Multiple choice general knowledge science & technology

Select the lightest battery among the following

  1. Li-ion

  2. Li-polymer

  3. Ni-Cad

  4. Ni-Mh
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lithium-polymer batteries are lighter than lithium-ion batteries with equivalent capacity due to their pouch-style flexible packaging that eliminates the rigid metal canister. Both Li-ion and Li-polymer offer superior energy density compared to older Ni-Cd and Ni-MH chemistries, but the polymer variant's construction makes it the lightest option per unit of energy stored.

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