Twharf USB Rechargeable 9V Lithium Battery 450mAh 9V Battery Rechargeable Review

Rajat Hardy
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You asked and we listened. Today we will review the Twharf USB Rechargeable 9V Lithium Battery 450mAh 9V Battery Rechargeable.

Let’s see why it’s such a popular product.

Our rating: 7 / 10

Cost: $

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  • Great quality battery
  • Safety Protection Chips
  • Cheap
  • Recharges fast
  • Can be charged 10,000 times
  • Superior Performance
  • Side by side with Duracells and Energizer
  • Ideal for cameras and other devices


  • Safety card is in Chinese
  • No light to tell if charging is complete
  • No good for toys
  • Total charge time is about 7 hours
  • Can not be used with continuous play

The Twharf 45 Ah lithium battery 9V has an eco-friendly design with a slipper profile which allows this small battery to be inserted into the tightest of spaces to add an extra USB power outlet to your portable electronic devices.

This innovative design also allows for a side-protected USB charging port. This eliminates hazards associated with USB cords and also allows for the battery to be charged without removing from the outlet.

With a capacity of 45Ah and a charging profile that is designed to maintain the capacity up to 85%, this battery also has a data capacity of 0.01mb. This means that you can fully charge your cell phone up to 3 times.

With a size of 1.82", depth 1.11" and width 2.02", Twharf could be considered as a little brother of Duracell.

It works with almost any USB device and has received the highest overall score for technical performance in a recent independent survey. The battery also comes with a standard 30 day warranty.

The Twharf 45ah battery 9V is also available in a number of attachments which cover most common USB power transformers.

A companion battery is required for this product to operate. If you don't have a companion battery, you can purchase one separately.

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Not what you’re looking for? Read our roundup review: The Best Rechargeable Batteries (2022 Reviews)