Dakota Lithium Powerbox+ 135 Waterproof Portable Power Station (12V 135Ah, 2000W Inverter)

Description

The Dakota Lithium Powerbox+ 135 is a rugged waterproof portable power station built for extreme environments, remote expeditions, and off-grid adventures. Built around the DL+ 12V 135Ah dual-purpose lithium battery, it delivers powerful engine-starting capability and reliable deep-cycle energy inside a fully submersible IP67 military-grade case.

Designed for anglers, overlanders, and off-grid explorers, the Powerbox+ 135 can jump-start engines, power trolling motors, and run electronics anywhere — rain, snow, or rough water. With integrated inverter power, waterproof ports, and internal heating technology, it delivers dependable lithium energy wherever the grid ends.

Best for
• Marine expeditions and offshore boating
• Kayak fishing and trolling motors
• Overlanding and remote camping
• Emergency power and jump-starting vehicles
• Charging electronics, tools, cameras, and portable gear

Features

• Dual-Purpose Starting & Deep Cycle Power
  Delivers 1,000 cold cranking amps (CCA) for reliable engine starts while also providing 135Ah of deep-cycle capacity to power trolling motors, electronics, and onboard systems.
• Waterproof & Submersible Powerbox+ Case
  IP67-rated military-grade case protects internal components from water, dust, and impact while allowing the system to float during marine use.
• Integrated 2000W Inverter Power
  Built-in inverter delivers 2,000W continuous and 4,000W peak AC power with outlets for running tools, appliances, and charging electronics.
• Waterproof Binder Posts for High-Power Connections
  Automotive-grade posts allow secure connections for trolling motors, jumper cables, and other high-amp devices while maintaining a sealed waterproof system.
• Built-In Even-Heat Technology
  Integrated heating system enables charging and operation in temperatures as low as –4°F (–20°C), ensuring reliable performance in extreme conditions.
• Field-Serviceable Expedition Design
  Removable electronics tray and internal storage compartments allow maintenance, organization, and reliable operation during long off-grid trips.
• Long Lithium Battery Lifespan
  LiFePO4 battery chemistry provides up to 5,000 recharge cycles, delivering significantly longer service life than traditional lead-acid batteries.

Specification

Official Specification Sheet (PDF)

Warranty
11 Year Manufacturer Warranty

Battery Type
Dakota Lithium DL+ 12V 135Ah Dual Purpose LiFePO4 Battery

Storage Capacity
135 ampere hours (Ah). Dakota Lithium batteries provide consistent power throughout the entire discharge cycle.

Voltage
12.8 volts (V)

Energy
1,620 watt-hours (Wh)

Cycle Life
Up to 5,000 cycles under recommended operating conditions.

Terminals / Ports
Waterproof binder posts, AC outlets,
USB-C PD charging ports, and USB charging ports.

Size
11.6” L × 12.1” W × 12.8” H
(295mm × 307mm × 325mm)

Weight
42.92 lbs (19.47 kg)

Operating Temperature
-4°F to 158°F (-20°C to 70°C).
Internal heating technology supports cold-weather charging.

Discharge
135A max continuous discharge, up to 1,000A pulse for engine starting.

Charging
14.4V recommended, 15V max. Includes a 12V 10A LiFePO4 charger.

Includes Active BMS Protection
Battery management system providing cell balancing, over-charge protection, over-discharge protection, short-circuit protection, and temperature protection.

Certifications
UN38.3, UL1642, and IEC62133 certified.

What's Included

• DL+ 12V 135Ah Dual Purpose Lithium Battery
• 2000W Continuous / 4000W Peak Pure Sine Wave Inverter
• Powerbox+ 135 Waterproof IP67 Case
• Waterproof Voltmeter & External USB Charging Ports
• Automotive-Grade Binder Posts & Jumper Cable Connections
• Removable Anti-Static Electronics Tray
• Ballistic Nylon Internal Storage Compartments
• 12V 10A LiFePO4 Battery Charger
• Jumper Cables