The VTOMAN FlashSpeed Pro 3600 scores 6.0 and ranks 40th of 61 in Portable Stations; the ALLPOWERS R3500 scores 5.3 and ranks 54th of 61 in Portable Stations. The FlashSpeed Pro 3600 leads on power output, the R3500 on warranty & support.
Across everything we scored, VTOMAN FlashSpeed Pro 3600 sits 0.73 ahead — led by power output.
Verdict
FlashSpeed Pro 3600 ahead · +0.73 (6.0 vs 5.3)
Pick the VTOMAN FlashSpeed Pro 3600 when
Power output matters10vs8
Battery life matters6vs4
Pick the ALLPOWERS R3500 when
Warranty & support matters8vs3
Capacity matters8vs7
A longer warranty matters5 Yearsvs2 Years
Scored 10 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Where the VTOMANFlashSpeed Pro 3600 and ALLPOWERSR3500 differ
Scores on a 0–10 scale. Each row is one criterion, biggest difference first.
VTOMANALLPOWERS
Warranty & Support
+5 ALLPOWERS
VTOMAN FlashSpeed Pro 3600
3.0/10
ALLPOWERS R3500
8.0/10
VTOMAN FlashSpeed Pro 3600: 2 Years · ALLPOWERS R3500: 5 Years.
Power Output
+2 VTOMAN
VTOMAN FlashSpeed Pro 3600
10.0/10
ALLPOWERS R3500
8.0/10
Capacity
+1 ALLPOWERS
VTOMAN FlashSpeed Pro 3600
7.0/10
ALLPOWERS R3500
8.0/10
Battery Life
+2 VTOMAN
VTOMAN FlashSpeed Pro 3600
6.0/10
ALLPOWERS R3500
4.0/10
Recharging
tied
VTOMAN FlashSpeed Pro 3600
6.0/10
ALLPOWERS R3500
6.0/10
Backup Readiness
tied
VTOMAN FlashSpeed Pro 3600
6.0/10
ALLPOWERS R3500
6.0/10
Verification
tied
VTOMAN FlashSpeed Pro 3600
2.0/10
ALLPOWERS R3500
2.0/10
Value
one side unscored
VTOMAN FlashSpeed Pro 3600
—
ALLPOWERS R3500
—
What VTOMANFlashSpeed Pro 3600 and ALLPOWERSR3500 owners report
Independent sources, scored for each model. FlashSpeed Pro 3600 on 5 of five, R3500 on 4.
VTOMANALLPOWERS
Reddit
tied
VTOMAN FlashSpeed Pro 3600
4.0/10
ALLPOWERS R3500
4.0/10
The VTOMAN FlashSpeed Pro 3600 reading covers the whole brand; the ALLPOWERS R3500 reading covers the whole brand.
What they say
VTOMANFlashSpeed Pro 3600
No owner thread names the FlashSpeed Pro 3600 outside r/vtoman_global, a VTOMAN subreddit that counts in no pool, so this reads the brand.
In r/solar an owner's Jump 1800 would not charge from its wall charger, and VTOMAN offered to swap it for a Jump 1500 rather than another 1800 (August 2024).
ALLPOWERSR3500
No owner thread in an independent subreddit names the R3500, so this reads the brand.
In r/SolarDIY an R2500 owner said ALLPOWERS told him the B3000 expansion battery connects only to the R3500 in the US (2024); in r/GoRVing an owner's R1500 clicked above 30 W of AC load and its app would not connect over Bluetooth or Wi-Fi, and a commenter said no one at ALLPOWERS answered email or phone (2024).
Google
+2 VTOMAN
VTOMAN FlashSpeed Pro 3600
7.0/10
ALLPOWERS R3500
5.0/10
The ALLPOWERS R3500 reading covers its product line.
What they say
VTOMANFlashSpeed Pro 3600
Electrek, which uses affiliate links, charged a LiveWire Del Mar motorcycle at about 1.5 kW and an electric loader from it, ran a 1,500 W kettle, found the wall charge close to VTOMAN's two-hour claim, and faulted a display that is hard to read in sunlight and the weight (December 2025).
TechRadar, testing the UK 230 V model, rated its user experience 3 of 5 and faulted the 38 kg weight, the lack of Bluetooth, Wi-Fi or app control, and solar inputs that need an adapter not in the box (August 2026).
ALLPOWERSR3500
No credible written test of the US R3500 was found, so this reads the R4000 sold beside it.
Vantour, a French van-life site that passes on an ALLPOWERS discount code and links to ALLPOWERS' store, put a full wall charge of the R4000 at about 4 hours and 400 W solar at about 8 hours, found the fans quiet under heavy load, and noted app connection problems some owners report (July 2024).
YouTube
+1 VTOMAN
VTOMAN FlashSpeed Pro 3600
6.0/10
ALLPOWERS R3500
5.0/10
Both readings are about these exact models.
What they say
VTOMANFlashSpeed Pro 3600
TechMagnet, which carries a VTOMAN discount code and links to VTOMAN's store, loaded every USB port to about 100 W, ran studio lights at about 400 W and a microwave for about 1,900 W in total, and found the fans quiet at low load (June 2026, about 35,500 views).
Travel Trolls TV, which carries a VTOMAN UK store code, ran an air fryer and a microwave together at 2,826 W on the UK 230 V model (December 2025, about 4,950 views).
OFF GRID with Peniglen Homestead, in a review it says VTOMAN paid for, cooked on the UK model at about 785 W (November 2025, about 25,350 views).
ALLPOWERSR3500
Eric Hernandez, which passes on an ALLPOWERS promo code in its R4000 review, ranked the R3500 among the better stations it had tested (April 2024, about 13,000 views).
Tolbers, which earns through Amazon affiliate links, paired it with ALLPOWERS' 400 W SP037 panel and repeated ALLPOWERS' claim of expansion to 101 kWh with 15 B3000 batteries, a figure no ALLPOWERS US page carries (March 2024, about 3,900 views).
Amazon
+3 VTOMAN
VTOMAN FlashSpeed Pro 3600
7.0/10
ALLPOWERS R3500
4.0/10
The VTOMAN FlashSpeed Pro 3600 reading covers its product line; the ALLPOWERS R3500 reading covers its product line.
What they say
VTOMANFlashSpeed Pro 3600
The station listing (B0GVDBNWJB), sold by VTOMAN-US, shares one review file with the FlashSpeed 300 and FlashSpeed 2400 listings and their solar bundles: 4.4 from 539 ratings, 76 percent five-star and 7 percent one-star.
Amazon's review tags are positive on performance (62 of 74) and charging speed (51 of 72), mixed on reliability (44 of 73) and value (22 of 36), and negative on battery life (21 of 35).
ALLPOWERSR3500
No rated R3500 listing appears in ALLPOWERS' own Amazon US store, so this reads the R4000's: the station listing (B0BRCLJ79Q) holds 3.2 from 15 ratings; its star split sits behind sign-in.
Owner reviews
one side unscored
VTOMAN FlashSpeed Pro 3600
7.0/10
ALLPOWERS R3500
—
The VTOMAN FlashSpeed Pro 3600 reading covers the whole brand; no usable source for the ALLPOWERS R3500.
What they say
VTOMANFlashSpeed Pro 3600
The FlashSpeed Pro 3600's only US retailer listing, VTOMAN's own marketplace store on Lowe's (item 8984203), carries no reviews, and no Walmart listing for it was found; the 4.9 from 23 on vtoman.com is the brand's own widget.
The only VTOMAN station file over the floor at a US retailer is Walmart's Jump 1800 and Jump 1500X file (items 1965068414 and 2259753313), sold by VTOMAN's own Walmart store: 4.1 from 62 ratings, 4.4 from 46 with Walmart's 16 incentivized reviews set aside, for Jump-series stations rather than this one.
ALLPOWERSR3500
No usable source.
VTOMANFlashSpeed Pro 3600 vs ALLPOWERSR3500: pros and cons
What each one does well, and where it falls short.
VTOMANFlashSpeed Pro 3600
Strengths
3,600 W continuous from one 30 A and three 20 A outlets
Full wall charge in about 2 hours at 1,800 Wwith no external brick
UPS switchover under 20 ms
Wheels and a telescoping handle for an 83.8 lb unit
Two 100 W USB-C ports
AC cable stows under the lid
Drawbacks
No appBluetooth or Wi-Fi monitoring
120 V onlywith no VTOMAN transfer switch
No FlashSpeed Pro 3600 extra battery is listed on VTOMAN's US store
VTOMAN states the expanded capacity three ways: 5,6325,912 and 6,192 Wh
VTOMAN's US sale page gives a 7,200 W peakthe spec table 6,000 W
A 2025 VTOMAN blog post calls it a 3,600 Wh batterythe spec table and manual say 3,096 Wh
The manual's warranty section excludes battery cells
MC4 solar panels need an Anderson adapternot included
ALLPOWERSR3500
Strengths
3,200 W continuous with a 6,000 W surge
Up to 2,000 W of solar input
UPS switchover within 15 ms
Takes one B3000 expansion batteryfor 6,336 Wh in total
Wi-Fi and Bluetooth app control
Charges from an EV charging station
Five years of warranty with free registration on ALLPOWERS' site
Drawbacks
ALLPOWERS publishes no wall-only charge time and no cycle end point for the US R3500
UPS mode carries no more than 1,500 W of load
The B3000 expansion battery is sold out on ALLPOWERS' US store, and ALLPOWERS sells no transfer switch
The US feature list claims 4,000 W of combined inputthe US spec table gives 1,500 W AC and 2,000 W solar
Solar window stated as 12 to 150 V on the US page and 12 to 60 V, 1,300 W on ALLPOWERS' UK page
Expansion stated as one B3000 on the US page and one to three on ALLPOWERS' UK page
The US page gives no weight and the only US manual is the June 2023 edition
ALLPOWERS' Returns page states an 18-month warrantythe warranty policy gives 24 months, or 5 years when registered after an iallpowers.com order
93 lb with no wheels
VTOMANFlashSpeed Pro 3600 vs ALLPOWERSR3500: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
VTOMANFlashSpeed Pro 3600 vs ALLPOWERSR3500: common questions
Is the VTOMAN FlashSpeed Pro 3600 better than the ALLPOWERS R3500?
On our scores, the VTOMAN FlashSpeed Pro 3600 is ahead, 6.0 against 5.3. The VTOMAN FlashSpeed Pro 3600 leads on power output (10 against 8) and battery life (6 against 4). The ALLPOWERS R3500 leads on warranty & support (8 against 3) and capacity (8 against 7).
Which is cheaper, the VTOMAN FlashSpeed Pro 3600 or the ALLPOWERS R3500?
The VTOMAN FlashSpeed Pro 3600, at $1,300 against $1,424: $124 less.
Which has the longer warranty, the VTOMAN FlashSpeed Pro 3600 or the ALLPOWERS R3500?
The ALLPOWERS R3500: 5 Years, against 2 Years.
What do owners say about the VTOMAN FlashSpeed Pro 3600 and the ALLPOWERS R3500?
Across 4 independent sources scored for both, the VTOMAN FlashSpeed Pro 3600 is ahead on Google, YouTube and Amazon; Reddit is level.
Scores calculated 10 October 2026 · Products excluded where fewer than two independent sources cover them · Researched and edited by Michael Ambrose · Unbroken Ads LLC · How we score