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BLUETTI · EP series

BLUETTI 2×EP800 + 8×B500

A 39.7 kWh LiFePO4 station with 15,200 W of output, rated for 3,500 cycles. What it sells for, what it runs, how it fared in 0 written head-to-heads, and what owners report.

39.7 kWh · 15,200 W · 1213.2 lb · 3,500 cycles · 0 head-to-heads

26,050

Power Score · Grid-Independent

BLUETTI 2*EP800 + 8*B500
39.7 kWh
capacity
15,200 W
output
1213.2 lb
weight
3,500
rated cycles

Should you buy it right now?

2×EP800 + 8×B500: 39,680Wh, clears 6 of 6 real-world jobs, wins 0 of 0 matchups.

Test Desk·Figures computed 2026

01 · Six real-world jobs

What the 2×EP800 + 8×B500 actually runs

The load profiles every comparison on the site is scored on, computed for this unit alone: energy needed against the usable tank after inverter losses, and whether the inverter holds and starts the biggest single load.

  • Weekend Camping

    Clears it

    2 nights · Two nights off-grid with essential comfort

    2,100Wh needed · 6% of the tank · 31,628Wh spare

    Peak 75W: starts and holds

  • 8-Hour Blackout

    Clears it

    8 hours · Keep the essentials running through a night without power

    1,645Wh needed · 5% of the tank · 32,083Wh spare

    Peak 150W: starts and holds

  • CPAP Overnight

    Clears it

    8 hours · Sleep therapy without interruption — the #1 medical use case

    320Wh needed · 1% of the tank · 33,408Wh spare

    Peak 40W: starts and holds

  • Remote Workday

    Clears it

    8 hours · Full work day off-grid without power anxiety

    910Wh needed · 3% of the tank · 32,818Wh spare

    Peak 60W: starts and holds

  • Tailgate Party

    Clears it

    4 hours · Game day power for the crew

    670Wh needed · 2% of the tank · 33,058Wh spare

    Peak 400W: starts and holds

  • Van Life Daily

    Clears it

    24 hours · A full day of mobile living — the ultimate endurance test

    4,685Wh needed · 14% of the tank · 29,043Wh spare

    Peak 150W: starts and holds

06 · Where each number comes from

Spec sheet, in four cards

Every field carries its source: green is the manufacturer’s own document, blue was adjudicated after sources disagreed, grey is the catalogue as imported. Then compare it line by line with the units people actually weigh it against.

Battery

39680

Capacity (Wh)

  • ChemistryLiFePO4
  • Charging Cycles3500
  • Battery Expansion FeasibilityNo

Power out

15200

Output (W)

  • Surge PeakNot Specified
  • AC OutletsHardwired (120/240V)
  • 240V OutletsHardwired
  • 30A RV Outlets0
  • 12V Car Outlets0
  • USB-C Ports0
  • USB-A Ports0
  • USB-C Charging Outputs0

Charging

18000

Solar Input (W)

  • Solar Input TypeDual PV (150-500V) x2

Living with it

1213.2

Weight (lbs)

  • Noise Level (db)Not Specified
  • UPSYes (20ms)
  • App ControlYes
  • Warranty (Years)Not Specified

Compare it with

2×EP800 + 8×B500 vs

leads on 1 · trails on 4

Spec2×EP800 + 8×B5002×EP900 + 6×B500Gap
Usual price$29,998$28,196+$1,802
Capacity (Wh)3968029760+9920
Output (W)1520018000-2800
Surge (W)Not SpecifiedNot Specified
Rated cycles35006000-2500
Solar input (W)18000180000
Weight (lb)1213.2932+281.2
Noise (dB)Not Specified<50
AC outletsHardwired (120/240V)Hardwired
USB-C ports000
Warranty (yr)Not Specified10
ChemistryLiFePO4LiFePO4
UPSYes (20ms)Yes (<10ms)

● marks the better figure where direction is clear. Price is each unit’s usual price.

Open the 2×EP900 + 6×B500 →

07 · BLUETTI EP line

Where it sits in the line

Capacity bars are to scale across the line; prices are each unit’s usual price, not today’s.

  1. BLUETTI EP500

    EP500

    5.1 kWh · $2,999

  2. BLUETTI EP500Pro

    EP500Pro

    5.1 kWh · $3,499

  3. BLUETTI EP800 + 2*B500

    EP800 + 2×B500

    9.9 kWh · $6,999

  4. BLUETTI EP900 + 2*B500

    EP900 + 2×B500

    9.9 kWh · $10,298

  5. BLUETTI EP800 + 3*B500

    EP800 + 3×B500

    14.9 kWh · $6,299

  6. BLUETTI EP900 + 3*B500

    EP900 + 3×B500

    14.9 kWh · $13,798

  7. BLUETTI EP800 + 4*B500

    EP800 + 4×B500

    19.8 kWh · $7,999

  8. BLUETTI 2*EP800 + 4*B500

    2×EP800 + 4×B500

    19.8 kWh · $17,999

  9. BLUETTI EP900 + 4*B500

    EP900 + 4×B500

    19.8 kWh · $17,298

  10. BLUETTI 2*EP900 + 4*B500

    2×EP900 + 4×B500

    19.8 kWh · $21,196

  11. BLUETTI 2*EP800 + 6*B500

    2×EP800 + 6×B500

    29.8 kWh · $23,998

  12. BLUETTI 2*EP900 + 6*B500

    2×EP900 + 6×B500

    29.8 kWh · $28,196

  13. BLUETTI 2*EP800 + 8*B500

    2×EP800 + 8×B500

    39.7 kWh · $29,998

  14. BLUETTI 2*EP900 + 8*B500

    2×EP900 + 8×B500

    39.7 kWh · $35,196

08 · At its usual price

Cost of ownership

Cycle life is the manufacturer’s rating to 80% capacity; the lifetime figure is that rating times the nameplate capacity.

$0.76

per Wh

at $29,998

$0.22

per lifetime kWh

138,880 kWh over 3,500 cycles

9.6 yr

if cycled daily

34 yr at weekends only

warranty