SimpliPhi Review 2026
SimpliPhi manufactures 2 models across batteries.
Headquartered in International · Manufacturing in Various
Founded 2010 by Catherine Von Burg, Stuart Lennox · Headquartered in Wauwatosa, Wisconsin, United States
Parent company: Briggs & Stratton (acquired 2021)
SimpliPhi at a glance
Certifications: UL 9540 · UL 1973
Warranty: 10-yr product · 10-yr performance
Key milestones
- 2010 Founded in California as off-grid LFP pioneer
- 2021 Acquired by Briggs & Stratton
SimpliPhi Pros & Cons (data-driven)
+ Pros
- ✓ Battery round-trip efficiency averages 97% (above industry 90%)
− Cons
- ✗ Distributor and installer pricing varies — direct retail rarely available
- ✗ Some 2026 models depend on regional distributor availability
Pros and cons calculated against industry baselines: 21% panel efficiency, 12yr panel warranty, -0.32%/°C temp coeff, 90% battery RTE.
Current SimpliPhi Product List (2)
Spec Sheet Downloads
No manufacturer-published datasheet links indexed yet for SimpliPhi. Visit the per-product page for spec details and any source links we have.
Recent SimpliPhi News
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Frequently Asked Questions
What is the SolarSpec Score for SimpliPhi?
SimpliPhi earns a SolarSpec Score of 94/100 (Grade A) based on the weighted average of all 2 models in their 2026 lineup. The score combines efficiency, warranty, temperature coefficient, and verification status. See our /methodology/ page for the full formula.
How many solar products does SimpliPhi offer in 2026?
SimpliPhi offers 2 products in their 2026 lineup: 2 batteries.
How we score brands
Every SimpliPhi model in our catalog is scored 0-100 using a transparent formula: efficiency (25 pts), product warranty (20 pts), performance warranty bonus (3 pts), temperature coefficient (12 pts), and datasheet verification (5 pts), on a 50-point baseline. The brand-level score is the simple average across all 2 models.
Read the full SolarSpec methodology →