Solar Lab · Methodology v2.3 · Updated weekly

Real specs.
Real decisions on power hardware.

Engineering-grade research, proprietary runtime datasets and decision engines. No sponsored rankings. No editorial opinions. Every score is a weighted aggregate of measured properties.

177
Products tracked
4
Labs
125
Articles published
0
Sponsored rankings
Solar Generator Calculator
104 products · weekly
Scenario
Appliances · 255 W
Runtime
Solar recharging
Budget
$2,000
$0$2.5k$5k
Estimated need
2,040 Wh
Load
255 W

See all 104 products analyzed and top 3 matches

Real Data
Surge Tested
Updated Weekly
No Sponsored Rankings
Transparent Methodology
02 / Live research database

Active monitoring. Continuous analysis.

Last sync: 2 hours ago

View full database
BrandModelCapacitySurgeScoreStatus
EcoFlowDELTA 3 Max Plus1,800 Wh6,000 W
90
Verified
BluettiAC5005,500 Wh10,000 W
100
Verified
JackeryExplorer 1000 v2940 Wh3,000 W
60
Verified
Anker SOLIXF38003,400 Wh12,000 W
100
Verified
ZendureSuperBase Pro 20001,850 Wh4,000 W
70
Verified
EcoFlowRIVER 3 Plus440 Wh1,200 W
50
Verified
03 / Comparison snapshot

Structured. Not subjective.

Every metric sourced from manufacturer datasheets and verified against independent runtime tests. We show winners — and we show trade-offs.

View all comparisons
Metric
Unit A
Reference · 2,048 Wh
Unit B
Reference · 2,000 Wh
Capacity
2,048 Wh
2,000 Wh
Surge power
4,800 W
4,800 W
Runtime (215 W load)
13.4 h
11.1 h
Recharge to 80%
65 min
180 min
UPS switchover
20 ms
Cycle life @ 80%
3,000
3,500
Weight
23 kg
27.5 kg
Noise @ 1 m
52 dB
48 dB
Trade-off · Unit A wins on runtime, surge response and recharge. Unit B wins on cycle life and acoustic profile.
04 / Scoring system

Methodology-driven scores.

Every score is a weighted aggregate of measured properties — never editorial opinion. Weights are published, the changelog is public, and every dimension links back to its test protocol.

Methodology v2.3 · 14-day rolling window
Read protocol
Surge handling
9.3 / 10
Cold-start of 4 kW inductive loads
Backup reliability
8.9 / 10
20 ms UPS · 0 dropouts in 96 h test
Efficiency (round-trip)
8.4 / 10
94.1% AC-AC · inverter losses modelled
Expandability
8.2 / 10
Stackable to 6,144 Wh · +400 W solar
Portability
6.8 / 10
23 kg · single-handle carry
Acoustic profile
7.4 / 10
52 dB @ 1 m under 1 kW load
05 / Recommendation logic

Why we recommend it — and where it fails.

Every verdict ships with both halves of the trade-off. Limitations are part of the output, not a footnote.

+ Strengths
  • +Strong surge handling — handles 4,800 W inductive cold-start.
  • +Stable UPS performance — 20 ms switchover, zero dropouts in 96 h test.
  • +Modular expansion path — stacks to 6,144 Wh with a second battery.
  • +Fast recharge — 65 min to 80% from AC.
− Trade-offs
  • Oversized for studio apartments under 35 m².
  • Acoustically noticeable above 1 kW sustained load (52 dB).
  • Locked into single-vendor ecosystem — no third-party battery compatibility.
  • 23 kg — not a true grab-and-go unit.
06 / Current research

Continuously evolving.

6 active threads · monitoring 104 products

R-014
In progress

Real-world battery degradation

12-month tracking of LiFePO4 capacity loss under daily backup cycling.

72%
R-015
Published

Apartment backup simulations

215 W baseline × 6 unit sizes × 3 climate zones.

100%
R-016
In progress

240 V split-phase testing

Whole-home transfer switch behaviour under inductive surge.

38%
R-017
Published

Runtime consistency analysis

Variance of advertised vs measured runtime across 14 stations.

100%
R-018
In progress

Noise performance benchmarking

1 m dB readings under 200 / 600 / 1k / 1.5k W continuous load.

54%
R-019
In progress

Cold-temperature derating

Capacity behaviour at −10 °C / 0 °C / 10 °C ambient.

18%
07 / Methodology

How recommendations are made.

We publish our scoring weights and testing methodology so every verdict is auditable. No paid rankings. No hidden criteria.

Methodology v2.3 · Changelog public
M.01

Spec extraction

Verified manufacturer datasheets cross-referenced with third-party teardowns and independent runtime tests.

M.02

Weighted scoring

Each metric carries a transparent weight based on scenario — runtime, surge, expandability, efficiency, noise, UPS.

M.03

Trade-off analysis

Every recommendation states what the product does NOT do well, and who should not buy it.

M.04

Real-world conditions

Cold temperatures, inverter losses, real appliance draw — modelled, not assumed.

08 / Philosophy

Built to reduce buying mistakes.

P.01

We publish limitations

Every recommendation explains who should not buy the product. No exceptions.

P.02

Trade-offs over hype

There is no universal best. We show the scenarios each product wins — and loses.

P.03

Advisory, not transactional

We earn only when you buy. Brands cannot pay to rank. CTAs respect your autonomy.

09 · Start here

Engineering-grade recommendations. Open the lab.

Solar Lab is live. Battery, EV Charger and Backup Power labs are in active research.