A-Series External Battery

    • Extreme Durability

      The shell is made from a PC/ABS composite, reinforced with support ridges and fused to a shock-absorbing belt. We even used durable paint for the surface.

    • Charge-Through Capability

      Zendure™ A-Series batteries can charge your devices while being charged, which means you only need one power source for your A-Series and two phones.

    • Dual USB Output

      The A3, A4 and A5 have two USB outputs that can supply 10W of power total.

    • Superior Quality

      A better battery starts with better components. The internal lithium-ion cells are made by top manufacturers, and the final assembly is carried out by one of the preeminent experts in reusable batteries.

    • Long-Term Standby

      Zendure™ A-Series batteries can retain up to 95% of their stored energy after six months without use, making them a crucial part of an emergency preparedness kit for your car or home.

    • Auto-On Feature

      Zendure™ A-Series batteries turn themselves on automatically when connected to most compatible devices. In addition, the intelligent circuitry will resume charging if interrupted.

Style or durability? Choose both.

Our goal with the A-Series was simple: introduce an external battery that was tough enough to go anywhere, while also making sure it looked good enough that you'd want to take it everywhere.

Extreme Durability

The shell is made from a PC/ABS composite, reinforced with support ridges and fused to a shock-absorbing belt. We even used durable paint for the surface.

Charge-Through Capability

Zendure™ A-Series batteries can charge your devices while being charged, which means you only need one power source for your A-Series and two phones.

Dual USB Output

The A3, A4 and A5 have two USB outputs that can supply 10W of power total.

Superior Quality

A better battery starts with better components. The internal lithium-ion cells are made by top manufacturers, and the final assembly is carried out by one of the preeminent experts in reusable batteries.

Long-Term Standby

Zendure™ A-Series batteries can retain up to 95% of their stored energy after six months without use, making them a crucial part of an emergency preparedness kit for your car or home.

Precision and Pride

Dual-injection molding. ABS/PC composite. Reinforced shell. You probably won't ever need to think about the technology that goes into the A-Series, and you probably won't run over your battery with a car like we did. But when you hold an A-Series External Battery in your hand, you'll know why those details matter to us.

A2-cards
Precision_03

Precision and Pride

Dual-injection molding. ABS/PC composite. Reinforced shell. You probably won't ever need to think about the technology that goes into the A-Series, and you probably won't run over your battery with a car like we did. But when you hold an A-Series External Battery in your hand, you'll know why those details matter to us.

A2-cards

Introducing A2

Here's a trick you'll always want up your sleeve: twenty percent smaller, thirty percent lighter, one hundred percent A-Series.

A2-cards

Introducing A2

Here's a trick you'll always want up your sleeve: twenty percent smaller, thirty percent lighter, one hundred percent A-Series.

Accessories Included with Every A-Series Battery

Cloth Carrying Pouch

6" Micro-USB Charging Cable

Product Specifications

A2-compare A3-compare A4-compare A5-compare
Model Name A2 A3 A4 A5
Capacity 6,000 mAh / 22.2 Wh 9,000 mAh / 33.3 Wh 12,000 mAh / 44.4 Wh 15,000 mAh / 55.5 Wh
Dimensions 3.7" x 2" x 1"
94mm x 50mm x 24mm
3.8" x 2.5" x 1"
96mm x 62mm x 24mm
4.5" x 2.8" x 1"
108mm x 72mm x 24mm
5" x 2.8" x 1"
127mm x 73mm x 24mm
Weight 5 oz / 140 g 7.2 oz / 200 g 9.3 oz / 260 g 11.4 oz / 320 g
Power In: 5V 1.5A (Max) / Out: 5V 2.1A (Max)
Product Life Over 500 Full Charge-Discharge Cycles
Support Manual Manual Manual Manual
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Weatherproof Zipper Case: The Ultimate A‑Series Companion

With its sturdy exterior, water-resistant material and secure zippers, the Weatherproof Zipper Case protects and organizes your mobile devices on the go. Now available on Amazon.

Weatherproof Zipper Case: The Ultimate A‑Series Companion

With its sturdy exterior, water-resistant material and secure zippers, the Weatherproof Zipper Case protects and organizes your mobile devices on the go. Now available on Amazon.