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 #2 in Best Portable Jump Starters

NOCO Boost HD GB70

4.6

$199.95as of Jun 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 #4 in Best Portable Jump Starters

NOCO Boost X GBX55

4.5

$166.2as of Jun 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

$166.2 · Check Price on Amazon Full review →

How they stack up

NOCO Boost HD GB70

The big-engine specialist. It doubles the 1000A NOCO Boost Plus GB40 on cranking reserve and matches the on-paper peak of the GOOLOO GP2000 while far exceeding its reliability, and it outlasts the 1750A NOCO Boost X GBX55 on jumps per charge, though the GBX55 charges faster over USB-C and the WOLFBOX MegaVolt24 still beats it on raw 4000A peak.

NOCO Boost X GBX55

The charging-versatility pick. Its 60W USB-C recharge and device-power output beat the micro-USB NOCO Boost Plus GB40 and NOCO Boost HD GB70, and match the WOLFBOX MegaVolt24, while its 1750A peak sits between the GB40 and GB70 and above the GOOLOO GP2000 on engine range.

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	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
Jumps Per Charge	Up to 40	—
Flashlight	400 lumens, 7 modes	Integrated LED
Warranty	1-year	1-year
Recharge Time	—	1.2 hours

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