Chidziwitso chamagetsi am'manja

Mphamvu yam'manja, charger yam'manja (power bank, mobile charger, power bank, thumba la mkodzo, nanny; English: Power bank) ndi charger yonyamula yomwe imatha kunyamulidwa ndi munthu ndipo imatha kusunga magetsi. Amagwiritsidwa ntchito kwambiri kulipiritsa zinthu zamagetsi zamagetsi monga zida zam'manja (monga mafoni opanda zingwe ndi ma laputopu), makamaka m'malo omwe mulibe magetsi akunja. Zigawo zake zazikulu ndi izi: mabatire osungira mphamvu, ma circuits for stabilizing output voltage (DC-DC converter), komanso magetsi ambiri a m'manja amabwera ndi ma charger omangidwa{3}}mu mabatire.
Kuwonekera kwa mphamvu yam'manja poyambirira kunali kulipiritsa zinthu zamagetsi zamagetsi m'malo omwe kulibe magetsi akunja, koma chifukwa mawonekedwe ake otulutsa ndi mawonekedwe owoneka bwino a USB, amagwiritsidwanso ntchito kupatsa mphamvu zida zina kapena zida zomwe zimagwiritsa ntchito mawonekedwe a USB ngati malo olowera mphamvu, monga nyali za USB LED, mafani amagetsi a USB, ndi zina zambiri.