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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.
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
Weight : 400g
Dimensions : 140 x 69 x 26 mm
Accessories (Included) : Micro-USB

Download the user manual here
Worldwide free shipping
We use by default BPost International for European shipping. Delivery time is usually 3-5 working days.
You can also choose for UPS or GLS shipping in order to get your package faster. Rates our calculated at the checkout.
NB: For Countries outside EU buying items ex. VAT, be aware you have to pay import taxes according to the laws of that specific country. In case of returns, we are not able to return any duties or taxes, as this is paid to and handled directly between you (the customer) and your country.
Return policy
If you want to change a product into another size, color etc, please contact us so we are able to reserve the new item in our stock immediately. You are always entitled to an exchange or refund within 14 days after you have received your package, as long as the item has not been used. All original packaging, price labels etc. shall be returned with the product without having been tampered with.
2 years warranty.
WHY CHOOSING THIS POWERBANK ?
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.

HIGH CAPACITY
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.


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 outdoor.
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.


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.
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.
CHARGE THE GRAVITY 20 WITH THE SUN
Also looking for a reliable and ecological way to charge your powerbanks ?
Sunslice is an expert in the portable solar panels industry and provides a large range of efficient and robust solar panels.
Discover our flexible and unbreakable solar panels hereunder and combine them with your Gravity powerbank
