Samsung Galaxy S21 Ultra Battery Case 4700mAh – Black

(2 customer reviews)


  • Compatible Model: This battery case is for Samsung Galaxy S21 Ultra only.
  • Supports simultaneous charging.
  • 4 LED power indicators shows power status of external battery case (25%–50%–75%–100%).
  • Please fully charge the battery case before using the product.
  • Gently bend back the flexible rubber top and carefully slide the phone into the battery box. To remove the case, gently slide the phone up out of the socket, DO NOT pull phone forward.
  • It is manual, not automatic, manually press the button on the back for 3s to start or stop charging.
  • Hard Shell and Shock Absorbing Rubber with Matte Black Coating for Comfortable Grip.
  • This charging case is not waterproof. Please use only in dry environment.

In stock

3 left in stock.

Free shipping over $99
Same day dispatch
1yr warranty
30 day returns
Free gift when cart over $150
Valued at $19.95
Free gift when cart over $250
Free gift when cart over $400
SKU: S21 Ultra Categories: ,


  • Compatible Model: This battery case is for Samsung Galaxy S21 Ultra only.
  • Install carefully when your screen has a protective film.
  • The battery case does not support wired headphones
  • This cases does support Type-C wired earphones
  • Supports Simultaneous Charging: It will charge your case and phone at the same time.
  • Overheat protection, Short circuit protection: its advanced chips protect your smartphone from overheating, short circuiting and overcharging.
  • The smart charging case is not only a portable power bank, but also a protective case for your phone from scratches and daily wear and tear. Raised bezels will help you protect the screen to some extent.
  • Elastic and soft material, just slide the phone into the charging case and installation is done. Make sure your phone is well connected to the case. Press the power button for 3 seconds to start charging Galaxy S21 Ultra.
  • Note: No cables included, please use your original charging cable to charge.

Specification / Package

  • Battery capacity: 4700mAh
  • Input: 5V / 1.5A Output: 5V / 1.0A
  • 1 x battery case
  • 1 x User manual



Additional information

Weight .3 kg

2 reviews for Samsung Galaxy S21 Ultra Battery Case 4700mAh – Black

  1. Geoff (verified owner)

    Really happy with my Samsung S21 Ultra battery case.
    I was struggling to get a full day out of the phone battery. But know I get an easy 2 days. Also as a mechanic I find this case offers great protection and very oil resistant. Every black cover I have had before normally peels due to oils on my hands, but not this one.
    Well made product

  2. michael Holden (verified owner)

    Works well for 12hr shifts phone has power all night. Not to bulky great how you can charge phone and case at the same time.

Add a review

Your email address will not be published.