Head-to-head · Best Portable Jump Starters

NOCO Boost HD GB70 vs NOCO Boost Plus GB40

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 Plus GB40 comes out ahead by a narrow margin (4.6 vs 4.7). The gap is mostly about everyday drivers of sedans, SUVs and small trucks who want a proven, glovebox-sized jump starter near $100 — read the strengths below before deciding.

Ranked #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 →

Higher ratedRanked #1 in Best Portable Jump Starters

NOCO Boost Plus GB40

4.7

$99.95as of Jun 7

The Boost Plus GB40 is the default recommendation for most drivers: 1000A is plenty for the engines in the average driveway, the price stays near $100, and NOCO's safety engineering is the most proven in the category. Step up to the GB70 or GBX55 only if you run a large diesel or want USB-C fast charging.

Strengths

— 1000A peak output starts virtually any passenger car, SUV or light truck (up to 6.0L gas / 3.0L diesel)
— Tiny 8-inch, 2.4 lb body fits a glovebox yet holds roughly 20 jumps per charge
— UltraSafe spark-proof clamps with reverse-polarity protection prevent the classic jump-start mishaps

Watch-outs

— Underpowered for large V8 diesels and big trucks that need the GB70 or GBX55
— Slow micro-USB recharge with no USB-C input on this generation
— Lithium cells need topping up every few months in storage to stay jump-ready

$99.95 · 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 Plus GB40

The most compact and affordable pick here. It is outpowered by the 2000A NOCO Boost HD GB70, the 1750A USB-C NOCO Boost X GBX55, and the 4000A WOLFBOX MegaVolt24, but it costs less than all of them and covers the engines most drivers actually own. Only the GOOLOO GP2000 undercuts it on price.

Specs side-by-side

Spec	NOCO Boost HD GB70	NOCO Boost Plus GB40
Peak Amps	2000A	1000A
Engine Capacity	8.0L gas / 6.0L diesel	6.0L gas / 3.0L diesel
Battery	UltraSafe lithium-ion	UltraSafe lithium-ion
USB Output	USB-A 2.1A	USB-A 2.1A
Weight	5.0 lb	2.4 lb
Jumps Per Charge	Up to 40	~20
Flashlight	400 lumens, 7 modes	7-mode LED
Warranty	1-year	1-year

← See the full ranking of best portable jump starters