![My brother bought a 20000mAh powerbank it couldn't fully charge his phone so my mom opened the powerbank and they found this... Only 3 batteries are connected to the powerbank and the My brother bought a 20000mAh powerbank it couldn't fully charge his phone so my mom opened the powerbank and they found this... Only 3 batteries are connected to the powerbank and the](https://i.redd.it/mmgw0v5t5aa41.jpg)
My brother bought a 20000mAh powerbank it couldn't fully charge his phone so my mom opened the powerbank and they found this... Only 3 batteries are connected to the powerbank and the
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Power Bank Case 18650 | Charging Storage Case | Mobile Phone Charger | Box 18650 Battery - Battery Storage Boxes - Aliexpress
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POW1 - Emergency USB Battery Powered Power Bank Compact Portable uses 4 AA Ideal for Smartphones, Tablets, Mobile, Apple, iPhone, Android/5055751557704
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