Noco
NOCO GB251+ 12V 3000A Boost Max Jump Starter Portable UltraSafe Lithium
NOCO GB251+ 12V 3000A Boost Max Jump Starter Portable UltraSafe Lithium
Get it between October 26 and October 28.
Low in stock
✓ Used by Hundreds of Customers
✓ Trusted by Sailors Nationwide
✓ Expert Customer Service
✓ Bulk Pricing Available
At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
NOCO GB251+ 12V 3000A Boost Max Jump Starter Portable UltraSafe Lithium
The NOCO GB251+ is a powerful 3000A portable lithium jump starter designed for gasoline and diesel engines up to 32 liters. Built for demanding applications, it can support vehicles and equipment ranging from semi-trucks and motorhomes to buses, agricultural, construction, mining, and vocational equipment.
Despite its lightweight design, the GB251+ delivers higher cranking performance than similarly sized lead-acid jump starters. Its rugged, portable construction makes it a dependable emergency power solution for professional and heavy-duty applications.
Features
- 3000A peak current
- 12V lithium jump starter
- Designed for gasoline and diesel engines up to 32L
- Suitable for 6-, 8-, 12-, and 16-cylinder engines
- Supports semi-trucks up to Class 8
- Suitable for motorhomes, coaches, and buses
- Designed for mining, agricultural, construction, and vocational equipment
- Lightweight lithium construction
- Higher cranking performance than similarly sized lead-acid jump starters
- 137Wh internal battery capacity
- Integrated digital voltmeter
- 600-lumen flashlight
- Dual USB Type-A ports
- 12V 15A power port
- Worldwide AC charging compatibility
Digital Voltmeter & Timer
The integrated digital voltmeter automatically illuminates when connected to a battery, allowing users to monitor battery voltage. It also functions as a 60-second countdown timer for convenient jump-starting procedures.
Flashlight & Power Outputs
- Flashlight: Up to 600 lumens
- 2 x USB Type-A ports
- USB output: Up to 2.1A
- 12V power port
- 12V power output: 15A
- 137Wh battery capacity
Charging
The GB251+ includes a 4A AC power adapter designed to recharge the jump starter in approximately 8.5 hours.
The detachable AC cord includes multiple plug types for international use:
- Type-A — North America
- Type-G — United Kingdom
- Type-I — Australia
- Type-C — European Union
Applications
The GB251+ is designed for a wide range of heavy-duty vehicles and equipment, including:
- Semi-trucks up to Class 8
- Motorhomes
- Coaches
- Buses
- Mining equipment
- Agricultural equipment
- Construction equipment
- Vocational equipment
- Large gasoline engines
- Large diesel engines
Specifications
| Specification | Details |
|---|---|
| Model | GB251+ |
| Brand | NOCO |
| Voltage | 12V |
| Peak Current | 3000A |
| Engine Capacity | Up to 32L gasoline and diesel |
| Battery Capacity | 137Wh |
| Flashlight | Up to 600 lumens |
| USB Ports | 2 x USB Type-A |
| USB Output | Up to 2.1A |
| 12V Power Port | 15A |
| AC Adapter | 4A |
| Recharge Time | Approximately 8.5 hours |
| Voltmeter | Integrated |
| Countdown Timer | 60 seconds |
| Plug Types | Type-A, Type-G, Type-I, Type-C |
Important Information
- Verify engine compatibility and required starting specifications before use.
- Allow the unit to recharge fully according to the manufacturer's instructions.
- Follow the manufacturer's safety, charging, connection, and jump-starting procedures.
- Inspect cables, connectors, and the jump starter for damage before use.
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
- Free Shipping – Enjoy free delivery on most orders across the lower 48 U.S. states.
- 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
- Exclusive Packages & Volume Discounts – Customized solutions available for clinics, wellness centers, and large orders.
- Authorized Dealer – Every order is protected with full manufacturer support and warranties.
At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
- Choosing a selection results in a full page refresh.
- Opens in a new window.