View All
Generators
PowerShot Portable Generator SPG3645
3600-Watt Generator 49-State
DISCONTINUED
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
-
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
-
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
-
Warranty
- 3 Year limited consumer warranty
- 6 Month limited commercial warranty
- 90 Day limited accessory warranty
-
Reviews
RiverCityCatEase of use4/5Quality4/5Value4/57500 watt generator set-upReviewed in Wisconsin on February 8th, 2023Age: 55 to 64 |Purchased from: In-store |Originally reviewed on: PowerShot Portable Generator SPG7593E
I purchased a 7500 watt generator with electric start. After also purchasing the correct battery; (which could be more clearly defined on the exterior of the box) I brought it home and it sat in the garage for several weeks. When I finally got around to opening the box and setting up the machine I found all necessary parts in the box and the instructions fairly clear. I will say that you could just say add the FULL bottle of oil so I did not have to stop and check the level over and over. Once the oil & gas were added and the battery installed it fired right up. I haven't put it to the true test yet but so far so good.
Response from SIMPSONThat's great to hear, RiverCityCat. We are glad your 7500 watt generator fired right up & we are confident it will serve you well. Thanks for taking the time to review!
MarketingFebruary 13th, 2023
Ken B. MNEase of use5/5Quality4/5Effectiveness4/5Value5/5Powershot 3645 GeneratorReviewed in MN on January 2nd, 2024Age: 55 to 64 |Purchased from: In-store |I 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
ChopEase of use5/5Quality5/5Effectiveness5/5Value5/5Problem freeReviewed in Union south Carolina on July 14th, 2022Age: 35 to 44 |Purchased from: Online |I 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
LarsNice geneatorReviewed on August 22nd, 2025Originally reviewed on: PowerShot Portable Generator SPG7593EI picked this up on 7/23/2025 and will be using for home back up power. it started up and I ran a few electrical things and the machine did a great job.
Response from SIMPSONIt's great to hear you enjoyed a flawless performance, & your portable generator proved to be just what you needed to back up your home power. Thanks for sharing your experience, Lars!
Simpson TeamAugust 25th, 2025
HinsyEasily starts, runs smoothly and it's relatively quiet.Reviewed in US on May 6th, 2026I purchased this to use with my camper. I place it in the bed of my pickup truck and it easily runs my camper's air conditioning and other AC things with no issues. My only complaint is, with the wheels and brace installed I can't put my tonneau cover down. It's like 2" too tall. No problem if it's not raining.
- Q&A
