Juice Pack Access Hardshell Battery Case for Apple iPhone 11 vs Juice Pack Battery Case for iPhone 15: which is safer?

Where these two actually differ

• We flag Plastic additives (flame retardants, plasticizers, water repellents) with unknown composit, Lithium-ion battery thermal hazard and electrolyte leakage and Microplastics from degradation during device lifetime on the Mophie and not on the Mophie.
• We flag Lithium-ion battery thermal runaway risk, Electromagnetic field exposure and Counterfeit or degraded battery cell defects on the Mophie and not on the Mophie.
• The Mophie is Hardshell plastic casing, internal battery where the Mophie is Lithium-ion battery, plastic housing, metal contacts, which is most of the difference in these two grades.
• The gap is 35 points, wide enough that this is not a close call, and the Mophie is the one to buy.
• We are less certain about the Mophie grade, at 35% confidence against 65%, because it discloses less.