Survivor Extreme Case for iPhone 11 Pro vs Juice Pack Battery Case for iPhone 15: which is safer?

Mophie Juice Pack Battery Case for iPhone 15 is the clear pick. Griffin Survivor Extreme Case for iPhone 11 Pro carries a failing PFAS grade, and we never recommend buying a failing product.

Griffin

Survivor Extreme Case for iPhone 11 Pro

PFAS grade

F 50/100

Overall grade

F 38/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Polycarbonate plastic with unspecified coatings

Confidence

35%

PossibleUnspecified surface coatings and adhesives

PossiblePolycarbonate polymer degradation over time

PossibleOff-gassing of volatile organic compounds (VOCs)

Why this grade

Our pick

Mophie

Juice Pack Battery Case for iPhone 15

PFAS grade

B 85/100

Overall grade

C 73/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Lithium-ion battery, plastic housing, metal contacts

Confidence

65%

PossibleLithium-ion battery thermal runaway risk

PossibleElectromagnetic field exposure

PossibleCounterfeit or degraded battery cell defects

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More waterproof smartphone cases: see the full ranking