با پیشرفت تکامل الکترونیک قابل حمل، وزن دستگاه همچنان کاهش می یابد. در بسیاری از موارد، باتری یا بسته باتری مهم ترین جزء یک دستگاه الکترونیکی قابل حمل را تشکیل می دهد.
Generally, carbon-based batteries offer lower weight compared to alkaline batteries but sacrifice performance.
Lithium battery cells, on the other hand, are lighter than alternative primary chemistries. For instance, while a AAA alkaline battery typically weighs around 12 grams, a AAA lithium battery weighs only 8 grams. Moreover, lithium cells typically boast superior shelf life and performance.
Li-ion and lithium polymer batteries significantly outweigh other rechargeable batteries of similar size, contributing to the enhanced portability of numerous electronic devices.