Power Stacker: Stackable Battery System

Power Stacker is a portable, modular, and configurable USB rechargeable lithium-ion battery pack system.

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Power Stacker does what other USB rechargeable batteries have failed to do, and that's the ability to combine together for increased battery capacity or separate in to many small batteries for smaller projects. You can literally use the same Power Stacker battery pack cells for many years across many different applications!

Did you purchase a battery that was too big and takes too long to recharge? Power Stacker connectors allow you to disconnect excess cells from the pack and use the removed cells for another purpose.

Another unique feature of Power Stacker is that each battery receives its own charge controller, which guarantees true cell balancing and makes sure that each battery is charged to the right voltage in real-time even while charging and/or discharging.

Power Stacker Specs:  

* Time to Fully Charge: @5 Watts 3350mAh: 3 hours | @8 Watts 13400mAh: 7 hours

* Capacity: 3350mAh, 6700mAh, or 13400mAh / 3.6V

* Type: Panasonic NCR18650B Lithium-Ion

* Input - Current: 450 to 2600mA | Voltage: 5 to 6 Volts

* Number of USB Ports: Depending on the number of 5V adapter modules

* Output - Current: Up to 2000mA | Voltage: 3.6 Volts direct or 5 Volts with DC-DC converter module

* Battery Life Under Typical Use: 5-10years 

* Replaceable Battery

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  • 1 × Lithium-Ion Charge Controller Circuit (Schematic, Gerber Files, etc. can be downloaded)
  • 1 × NCR18650B 3350mAh Unprotected Panasonic Lithium Ion Battery (If lower cost is necessary, try the Panasonic NCR18650
  • 2 × Hirose 2-pin connector DF3-2S-2C
  • 2 × Hirose Socket 24-28 AWG Crimp Pin DF3-2428SCC
  • 1 × 1" Wide Kapton Tape Roll

View all 14 components

View project log

  • 1
    For a single cell setup

    Simply connect the charge controller board, battery, and 5 Volt DC-DC converter.

  • 2
    For a multi-cell setup

    Simply connect the charge controller boards and batteries in to the case, and then connect the 5 Volt DC-DC converter.

  • 3
    Charge your devices!

    Plug in your tablet, DIY project, or smart phone and start charging!

View all 4 instructions

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