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Tandem+ 20,000mAh
4-in-1 Power Bank
Power You Can Rely On

Whether you have an old phone or a brand new one, an Apple or an Android, Tandem's built-in USB-C and Lightning cables ensure you'll always have what you need to charge.

USB-C and Lightning Fast Charging
20W

Lightning

30W

USB-C

Built-in USB-C Charging Cable

Shows Charging & Battery Status

Built-in Lightning Charging Cable

Charge in Tandem+

Tandem+ can charge two devices at once, while being recharged itself.

Powerful Battery

Great for family trips, the 20,000mAh battery of Tandem+ can fully charge most phones three times, with enough power left over to power earbuds and smartwatches.

Faster Than Wireless

Tandem+'s built-in cables can fast charge your phone with up to 30W of power, enough to charge a MacBook Air and twice as fast as MagSafe or Qi2 wireless charging.

Easy to Carry

Tandem's looped USB-C cable make it easy to store when not in use.

30W USB-C
Fast Charging
Frequently Asked Questions

General

Which output is fastest?
Tandem’s USB-C and USB-A outputs share the same max charging speed (22.5W), a little faster than Tandem’s 20W Lightning cable.
How many times can this charge my phone?
Tandem’s 10,000mAh battery can recharge most phones about 1.5 times.
Can this charge my laptop?
Tandem cannot charge most laptops.
What information is available on Tandem’s screen?
Tandem’s screen shows how charged the power bank’s battery is, as well as whether it’s charging or discharging power.
Can I take Tandem on a plane?
Yes, Tandem and Tandem+ are both below the 100Wh limit most airlines set for battery devices to be allowed in carry-on luggage. ALOGIC recommends checking your airline’s policies before flying.