Makers’ specs, our math · How we calculate · “Paid link” = we earn a commissionPaid links are marked

Head to head

ALLPOWERS R4000 vs BLUETTI Apex 300

The ALLPOWERS R4000 runs an average fridge about 1.6× as long (41.7 h vs 26 h). Both cost $1,499. The Apex 300’s own 20 W draw is included. The gap shrinks at higher loads, where own draw matters less (table below).

Pick the R4000 for longer fridge runtimes; pick the Apex 300 for moving it (15.4 lb lighter), faster solar refills and cold garages (works down to −4°F).

Updated Oct 22, 2026 · prices checked Oct 21, 2026 · How we calculate

SpecR4000Apex 300Ahead
Capacity3,456 Wh2,765 WhR4000
Output3,600 W3,840 WApex 300
Surge, per maker6,000 Wnot listedR4000
Weight99.2 lb83.8 lbApex 300
Solar input2,000 W2,400 WApex 300
Solar refill, our math2.3 h1.5 hApex 300 (faster)
Works down to14°F−4°FApex 300
Charges from32°F32°FTie
Maker price$1,499$1,499Tie
Price per Wh$0.43$0.54R4000

Maker prices, Oct 21, 2026, unless dated. Checkout price applies. Specs from each maker; sources on the station pages.

RuntimeR4000Apex 300Ahead
CPAP with humidifier, 22 W16.7 nights7 nightsR4000
Average US fridge, 70.4 W41.7 h26 hR4000
100 W load29.4 h19.6 hR4000
500 W load5.9 h4.5 hR4000
1,000 W load2.9 h2.3 hR4000

Wh × 0.85 ÷ (watts + the station’s own draw, where the maker lists it). Eight-hour CPAP nights.

R4000: Sale price in ALLPOWERS’ US store (iallpowers.com) on Oct 21, 2026 (list price $3,299), in stock. The price changed during that day; check it at checkout. Apex 300: Sale price in BLUETTI’s US store on Oct 21, 2026 (list price $1,699), in stock.

Full numbers: ALLPOWERS R4000 · BLUETTI Apex 300 · all 16.

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