Sold and shipped by: Chengjia Chengjia
71 Ratings (79% Positive)
  • $117.99

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ZEROLEMON Galaxy S21 Ultra Battery Case 8000mAh, Fast Charging & Wireless Charging & Samsung Dex Supported, Ultra Power Extended Battery Charger Protective Case for Galaxy S21 Ultra 5G - Black

In stock.
Ships from China.
Most customers receive within 4-16 days.
  • Extend about 110% Power to Samsung Galaxy S21 Ultra 5G - The powerful 8000mAh Li-polymer rechargeable extended battery effectively adds over one full charging to Galaxy S21 Ultra; Keep your Galaxy S21 Ultra 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 ULTRA 5G# ONLY!!!
  • Fast Charging & Wireless Charging Supported: With premium Li-polymer batteries, ZeroLemon Ultra Power Galaxy S21 Ultra 8000mAh battery case can be fast charged by QC 3.0 chargers, PD chargers and Samsung 25W USB C super fast PPS chargers; Phone S21 Ultra 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 S20 Ultra and a computer
ZeroLemon Ultra Power Galaxy S21 Ultra Battery Case 8000mAh: for Galaxy S21 Ultra 5G 6.8'' ONLY!We suggest you use Samsung 25W travel adapter or our 20W USB C PD Charger and the cable coming with the phone when you use ZEROLEMON Galaxy S21 Ultra battery case; otherwise some features of this battery case may not be supported
Notes for Fast Charging (Doesn't work with any special cables, like the cable coming with Samsung 45W USB C PPS charger or E-marker cables):
Super Fast charging passing through the case: when the phone and the battery case are plugged in with Samsung 25W travel adapter, Galaxy S21 Ultra will be super fast charged
Battery case being fast charged: when the battery case alone is plugged in, it will be fast charged
Battery case CANNOT fast charge Galaxy S21 Ultra: when the battery case is charging the phone, phone cannot be fast charged

Product Features at a Glance:
Edge Panel function of the phone will be useless when the battery case is installed.
Adds about 110% Power to Galaxy S21 Ultra
Fast Charging & Wireless Charging Supported
Android Auto & Data SYNC & Samsung Dex (work with USB C to C cables only) Supported
Four raised AirCusion corners add more protection to Galaxy S21 Ultra from bumps

Android Auto SupportedWith this battery case, you can still have the fun and convenience Android Auto APP brings
Wireless Charging SupportedPut the battery case on a wireless charger until the phone starts being charged
Samsung Dex SupportedOnly works with USB C to C cables. Doesn't work with HDMI cables
Charging Time (with Samsung 25W travel adapter and the cable coming with the phone):
To fully charge the battery case: about 4 hours
To fully charge the battery case and the phone: about 5 hours
Battery case fully charges the phone: about 2 hours

Important Notes:
This battery case doesn't support AKG wired USB-C headsets or OTG any more
The case is NOT waterproof
This case is not designed to provide screen protection
It is NOT compatible with full edge tempered glass screen protectors
Press the case's power button 3 seconds to start and stop charging.
There is no charging cable coming with the battery case. You can use the cable coming with the phone to charge it

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
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