Product Description
1,500 Amp UltraSafe Lithium Jump Starter
The GB50 is an ultra-portable, lightweight and compact lithium-ion jump starter for 12-volt batteries. With it, you can safely jump start a dead battery in seconds - up to 30 times on a single charge. The Boost XL is safe for anyone to use, featuring spark-proof technology, as well as reverse polarity protection. The GB50 lithium jump starter integrates with a high-output 200 lumen LED flashlight with seven light modes, holds its charge for up to one year and features a USB battery pack for recharging personal devices on the go - up to 6 smartphone recharges. Hot and Cold LED indicators of the internal battery determine when your Boost is outside operating temperatures to help protect your batteries and devices. It's rated at 1,500 Amps, and suitable for use on gasoline engines up to 7 liters and up to 4.5 liter diesel engines, such as a car, van, boat, SUV, truck and more. Included with the GB50, the new HD Precision Boost Battery Clamps easily connect to any 12V lead-acid battery from lawn mowers to trucks, USB charging cable, microfiber storage bag, our 1-year hassle-free limited warranty, and free lifetime customer support.
- Compact, yet powerful lithium jump starter rated at 1,500 amps up to 30 jump starts on a single charge.
- An ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allows it to safely connect to any battery.
- An ultra-bright 200 lumen LED flashlight with 7 light modes including SOS and emergency strobe.
- Recharge your personal devices on the go, like smartphones, tablets, e-watches and more - up to 6 smartphone recharges.
- Designed for gas engines up to 7 liters and diesel engines up to 4.5 liters for small diesel cars, SUVs, boats, trucks, ATVs, motorcycles and more.
- New Feature: Hot and Cold LED indicators of the internal battery operating temperatures to protect your batteries and devices.
- New Accessory: Includes HD Precision Boost Battery Clamps designed to easily connect to any 12V lead-acid battery from powersports to trucks.
Shipping & Returns
UK Mainland Delivery
We aim to dispatch all UK Mainland orders on the same or next working day. Delivery typically takes 1–2 working days, depending on the time your order is placed.
For special order items, we aim to dispatch within 4–5 working days. These items are clearly marked as “Special Order” within the product description.
Delivery Charges & Minimum Order
All prices shown on this page are exclusive of VAT.
We do not have a minimum order value; however, our minimum delivery charge includes packaging and handling costs and cannot be reduced.
Tracked Courier OptionsUK Mainland: £13.00 + VAT (TNT / FedEx / Transglobal Express) Some items qualify for Free Delivery where margin allows.
Economy Regions: Highlands & Islands of Scotland, Scilly Isles, Isle of Wight, and Northern Ireland.
Please add items to your basket and proceed to checkout for an exact delivery quote.
Channel Islands: Jersey, Guernsey, and the Isle of Man are treated as separate countries in our delivery system, ensuring zero VAT for the Channel Isles.
Courier Partners
We currently use DPD, DHL, TNT/FedEx, UPS and Transglobal Express for all UK and European shipments.
International orders are generally sent via DHL or DHL Express. Please contact us for a shipping quote — once approved, we’ll enable the relevant delivery option so you can complete your order online.
European Deliveries
We offer Economy and Express options from as little as £10 per 30kg.
To receive an accurate quote, please email us with your full delivery address and local contact number.
Customs & Import Duties
Customs duties and handling fees may be applied by local authorities in your country — these are outside our control. Please familiarise yourself with any applicable import charges before placing your order.
Some couriers may charge a small fee to handle customs clearance on your behalf. We cannot provide prices inclusive of duties or taxes, and the customer remains responsible for any local charges.
Please do not request that we under-declare or alter invoice values for customs paperwork — this is unlawful and may invalidate your shipment in the event of a claim.
Important Information
Once your parcel has been dispatched, it is in the hands of the courier. While most deliveries arrive promptly, transit times are estimates and not guaranteed due to factors such as road delays or courier backlogs.
All deliveries are tracked and require a signature on receipt, so please ensure someone is available at your chosen delivery address.


