Quarter: A Fast Charging Powerbank

US$27281of US$10000
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This isn’t a typical crowdfunding scenario where the product is still only a prototype. We are already in the process of manufacturing the first batch for international customers. The first 1000 units will be ready around November 10th.

Shipping Information

It'll be shipped out around November 15th. It usually takes 4-10 days to the US and Europe. Otherwise, 10-20 days to other countries. 

Is your Powerbank Always Dead?

Tired of constantly searching and waiting at the nearest power outlet to charge your phone?

Extremely Fast charging

Using the standard MacBook charger, within 15 minutes, Quarter can take up enough power to charge an iPhone 5S

As Featured On

9to5mac Macrumors

How Does It Work?

Elegant Design

Slim design and simple functionality means it slips straight into your pocket and activates with a shake or tap.


High Voltage, big current & fast charging.

We raised Quarter's battery core voltage from the normal 3.7V to 7.4V. To ensure it's performance & stability under higher voltages and bigger currents, we redesigned Quarter's circuit. Furthermore, we managed to reduce the internal resistance by optimising the Li-Ion polymer battery. This gives Quarter the ability to endure higher charging power.

on 24th Nov 2015 at 1:47pm. The payment portal is closed now.
US$16 +Quarter Car AdapterA special reward for supporters that require extra Car Adapters - get a Car Adapter at $16!
3 Chosen | Unlimited AvailableEst. delivery is November 2015
US$38 +All GoneSuper Early Bird You will get one Quarter Super Charge Powerbank with a engraving name of your choice (RRP $59). Simply specify the what you want to engrave in the memo when pledging. Shipping in November.
200 Chosen | 0 AvailableEst. delivery is November 2015
US$39 +Quarter Super PowerBankA special reward for our supporters - get a Quarter at $39! (RRP $59) Shipping in November !!
154 Chosen | 446 AvailableEst. delivery is November 2015
US$55 +Quarter Car Adapter PackA special reward for our supporters - get a Quarter PowerBank and a Quarter Car Charge Adapter at $55! (RRP $75) Shipping in November!
137 Chosen | 63 AvailableEst. delivery is November 2015