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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Global benchmark

Premium Integrated

sonnenBatterie 1010 kWh

sonnen | sonnenBatterie 10 (10/11)

LFPAC-coupledSingle-phase

60/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-08-23

LFPVPP-Ready15+ Yrs Field-Proven
Full scorecard
Premium Integrated

Ocean 25.02–60 kWh

EcoFlow | EcoFlow OCEAN 2 three-phase with EF BD-5-S2; 5.02 kWh scored reference, expandable in 5.02 kWh modules

LFPAll-in-oneThree-phase

62/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-08-23

LFP15yr WarrantyVPP-Ready5 kWh Modular
Full scorecard
Side by side

Score profile

MeasuresonnenBatterie 10Ocean 2
Capacity & Usability58 / 10070 / 100
Power & Efficiency50 / 10053 / 100
Longevity (verified)60 / 10061 / 100
Safety & Chemistry67 / 10088 / 100
Guarantee & Backbone77 / 10050 / 100
Energy Ecosystem48 / 10044 / 100

Capacity & Usability

sonnenBatterie 10
58 / 100
Ocean 2
70 / 100

Power & Efficiency

sonnenBatterie 10
50 / 100
Ocean 2
53 / 100

Longevity (verified)

sonnenBatterie 10
60 / 100
Ocean 2
61 / 100

Safety & Chemistry

sonnenBatterie 10
67 / 100
Ocean 2
88 / 100

Guarantee & Backbone

sonnenBatterie 10
77 / 100
Ocean 2
50 / 100

Energy Ecosystem

sonnenBatterie 10
48 / 100
Ocean 2
44 / 100
Side by side

Key specifications

MeasuresonnenBatterie 10Ocean 2
ArchitectureAC-coupled batteryAll-in-one energy system
Published usable capacity range10 kWhNot stated
ChemistryLFPLFP
Power4.61 kW3.4 kW
Round-tripNot recordedNot recorded
Cycle lifeNot recordedNot recorded
Published nominal battery capacity rangeNot stated5.02–60 kWh
Scored benchmarkNot stated5.02 kWh

Architecture

sonnenBatterie 10
AC-coupled battery
Ocean 2
All-in-one energy system

Published usable capacity range

sonnenBatterie 10
10 kWh
Ocean 2
Not stated

Chemistry

sonnenBatterie 10
LFP
Ocean 2
LFP

Power

sonnenBatterie 10
4.61 kW
Ocean 2
3.4 kW

Round-trip

sonnenBatterie 10
Not recorded
Ocean 2
Not recorded

Cycle life

sonnenBatterie 10
Not recorded
Ocean 2
Not recorded

Published nominal battery capacity range

sonnenBatterie 10
Not stated
Ocean 2
5.02–60 kWh

Scored benchmark

sonnenBatterie 10
Not stated
Ocean 2
5.02 kWh
Decision snapshot

Where the comparison separates

OverallOcean 2 leads the global score by 2 points.
Strongest dimensionssonnenBatterie 10: Guarantee & Backbone · Ocean 2: Safety & Chemistry
Largest differencesonnenBatterie 10 has the largest pillar edge in Guarantee & Backbone (27 points).
Evidence coveragesonnenBatterie 10: strong evidence coverage (100%) · Ocean 2: strong evidence coverage (100%)

A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.

Both products are scored in the Premium Integrated class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.