Galaxy S21 + Battery Case 5000mAh, Fast Charging & Wireless Charging & Samsung Dex Supported, Ultra Power Extended Battery Charger Protective Case for Galaxy S21 + 5G - Black. 

• Extend about 100% Power to Samsung Galaxy S21 + 5G - The powerful 5000mAh Li-polymer rechargeable extended battery effectively adds over one full charging to Galaxy S21 +; Keep your Galaxy S21 + alive all day long; Meanwhile, it adds pretty MUCH weight and volume to the phone; If you buy it for daily use, please make sure you have big hands; Please also note it fits #GALAXY S21 + 5G# ONLY!!!
• Fast Charging & Wireless Charging Supported: With premium Li-polymer batteries,  Ultra Power Galaxy S21 + 5000mAh battery case can be fast charged by QC 3.0 chargers, PD chargers and Samsung 25W USB C super fast PPS chargers; Phone S21 + also can be fast charged through the case with these chargers too; For the sake of security, the battery case is not designed to fast charge the phone; Still, feel free to charge the case with wireless chargers
• Data Sync Phone to Computer & Full Edge Protection- Transferring data freely between Galaxy S21 + and a computer through the battery case. Zero Lemon Ultra Power with soft TPU case offers 360° protection, protecting your Galaxy S21 + from scratches and other daily wears and tears. Feel confident with a phone case that delivers reliable protection all day.
• Android Auto & Samsung Dex Supported: enjoy the fun and convenience Samsung Dex (doesn't work with HDMI cables) and Android Auto APPs bringing to your life and work with no need to take the battery case off.