Pecron F3000LFP vs OUPES Mega 3

• ValuePecron F3000LFP: 7 (higher)OUPES Mega 3: 5

  Pecron F3000LFP

  • $899.00 for 3 kWh and a 3,600 W inverter

  OUPES Mega 3

  • $1,199.00 for 3,072 Wh, with B2 batteries at $600 each
  • Availability: a pre-order shipping October 25, 2026
• RechargingPecron F3000LFP: 7OUPES Mega 3: 8 (higher)

  Pecron F3000LFP

  • Full wall charge in 2 hours at 1,800 W; solar tops out at 1,600 W
  • Combined: 1.5 hours at 2,800 W with AC and solar together
  • Solar: one XT60 input with one MPPT at 25 to 120 V

  OUPES Mega 3

  • Full wall charge in 1.8 hours at 1,800 W, just over two measured; 2,100 W solar
  • Conflict: OUPES publishes its charge time four ways: 0.8, 1, 1.7 and 1.8 hours
  • Combined: 3,900 W with AC and solar; each B2 takes its own 2,100 W of solar

Same score

• CapacityPecron F3000LFP: 9OUPES Mega 3: 9

  Pecron F3000LFP

  • 3,072 Wh, in the 3,000 to 3,499 Wh band; 83 percent drawn at 3,600 W
  • Measured: Lithium Solar drew 2,863 Wh at an 860 W load, 93 percent of rated
  • Idle: 37 W draw in TheSolarLab's test

  OUPES Mega 3

  • 3,072 Wh, in the 3,000 to 3,499 Wh band; 86 percent drawn at about 2,968 W
  • Measured: AVERAGE JOE drew 2,708 Wh at about 617 W, 88 percent of rated
• Power OutputPecron F3000LFP: 10OUPES Mega 3: 10

  Pecron F3000LFP

  • 3,600 W continuous and 4,500 W surge at 120 V only
  • Surge: held 4,500 W for about 10 seconds, per TheSolarLab; rated for 5 seconds
  • Missing: Pecron's 240 V Connect Box is made for the E3600LFP and E3800LFP, not this unit

  OUPES Mega 3

  • 3,600 W continuous at 120 V, though its 7,000 W surge did not hold
  • Measured: held about 3,570 W with a B2 attached, per AVERAGE JOE
  • Limit: 120 V only, and two units cannot be paired
• Battery LifePecron F3000LFP: 6OUPES Mega 3: 6

  Pecron F3000LFP

  • LiFePO4 cells rated for 3,500 cycles to 80 percent capacity

  OUPES Mega 3

  • LiFePO4 cells rated for 3,500 cycles to 80 percent capacity
• Backup ReadinessPecron F3000LFP: 6OUPES Mega 3: 6

  Pecron F3000LFP

  • 8 to 20 ms switchover and up to 10,752 Wh, but no transfer switch
  • Limit: automatic switchover covers loads under 1,800 W only
  • Cable: expansion needs a separately sold XT120 cascade cable

  OUPES Mega 3

  • Under 20 ms switchover to 2,200 W and up to 15.36 kWh; no transfer switch
  • Missing: OUPES points to a third-party Reliance Pro/Tran 2 kit instead of its own switch
  • Flicker: a slight light flicker on UPS switchover, per AVERAGE JOE
• VerificationPecron F3000LFP: 2OUPES Mega 3: 2

  Pecron F3000LFP

  • No published safety certificate; no certifier directory lists the model

  OUPES Mega 3

  • No published safety certificate; no certifier directory lists the model
• Warranty & SupportPecron F3000LFP: 8OUPES Mega 3: 8

  Pecron F3000LFP

  • 5 years when registered within 30 days

  OUPES Mega 3

  • 5 years, plus a sixth free on registration

• RedditPecron F3000LFP: 6 (higher)OUPES Mega 3: 5

  Pecron F3000LFP

  Liked

  • Ran all 120 V house circuits since November, per one owner
  • Ran a garage with one expansion battery for almost a year, per one owner

  Complaints

  • Fell from 70 to 1 percent in storage and charged at 60 W, per one owner
  • Tesla charger refused it for outlet grounding, per one owner
  • App would not connect until a 2.4 GHz network was set up, per one owner

  Read the full summary

  • Where: owner posts on the F3000LFP in r/SolarDIY and r/PortableBatteryPacks, February to June 2026
  • House: one owner has run all of his 120 V house circuits from it since November and cleared an early app connection fault by setting up a 2.4 GHz network (r/SolarDIY)
  • Garage: another has run a garage from it with one expansion battery for almost a year without issues (r/SolarDIY)
  • Storage: a unit stored over winter fell from 70 to 1 percent in under 12 hours with nothing plugged in, then charged at 60 W (r/PortableBatteryPacks, March 2026)
  • Grounding: a Tesla mobile connector refused to charge from it, citing inadequate outlet grounding (r/SolarDIY, February 2026)

  OUPES Mega 3

  Liked

  • Support handled issues well, per one owner

  Complaints

  • B2 battery stopped charging from the station, per one owner
  • Would not recharge after a full discharge, per one owner

  Read the full summary

  • Where: r/OUPES_info, a user-run subreddit, from July and August 2026
  • B2 fault: one owner's B2 battery, which worked over the winter, stopped charging from the Mega 3
  • E022: another reported a Mega 3 that would not recharge after a full discharge, the fault other Mega owners describe in the same thread
  • Support: a third, who owns a Mega 3 and a Guardian 6000, called OUPES support fantastic on the few issues raised
• GooglePecron F3000LFP: 8 (higher)OUPES Mega 3: 7

  Pecron F3000LFP

  Liked

  • Held 4,500 W for about 10 seconds, per one reviewer
  • Full wall charge in just over two hours, per one reviewer
  • Reached 1,600 W of solar input, per one reviewer

  Complaints

  • 37 W idle draw, per one reviewer
  • AC outlets too close together, per one reviewer
  • No built-in light, per one reviewer

  Read the full summary

  • TheSolarLab: earns affiliate commission on its links (updated October 2026)
  • Measured by TheSolarLab: a full 3,600 W load without a trip, 4,500 W held for about 10 seconds, 83 percent of rated capacity at 3,600 W, a wall recharge in just over two hours and 1,600 W of solar
  • Faulted by TheSolarLab: a 37 W idle draw, AC outlets set too close for bulky plugs and the lack of a light

  OUPES Mega 3

  Liked

  • 86 percent usable at about 2,968 W, per one reviewer
  • 20 A on every AC outlet, per one reviewer
  • Ran with two B2 batteries for eight months, per one owner

  Complaints

  • Barely handled loads above 3,600 W, per one reviewer
  • Advertised peak shaving missing from the app, per one reviewer
  • Hard plastic wheels, per one reviewer

  Read the full summary

  • TheSolarLab: earns affiliate commission and offers a discount code
  • Measured by TheSolarLab: drew 86 percent of rated capacity at about 2,968 W; recharged on AC from 2 to 100 percent in just over two hours
  • Faulted by TheSolarLab: barely handled loads above 3,600 W despite the 7,000 W surge rating, a peak-shaving feature it could not find in the app, and the hard plastic wheels
  • Praised by TheSolarLab: 20 A on every AC outlet, the included cables and OUPES phone support
  • Forums: a DIY Solar Power Forum owner reported a Mega 3 with two B2 batteries working well for eight months; an iRV2 RV owner ran every 12 V load in a trailer from its Anderson output (May 2024)
• YouTubePecron F3000LFP: 7OUPES Mega 3: 8 (higher)

  Pecron F3000LFP

  Liked

  • 93 percent usable on AC at 860 W, per one channel
  • 1,753 W AC charging, per one channel
  • 180 W from the DC output, per one channel

  Complaints

  • Phone app, per one channel

  Read the full summary

  • Lithium Solar: uses affiliate links and a Pecron discount code; drew 2,863 Wh at an 860 W load, 93 percent of rated, saw 1,753 W of AC charging, opened the case and disliked the phone app (January 2026, about 34,000 views)
  • Jasonoid: the video is marked as paid promotion and carries a Pecron discount code; drew 180 W from the DC output and was surprised by its test results (August 2025, about 56,000 views)

  OUPES Mega 3

  Liked

  • 88 percent usable at about 617 W, per one channel
  • Started a miter saw and an air compressor, per one channel
  • 2,100 W of solar on each B2 battery, per one channel

  Complaints

  • Recovery charge needed after a full drain, per one channel
  • Stock AC cord ran warm on fast charge, per one channel
  • B2 battery did not balance with the station, per one channel

  Read the full summary

  • AVERAGE JOE: links to OUPES and passes on an OUPES discount code; drew 2,708 Wh at about 617 W, 88 percent of rated, and held about 3,570 W with a B2 battery attached (May 2024, about 10,000 views)
  • Loads by AVERAGE JOE: started a 10-inch miter saw and an air compressor; saw a slight light flicker on UPS switchover
  • Porter Creek: links an OUPES discount code; used one daily for a year, praised the solar input on each B2 battery and the features added to the app (March 2025, about 12,500 views)
  • Our Everyday Homestead: uses affiliate links; ran about 3,200 W of heaters without a shutdown (November 2023, about 10,000 views)
• AmazonPecron F3000LFP: 8OUPES Mega 3: 8

  Pecron F3000LFP

  Liked

  • Reliability, tagged positive in 43 of 51 mentions
  • Value for money, tagged positive in 29 of 31 mentions
  • Power, tagged positive in 11 of 13 mentions

  Complaints

  • Charging performance, tagged negative in 11 of 27 mentions
  • Weight, tagged negative in 9 of 12 mentions
  • Noise, tagged negative in 6 of 18 mentions

  Read the full summary

  • Listing: the station listing (B0F6YCRKTJ), sold by PECRON Direct
  • Rating: 4.5 from 154 ratings, 76 percent five-star, 14 percent four-star and 5 percent one-star
  • Scoring: one point lower because Walmart flags most reviews on Pecron's own listings as incentivized

  OUPES Mega 3

  Read the full summary

  • Listing: the station listing (B0CS6CNM8L), model S3, reads 4.3 from 35 ratings
  • Kit: a separate listing with two panels (B0CF26N2QK) reads 3.9 from 5 ratings, under the ten-review floor
• Owner reviewsPecron F3000LFP: —not scoredOUPES Mega 3: 8

  No usable source for the Pecron F3000LFP; the OUPES Mega 3 reading covers its product line.

  Pecron F3000LFP

  Nothing recorded.

  OUPES Mega 3

  Read the full summary

  • Coverage: no US retailer lists the Mega 3 with a review; Walmart's Mega 3 listings are gone, and Lowe's Mega 3 page carries no reviews
  • Walmart: this reads the Mega 1 and Mega 1 Lite file (item 11344470227), sold by OUPES's own store, which shares the Mega series app and B2 expansion battery with the Mega 1
  • Rating: 4.3 from 136 ratings, 4.3 from 132 with Walmart's four incentivized reviews set aside
  • Praised: the fast wall charge and overnight refrigerator runtime
  • Criticised: units that died after a full discharge and app dropouts