BoostCharge Plus Power Bank vs UltraCharge Slim Magnetic Power Bank: which is safer?

Belkin UltraCharge Slim Magnetic Power Bank is our pick: better on PFAS and on the overall hazard picture.

Belkin

BoostCharge Plus Power Bank

PFAS grade

B 85/100

Overall grade

D 67/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Lithium-ion battery, plastic housing, internal electronics

Confidence

72%

PossibleLithium-ion thermal runaway risk

PossibleVolatile organic compound (VOC) off-gassing from internal adhesives

ReportedBattery swelling or venting under fault conditions

Why this gradeBuy

Our pick

Belkin

UltraCharge Slim Magnetic Power Bank

PFAS grade

B 85/100

Overall grade

C 77/100

Verdict

Buy

Hazard flags

⚑ 2

Material

lithium-ion battery, plastic housing, aluminum casing

Confidence

72%

PossibleLithium-ion thermal runaway and fire risk

PossibleBattery swelling and casing rupture over time

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 phone chargers & cables: see the full ranking