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Monster Mobile® PowerCard™

Ultra-slim portable battery (Cherry Red)

4 Reviews | 3 questions - 3 answers

Item # 119133345

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Was: $39.99

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Our take on the Monster Mobile® PowerCard™

It's not called the PowerCard for nothing. This ulta-slim portable battery from Monster about of the size of a credit card, yet it can provide up to five hours of energy to your smartphone. It's so thin you could actually slip it into your wallet.

It's not called the PowerCard for nothing. This ulta-slim portable battery from Monster about of the size of a credit card, yet it can provide up to five hours of energy to your smartphone. It's so thin you could actually slip it into your wallet.

Monster Mobile PowerCard

About the size of a credit card, the PowerCard packs enough power to recharge a smartphone.

The PowerCard's USB port makes it compatible with the charging cables for most any electronic portable. To recharge the PowerCard, just use its included micro-USB charging cable to plug into your computer or USB wall adapter.

Product Highlights:

  • provides up to 5 hours additional power for your smartphone
  • LED charge indicator
  • USB charging port
  • micro-USB charging input cable for charging the internal battery using a smartphone charger
  • 1650mAH rechargeable lithium-polymer battery
  • 2-1/8"W x 13/16"H x 1/4"D
  • weight: 0.3 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • Monster Mobile PowerCard portable battery (red)
  • 5.75" USB cable (Type A USB on one end and Micro USB on other end)
  • Manual and Warranty sheet

Monster Mobile® PowerCard™ Reviews

Average Customer Review(s):

(4 Reviews)

Not worth $0.01

Sarah from knoxville, TN on 3/18/2016

This charger is a waste of money. If you want a charger that shuts off in the middle of a charge, that has enough power to charge your phone 15% and then dies, that gets hot enough to warm your coffee....this is the charger for you.

Pros: It doesn't take up much room in the garbage can.

Cons: It doesn't work.

Monster powercard charger.

Robert from Virginia on 8/25/2015

Crutchfield Customer Review (What's this?)

This product is not to bad at first. But after use about 3 charges of my phone the monster charger started to become very hot in my pocket when I used it to charge my phone. I use it often because I don't have time to be plugged into a wall socket when my phone is low on power. But I had to get a second one after the first one stopped working not to long after I bought it. Both charges that I have used have gotten really hot I do not know if this is normal for this product. I do NOT recommend this product if you plan to use it often. Maybe for emergency. And another note for this product is that it will only charge the smart phone I have to about 90% unless all apps are off.

Pros: Small and easy to carry with you. Great for hiking trips and need a quick charge.

Cons: Gets REALLY hot! The plug in port for when you want to charge something seems flimsy and could break easy if you apply pressure on it. Example: if you have it in your pocket and lean on something.

Monster Mobile Power Card

fj from Union City, CA on 10/12/2014

Crutchfield Customer Review (What's this?)

The product is best suited for emergency use when you are traveling. Its looks, size, quality of work, and convenience of use are its best assets. Color selection influence my selection of this product.

Pros: Size is just right; ease of use and quality of work is very good.

Cons: More mobile power (mAh) output and longer storage time is needed.


Anonymous from Harrisonburg on 9/9/2014

Was told it would charge my phone twice. It only does 90 percent once




Hands-on research

Product Research


Overview: The Monster Mobile PowerCard portable battery is a small, powerful rechargeable battery that you can use to charge your mobile phone, portable music player, or any device that charges via USB. The 1/4-inch thick, credit card-sized PowerCard has a sleek, brushed aluminum exterior case.

Battery: The PowerCard is equipped with a 1650mAh Lithium-Polymer battery. That's enough power to provide about 5 hours of energy to your smartphone. The PowerCard has a 1.5A output for quick charging of your devices.

Charging the PowerCard: The PowerCard charges up to 3 times faster than standard USB chargers. It charges in approximately 3.5 hours via the USB port on your computer, or in about 2 hours from a USB AC power adapter. A short Micro USB charging cable is provided. You can check the battery level at any time by pressing the button on the side of the battery. Three blue LEDs along the PowerCard's curved edge indicate the battery level:

  • 3 Solid Blue LEDs: 100%
  • 2 Solid Blue LEDs: 50-80%
  • 1 Solid Blue LED: 10-50%
  • 1 Flashing LED: 0-10%

Connections: In addition to the Micro USB charging port, the PowerCard has a Type A USB port for connecting your mobile device. You should use the USB charging cable that came with your device.

Our Product Research Team

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Q & A

Customer Q&A

3 questions already asked

Yes, It's a rechargeable battery and comes with the USB cable for charging it. I hope that helps! My Bio: [ Ryan  Feb 19, 2016 ]  Staff
Yes, works fine. Charges quickly, probably good for one full charge and then some if at very low battery level. Nice small size. [ Brett  Jan 22, 2016 ]