Head-to-head · Best Portable Jump Starters

NOCO Boost HD GB70 vs NOCO Boost X GBX55

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

NOCO Boost HD GB70 comes out ahead by a narrow margin (4.6 vs 4.5). The gap is mostly about owners of large gas trucks, V8s and diesel engines who want maximum cranking reserve and rugged cables — read the strengths below before deciding.

Higher ratedRanked #1 in Best Portable Jump Starters

NOCO Boost HD GB70

4.6

$199.95as of Jul 7

The Boost HD GB70 is the pick for big-engine and diesel owners. 2000A reliably cranks 8.0L gas and 6.0L diesel motors, the 40-jump reserve means you can forget about it for months, and the rugged cables shrug off shop and trail abuse. The trade-offs are weight, bulk and a dated micro-USB charging port.

Strengths

— 2000A peak output covers 8.0L gas and 6.0L diesel engines, including big trucks and SUVs
— Up to 40 jumps per charge so it rarely needs a top-up in the trunk
— 400-lumen flashlight with seven modes including SOS and strobe

Watch-outs

— Heavy at roughly 5 lb and physically larger than the GB40 or GBX55
— No USB-C input or output, so recharging is slower than the GBX55
— At around $230 it is double the price of the GB40

$199.95 · Check Price on Amazon Full review →

Ranked #3 in Best Portable Jump Starters

NOCO Boost X GBX55

4.5

$169.43as of Jul 7

The Boost X GBX55 is NOCO's USB-C generation: 1750A handles most large gas and mid-size diesel engines, and the 60W USB-C port makes it the most charging-versatile NOCO unit here, topping off laptops and reaching jump-ready in five minutes. It is the pick for road-trippers who value fast recharge and device power over raw peak amps.

Strengths

— 1750A peak starts up to 7.5L gas and 5.0L diesel engines
— 60W USB-C Power Delivery charges in and out, and reaches jump-ready in five minutes of charge
— Full recharge in just 1.2 hours, far faster than micro-USB NOCO units

Watch-outs

— Mixed user reports of battery longevity and a few early failures
— Costs about the same as the more powerful WOLFBOX MegaVolt24
— Clamp cable length is on the shorter side for some engine bays

$169.43 · Check Price on Amazon Full review →

How they stack up

NOCO Boost HD GB70

The big-engine specialist.

NOCO Boost X GBX55

The charging-versatility pick.

Specs side-by-side

Spec	NOCO Boost HD GB70	NOCO Boost X GBX55
Peak Amps	2000A	1750A
Engine Capacity	8.0L gas / 6.0L diesel	7.5L gas / 5.0L diesel
Battery Type	UltraSafe lithium-ion	UltraSafe lithium-ion
USB Output	USB-A 2.1A	60W USB-C PD (in/out)
Weight	5.0 lb	3.37 lb
Voltage	12 volts	12 volts
Flashlight	400 lumens, 7 modes	Integrated LED

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