Power Box 40


Power Box 40


The Power Box 40 is your mobile power source. It gives you the freedom to use one battery to power all your passions. To work hard and play harder. Power your tools at the construction site, and then take it on the water for a weekend fishing and camping in your kayak. Built for everything, in an easy to carry, waterproof case. The Powerbox 40 is the do everything, go anywhere, get it done battery. Your adventure awaits.

Built by hand to order. Please allow 7-10 days for delivery.

Availability: Order Today

  • 12V Car Plug
  • Water resistant and built for wet environments
  • 12V 10Ah battery included
  • DUAL USB CHARGING PORTS: Easy way to charge your phone, camera, or any personal electronics (2.1 A & 1 A). Charge two separate USB devices AND run your high-power load (motor, other) at the same time with external Dual USB Charging Add On. Monitor battery charge level in real time.

  • 12V CAR PLUG: Same type of socket that you have in your car.

  • BINDER POSTS: Used as 12v output and to charge your box. A versatile way to power many types of electronics, including fish finders, flashers, and small trolling motors.

  • 120V WALL PLUG: Same wall plug that you have in your home. Plug in and power most household electronics like lighting, a laptop, or even a small TV.

  • BATTERY GAUGE: Real time data on how much power is left, how much power is being used & the charge level as volts (V) or percentage (%).

  • 100% SAFE & RELIABLE: Battery is protected by a BMS that prevents overheating and extends life. Four 10 A fuses add a second layer of protection and safety. Built to last.

  • RUGGED WATERPROOF CASE: Shatterproof military spec case provides a lifetime of use in rugged & wet environments. The Powerbox 40 is fully waterproof and submersible when the box is closed with external plugs to power your trolling motor, laptop, or other electronics. Fully waterproof socket allows you to power your devices while keeping the battery safe and dry. Optimized for higher amp draw uses like trolling motors (<31lbs thrust only), sound systems, or larger electronics. Built for wet environments, fully watertight (IP67) when closed. Pressure valve to ensure waterproof when closed. Not water resistant when case is open.

  • POWERED BY DAKOTA LITHIUM: Powered by a Dakota Lithium 12V 40Ah battery. Built with our signature Lithium Iron Phosphate (LiFePO4) for high performance in extreme environments and ultra-long lifespan.

  • CHARGER INCLUDED: 12v LiFePo4 charger Included.

  • SOLAR PANEL ADD ON: One 20w solar panel will fully charge your powerbox in 7-9 hours. Two panels will charge it in 3-5 hours.

  • CAPACITY: 40 Amp Hours (Ah). Will recharge an Iphone 45+ times, a laptop 13+ times, or run a small refrigerator for 40+ hours.

  • EXTERNAL RING TERMINALS: Includes an adapter with ring terminals and SAE connector so that you can power multiple external devices at once.

  • OPERATING TEMPERATURE: Ideal for rugged & harsh environments. Much better than SLA or other lithium’s. -20’F min, +120’F max optimal environmental operating temps

Dimensions: 12 in x 10-1/2 in x 7-1/2 in.
Weight: 18 lbs.
Capacity: 40 Amp Hours (Ah)
Operating temperature: -20’F min, +120’F max
Discharge: 25 A max continuous, 50 A max 300 mS pulse. 10.0 V max discharge, 11.0 V max recommended discharge. For longest lifetime recommended discharge rate 1-20 Amps. Trolling motors <31lbs thrust only. The flat discharge voltage curve provides a 75% bigger capacity then a SLA 40Ah battery.
Battery lifaspan: Up to 80% capacity for 2,000 recharge cycles in recommended conditions plus lifetime technical support. Dakota Lithium batteries last so long that the price per use is a fraction of traditional batteries.
Best Uses
  • Everything – use one battery to power many things.
  • Emergency power source.
  • Mobile power source.
  • Home electronics.
  • Camping & hiking.
  • Kayaking & fishing.
  • Extreme environments.
  • Working remotely while off grid.
  • Power tools & construction sites.
  • Stereo, AV & music.
  • Small trolling motors(<31 lbs. thrust).
  • Ice fishing & winter sports.
  • Marine, boating & sailing.


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