was very happy my generator came out of the box in perfect shape, put oil, and gas in, and she fired right up, I haven't had the opportunity to give it a full test , but it held up fine while running with my large air compressor. So for right now happy, happy, happy.
Response from SIMPSONIt's great to hear your portable generator performed beautifully & we are confident it will continue to serve you well. Thanks for the positive feedback, Ken B. MN!
Simpson TeamJanuary 5th, 2024
AnonymousReviewed on October 15th, 2022Response from SIMPSONHi, anonymous. We are glad to see you have been happy with the overall performance of your portable generator. Thanks so much for the rating.
MarketingOctober 17th, 2022
ChopEase of use5/5Quality5/5Effectiveness5/5Value5/5Problem freeReviewed in Union south Carolina on July 14th, 2022Age: 35 to 44 |Purchased from: OnlineI love my simpson generator I've been using it for the last 3 years and I've had no problems at all with anything. Smooth running and quiet alot quieter than other generators of the same size and caliber couldn't ask for anything better.
Response from SIMPSONThat's great to hear, Chop. We are glad the reliable, quiet performance of your generator has made for a superior experience for you! Thanks for sharing your experience & for taking the time to review.
MarketingJuly 15th, 2022
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