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Jumpr Stack 3 3200 mAh Power Bank
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Jumpr™ Stack 3
3200 mAh Stackable Portable Power Bank
$39.99 Add to cart


The EnerPlex Jumpr Stack 3 is a 3,200 mAh portable battery that can directly charge smartphones digital cameras, and more via it’s tethered Micro-USB and Lighting connector outputs. Pair two or more Jumpr Stacks together and you can charge the batteries simultaneously via its magnetic stack and charge functionality.

  • Can charge smartphones and other small USB-enabled devices
  • Tethered Micro-USB and Lighting Connector Outputs
  • Charge multiple Jumpr Stacks simultaneously via innovative magnetic stack and charge capabilities
  • Chain your Stacks vertically together to charge larger, power-hungry devices
  • Recipient of 2015 Red Dot Product Design Award

Product Dimensions:
Additional Information:
User manuals, data sheets, and other supporting documents can be found in the 'Downloads and Support Tab'
Battery Capacity:
3,200 mAh
Battery Type:
Recharge By:
0.4-2A Micro USB or Stack, Charge, & Chain Port
USB Port/Tethered Micro-USB/Tethered Lightning
Power Output:
1 Year
EnerPlex Jumpr Stack 3 is rated 1.6 out of 5 by 5.
Rated 1 out of 5 by from Junk Cannot even use this thing. Had it on the charger over night and the LED never stopped blinking. It just does not work
Date published: 2016-06-19
Rated 1 out of 5 by from Broken input I paid a lot of money for this product compared to similar products on the market at the time. Just over a year later the power input socket has broken off. Opening the body of the case, I can see it is really flimsy and lightly anchored. I guess it's scrap because to get it repaired will cost twice as much as a new device! In any event, it is likely to break again.
Date published: 2016-11-05
Rated 4 out of 5 by from Charges quickly I have read the negative reviews and do not understand their issues. Honestly, my jumper charges my Iphone7 faster than a wall charger. It charges itself quickly, and I really like the convenience of the stacking option. I have two and feel comfortable that in the event I need a charge it will perform. For the person who says it blinks constantly...I would recommend that you make sure that the unit is turn off.
Date published: 2017-03-17
Rated 1 out of 5 by from DO NOT BUY THIS PRODUCT I recently bought two of these. Both charged just once and stopped working. I wish I had read all the negative reviews first. Two products that stop performing at the same time means this is garbage. Do not waste your money.
Date published: 2017-02-25
Rated 1 out of 5 by from Very very poor I didnt realise that this would only ever charge my phone once, my first one did just that, took it back to shop where it was exchanged and 2nd one done the same. avoid at all costs
Date published: 2017-03-15
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Does this product auto shut off

Asked by: Allen
If the battery is not actively being charged or giving a charge, yes, the unit will turn off.
Answered by: EnerPlex Support
Date published: 2016-10-04

Can the Lightning and micro usb both output 5V 1A at the same time?

Asked by: Blue pug poo
Yes. Using both tethers simultaneously, you can get up to 1A on the lightning and 1.5A on the micro USB.
Answered by: EnerPlex Support
Date published: 2016-10-04

Our company is interested in bulk purchase (around 700 pcs) the EnerPlex Jumpr Stack 3 (Power Stack Duo) Can you please give me the quotation via my email address

Asked by: Woodstock
For sales inquires, please contact
Answered by: EnerPlex Support
Date published: 2016-10-04

No matter how long I charge the Jumpr 9 the fourth LED won't light.

Asked by: Pdub
I would suggest using the unit until the battery is depleted completely, and then recharging it again. If you have further problems, please reach out to us at
Answered by: EnerPlex Support
Date published: 2016-10-28

I have a jumpstack3. I lost the charger cable. How can I replace it?

Asked by: Frank
The cable used to charge our Jumpr series is a simple USB to micro USB cable available for purchase in electronics and department stores.
Answered by: EnerPlex
Date published: 2016-05-10

What is the weight in grams of the jumper stack models?

Asked by: Tkreagan
The Jumpr Stack 3, 6, and 9 are 120g, 180g, 230g, respectively.
Answered by: EnerPlex
Date published: 2016-05-10

How are you supposed to charge the J Stack 3? It only came with a USB regular outlet. I plugged it in to my laptop docking station USB port...seems to be charging. I can presumably use ANY USB to plug converter? How long to fully charge?

Asked by: Denver D
The Jumpr Stack 3 can be charged using any USB power source! For example, a computer's USB port, a USB wall adapter, another battery, one of our Generatrs, etc. The length of time it takes to charge your Jumpr will depend on the power source and the state of the battery. You can find more information here:
Answered by: EnerPlex
Date published: 2015-11-21

Can it charge a tablet? If so, how many times?

Asked by: MrPink
This may be able to charge some tablets and may only work if the tablet is powered off. The percent of charge your tablet will receive depends on the size of your tablet's battery. The Jumpr Stack 3 is a 3200mAh battery.
Answered by: EnerPlex
Date published: 2015-08-17
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