Boost Max 20000A 12V/24V Lithium Jump Starter | GB500

£1,549.95 + VAT

Safely jump start a dead battery in seconds.

Designed for most vehicles, including ATVs, lawn, mowers, motorcycles, cars, trucks, boats, RVs, tractors, equipment and more. The new, more powerful models are for diesel and high-displacement engines but are still safe on engines of all sizes.


Build Your System

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Ultra-safe, compact, and portable lithium-ion jump starter for both 12V and 24V battery systems. Features patented spark-proof technology and reverse polarity protection. Built for gas and diesel engines in Class 8+/CE high displacement vehicles, equipment, trucks, and more. Safe for engines of all sizes. Provides remote power for 12V devices (e.g. tire pumps) and recharges mobile devices, like smartphones, tablets, and more.


  • Boost Max is designed for standard vehicle applications such as cars, trucks, SUVs, motorcycles, ATVs, UTVs, lawn, garden & more.
  • It is powerful enough to start diesel engines that require more power
  • There are very few applications Boost Max won’t start, even in extreme cold.
  • The built-in voltmeter will automatically display the voltage of any connected battery.
  • 2 x USB out connections for charging smart devices on the go.
  • 12V “IN” allows recharging of the internal battery at over 3A, going from a dead battery to jump-starting in 15 mins.
  • 12 “IN” & 12V “OUT” connections will provide up to 20A of power to any standard 12V device.
  • Protects against reverse polarity, sparks, over-charging, over-current, open-circuits, and over-heating.
  • Switchable 12V and 24V modes, designed for high-displacement engines, covering most applications.
  • The built-in voltmeter displays the voltage of the vehicle’s battery for enhanced diagnostics and troubleshooting.
  • 2200 lumen ultra-bright LED work light for extreme visibility.b7 light modes, including SOS and emergency strobe.


  • Model No: NC-GB500
  • Voltage: 12V / 24V
  • Peak amp rating: 20 000A / 10 000A
  • Actual power output: 80 000 joules(3s) / 40 000 joules (3s)
  • Petrol engine rating: 10L Petrol
  • Diesel engine rating: 10L Diesel