Nitecore Gravity 20 Fast Portable Power Bank

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The Gravity 20 is a high-capacity portable battery pack with a compact size and lightweight design. It can recharge up to 6 smartphones in a single cycle, with each port delivering up to 18W of power simultaneously. The lithium-ion battery can maintain 70-80% of its capacity after 500 charge cycles, providing good longevity.

We are unable to use our normal shipping services for Power Banks. This means if there is a Power Bank in your order, we are unable to offer free shipping. There will be a small delivery charge at the checkout to cover the cost of a certified courier. We are also unable to send Power Banks outside of the UK.

Sunslice says: 

The Gravity 20 powerbank is powerful external batteries designed to charge your devices quickly and efficiently. It is also perfectly adapted to store your surplus solar energy. The Gravity 20 has a 20’000 mAh capacity. This means that it can charge up to 6 smartphones in 1 cycle. This high capacity powerbank can also charge many other devices.

Our Verdict

The Gravity 20 from Sunslice is a high-capacity 20,000mAh portable battery pack that promises to quickly and efficiently charge your devices on the go. With its sizable battery, it can recharge up to 6 smartphones in a single cycle, making it a great option for travelers or those who need to keep multiple gadgets powered up.

One of the major selling points is the compact size and lightweight design. Weighing just 401g and measuring 140 x 69 x 26 mm, the Gravity 20 is impressively portable for having such a large 20,000mAh capacity. It’s small enough to easily slip into a jacket pocket or bag.

Charging speed is another highlight, with fast charge technology allowing each port to deliver up to 18W of power. You can charge up to 3 devices simultaneously at max speed via the 2 USB-A and 1 USB-C port. This is a nice convenience to quickly top up multiple gadgets at once.

The built-in battery uses lithium-ion cells, which are more energy dense and longer lasting compared to older battery technologies. Sunslice says it can maintain 70-80% of its capacity after 500 charge cycles, providing good longevity.

In addition to functioning as a power bank, the Gravity 10 is designed to pair with Sunslice’s portable solar panels if you want an eco-friendly way to recharge using renewable solar energy when camping or off-grid.

Overall, the beefy 20,000mAh capacity combined with the fast charging capabilities and compact, lightweight design make the Gravity 20 a compelling portable charger option

– Reviewed by Ultralight Outdoor Gear

Features

• 20’000 mAh POWERBANK -The Gravity 20 powerbank is a powerful external battery designed to charge your devices quickly and efficiently. It is also perfectly adapted to store your surplus solar energy.
• 20’000 mAh POWERBANK -The Gravity 20 powerbank is a powerful external battery designed to charge your devices quickly and efficiently. It is also perfectly adapted to store your surplus solar energy.
• COMPACT FORMAT – The small dimensions of the Gravity 20 makes it a perfect powerbank to carry in your pocket when travelling or going in the
• LIGHTWEIGHT – The Gravity 20 weight only weights 400g, unbeatable for a 20’000 mAh capacity powerbank. Take it everywhere with you and never run out of battery anymore.
• EASY TO USE – There has never been a more easy way toc harge your smartphone. Just insert your charging cable into the battery and connect it to your device. It starts charging automatically.
• CHARGES FAST – This high-end powerbank integrates fast charge technology. Every port can deliver 18W power and 3 devices can be charged at the same time. No need to worry about waiting, your devices will be charged up in no time.

Specifications

• Weight: 401g
• Dimensions : 140 x 69 x 26 mm
• Capacity : 20’000 mAh
• Technology : Lithium-Ion
• Output : 2 x USB-A 18W : 5V/3.6A, 9V/2A, 12V/1.5A, 1 x USB-C 18W : 5V/3.6A, 9V/2A, 12V/1.5A
• Total Max Output : 18W
• Input : 1 x USB-C 18W : 5V/3.6A, 9V/2A, 12V/1.5A, 1 x Micro-USB 18W : 5V/3.6A, 9V/2A, 12V/1.5A
• Battery Charging Status : 4 x LED Indicators (white)
• Pass-Through : no
• Accessories (Included) : Micro-USB