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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 10

sonnen

74/ 100

Very good

Limited evidence coverage · 10%

Evidence checked 2026-06-16

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

Ocean 2

EcoFlow

82/ 100

Superior

Limited evidence coverage · 6%

Evidence checked 2026-06-20

LFP100% UsableHigh Power 10kW+15yr Warranty
Full scorecard
Side by side

Score profile

MeasuresonnenBatterie 10Ocean 2
Capacity & Usability80 / 100100 / 100
Power & Efficiency62 / 10073 / 100
Longevity (verified)84 / 10084 / 100
Safety & Chemistry67 / 10093 / 100
Guarantee & Backbone81 / 10064 / 100
Energy Ecosystem74 / 10076 / 100

Capacity & Usability

sonnenBatterie 10
80 / 100
Ocean 2
100 / 100

Power & Efficiency

sonnenBatterie 10
62 / 100
Ocean 2
73 / 100

Longevity (verified)

sonnenBatterie 10
84 / 100
Ocean 2
84 / 100

Safety & Chemistry

sonnenBatterie 10
67 / 100
Ocean 2
93 / 100

Guarantee & Backbone

sonnenBatterie 10
81 / 100
Ocean 2
64 / 100

Energy Ecosystem

sonnenBatterie 10
74 / 100
Ocean 2
76 / 100
Side by side

Key specifications

MeasuresonnenBatterie 10Ocean 2
Published usable capacity range10 kWh5–60 kWh
ChemistryLFPLFP
Power4.6 kW12 kW
Round-trip96.8 %90 %
Cycle life10,000 cycles10,000 cycles
Scored benchmarkNot stated5.02 kWh

Published usable capacity range

sonnenBatterie 10
10 kWh
Ocean 2
5–60 kWh

Chemistry

sonnenBatterie 10
LFP
Ocean 2
LFP

Power

sonnenBatterie 10
4.6 kW
Ocean 2
12 kW

Round-trip

sonnenBatterie 10
96.8 %
Ocean 2
90 %

Cycle life

sonnenBatterie 10
10,000 cycles
Ocean 2
10,000 cycles

Scored benchmark

sonnenBatterie 10
Not stated
Ocean 2
5.02 kWh
Decision snapshot

Where the comparison separates

OverallOcean 2 leads the global score by 8 points.
Strongest dimensionssonnenBatterie 10: Longevity (verified) · Ocean 2: Capacity & Usability
Largest differenceOcean 2 has the largest pillar edge in Safety & Chemistry (26 points).
Evidence coveragesonnenBatterie 10: limited evidence coverage (10%) · Ocean 2: limited evidence coverage (6%)

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.