Can i charge a noco boost x gbx155 jump starter with a noco xgc4 56-watt xgc power adapter?

I own both the NOCO GBX155 jump starter, as well as the XGC4 56 watt fast charge power adapter. I can absolutely confirm that this 56 watt power adapter is not compatible with the GBX155. The charger does not have the proper connection. I confirmed with NOCO that the 2 devices are not compatible. It is absolutely inexcusable that NOCO does not have a method of fast charging the GBX155 using ordinary house current. The output of the XGC4 56 watt device is a male cylindrical output (precise size unknown to me), and the input of the GBX155 is a USB-C, I believe. I don't know if some sort of adapter is available, and if it is, if there is some sort of other electrical incompatibility issue that might exist. I think that the mfg. says that the included USB cable is not suitable for fast charging- I think maybe a special higher capacity USB cable needs to be purchased, but I am not sure on this point. Using the included cable, plus an Iphone charger (I think a 12 watt - output = 5 volts at 2400 mA), a full charge (solid, unblinking green light) takes a little over 16 hours when being charged for the first time. The GBX155 did arrive with a partial 2 yellow light charge, so it may take longer to charge when almost completely drained. I think it may be able to be fast charged using the included car cigarette lighter adapter, but I am not sure of this point. You would probably need to do this while the car engine is running (i.e. on a long trip) so that the car battery was not excessively drained. But I am not sure of this point. As of now 12/30/21, (had for 1 day), I have not actually used this for anything, so I can't report on its functionality. I plan on using it for dead car batteries, and perhaps dead cell phone batteries (in an emergency situation etc) Once again, it is absolutely inexcusable that NOCO does not have available a method to fast charge this battery booster. It is even worse that Amazon still has these 2 items- GBX155 and XGC4, listed as 'Being frequently bought together'. They are definitely not compatible. I was foolishly misled by this, as apparently were other Amazon customers. SHAME on both Amazon and NOCO! The GBX155 does appear to be of excellent quality, and well made.

What is the Mah rating on this device?

The user manual rates it at 99 watt hours and it supports a variable output voltage of between 5 and 20 watts. So, running at 5 volts, your mAH would be 99Wh / 5V = 19.8 Ah * 1000 = 19,800 mAH. At 12 volts, you would have 99 / 12 * 1000 = 8,250 mAH. At 20 volts, 99 / 20 * 1000 = 4,950 mAH. From what I've seen, USB power banks usually use the 5V standard for calculating mAH, so for comparison purposes, this is probably the one you'll want to use. Hope this helps!

What is the correct Noco email for customer support?

support@no.co (That is indeed supposed to read ".co", NOT ".com")

The boost led does not come on after i plugged it into the battery? any help would be appreciated it

Does any other lights flash? I had a short in the alternator and would cause the exclamation icon next to the battery gauge to flash and the boost LED would not come on.

Desertcart Logo

Deliver to Seychelles

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

⚡ Power up your peace of mind—jump, charge, and shine anywhere!

ULTRA SAFE 2 0 TECH - Advanced spark-proof & reverse polarity protection with thermal management for worry-free use.
POWER BANK ON DEMAND - 60W USB-C PD charges your phone, tablet, or laptop—stay connected anywhere.
BUILT FOR THE UNEXPECTED - 500-lumen LED with 7 modes including SOS & strobe—your ultimate roadside companion.
TURBO RECHARGE IN A FLASH - USB-C PD recharges fully in 2.7 hours or gains jump-ready power in just 5 minutes.
EXTREME POWER ZERO COMPROMISE - 4250 amps to jump gas engines up to 10.0L & diesel up to 8.0L—never get stranded again.

The NOCOBoost X GBX155 is a cutting-edge 4250A lithium jump starter designed for 12V systems, capable of jump-starting large gas (up to 10.0L) and diesel (up to 8.0L) engines. Featuring ultra-safe spark-proof and reverse polarity protection, it recharges rapidly via USB-C Power Delivery in 2.7 hours and doubles as a 60W portable power bank. Its integrated 500-lumen LED flashlight with multiple modes ensures visibility in emergencies, making it an essential, reliable tool for professionals and adventurers alike.

Specifications

Brand	NOCO
Product Dimensions	8.18"D x 4.84"W x 13.51"H
Item Weight	7.01 Pounds
Amperage	4250 Amps
Peak Output Current	4250 Amps
Specification Met	energy
Manufacturer	NOCO
UPC	046221200096
Global Trade Identification Number	00046221200096
Automotive Fit Type	Universal Fit
Model	GBX155
Item Weight	7.01 pounds
Item model number	GBX155
Batteries	1 Lithium Ion batteries required.
Exterior	Machined
Manufacturer Part Number	GBX155
OEM Part Number	GBX155
Position	Unknown
Bulb Type	LED
Special Features	4250A 12V Portable Lithium Car Battery Jump Starter Power Pack, 500 Lumen LED Flashlight with Multiple Modes, including SOS., 60-Watt USB-C Power Delivery Technology, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.