Jump Starters
NOCO Boost HD GB70 review
The smallest pack with genuine margin on a cold diesel — and 2.2 lb of dead weight if your engine is a commuter four.
Disclosure: we earn a commission if you buy through the Amazon links on this page, at no extra cost to you. Commission never decides a verdict or a ranking position — read our editorial policy and affiliate disclosure.
How we assessed these: this assessment is built from NOCO's published specifications, the current retailer listing and published owner feedback. We have not bench-tested this unit, and we do not publish test figures we did not measure.
Short answer
Buy the GB70 if you drive a diesel up to 6.0 liters or a gas engine up to 8.0 liters, or if you want cold-weather margin on a 5.3 L V8. Skip it if your engine is a four-cylinder commuter — you would carry 4.18 lb to solve a 2.45 lb problem.
The GB70 is the pack that makes a diesel pickup a solved problem. At 2,000 peak amps with a published 6.0-liter diesel rating, it covers the 3.0 L and 6.7 L light-truck diesels that most consumer packs cannot legitimately claim — and it does it while still sitting under the airline carry-on threshold, which is unusual at this capacity.
What NOCO publishes
| Specification | Figure |
|---|---|
| Starting current | 2,000 A peak |
| Internal battery | 56 Wh lithium-ion |
| Gas engine rating | Up to 8.0 liters |
| Diesel engine rating | Up to 6.0 liters |
| Weight | 4.18 lb (1.9 kg) |
| Recharge | 3 hours at 12 V / 3 A fast charge |
| Accessory output | 12 V, 15 A |
| Water resistance | IP65 |
| Flashlight | 400 lumens |
| Warranty | 1-year hassle-free |
All figures from NOCO's GB70 specification page.
The diesel rating is the point
Diesel ratings across this range run at roughly half the gas rating for the same pack, because a diesel ignites by compression and its starter turns the engine against much higher resistance — plus glow plugs or a grid heater draw current before the starter engages at all. The GB70's 6.0 L diesel figure is what puts a 6.7 L Power Stroke or Duramax genuinely within reach rather than optimistically near it.
For context: the GB40 is rated to 3.0 L diesel and the GB50 to 4.5 L. Neither is a serious answer for a full-size diesel pickup. The diesel roundup sets the whole range out.
Two features that matter more than the spec sheet suggests
The 12 V, 15 A accessory output. That is enough to run a 12 V tire inflator directly from the pack, which turns one tool into a partial answer to two problems without the compromises of a combo unit. It is also enough for a 12 V air pump or a work light.
The 400-lumen flashlight. Four times the GB40's output. That sounds like a throwaway spec until you are trying to find a battery terminal behind a fender liner in the dark, which is most of what roadside diesel work actually involves.
The 12 V / 3 A fast-charge input is the third: three hours to recharge a 56 Wh pack is genuinely quick, and it means you can bring it back up from the vehicle's own socket on a long drive rather than waiting for a wall outlet.
When it is the wrong pack
A four-cylinder or V6 car. The GB40 covers that with margin at 2.45 lb. The GB70's extra 1.7 lb buys you headroom your engine will never draw, permanently, in your trunk.
A commercial diesel above 7.0 liters. That is past the GB150's rating, let alone the GB70's, and we will not recommend a consumer pack beyond its published range.
A daily carry item. At 4.18 lb this is a trunk pack, not a door-pocket pack. If you want something to live in a bag, the GBX45 at 2.16 lb is the design point for that.
Verdict
1. Best for diesel and big V8
NOCO Boost HD GB70
NOCO · Best for diesel pickups and big v8s
The one to buy if you drive a diesel: 2,000 peak amps, a 6.0-liter diesel rating and 56 watt-hours, which is the smallest pack with real margin on a cold diesel.
Published specifications
What works
- The 6.0 L diesel rating covers the common 3.0 L and 6.7 L light-truck diesels with margin
- 56 Wh is still comfortably under the 100 Wh carry-on threshold, so it flies as hand luggage
- 12 V 15 A accessory output, and a 400-lumen light that is genuinely usable roadside
- 12 V / 3 A fast charge brings it back in about three hours
What does not
- 4.18 lb — noticeably heavier than the compact packs, and it wants a dedicated spot
- Overkill for a commuter four-cylinder; you are paying for headroom you will not use
Skip it if
Not the one to buy if you only ever start a four-cylinder commuter. Buy diesel headroom when you have a diesel.
#ad Affiliate link · Price as of November 10, 2026
Raw specifications: NOCO’s own page for the NOCO Boost HD GB70.
If the GB70 is close but not quite the pack you want — more headroom, less weight, a compressor in the same case, or a smaller outlay — NOCO GB70 alternatives sets out what to buy instead and what each substitution actually costs you on published figures.
Key takeaways
- 2,000 peak amps, 56 Wh, 4.18 lb, 6.0 L diesel rating — NOCO's published figures.
- The diesel rating is the reason to buy it; read that column, not the gas one.
- 56 Wh is still under the 100 Wh carry-on limit, so it can fly.
- The 12 V 15 A output will run a tire inflator directly from the pack.
- Overkill, and 1.7 lb heavier than necessary, for a four-cylinder car.
How we sourced this
Every figure on this page came from one of the following. Where a manufacturer or regulator does not publish a number, we say so rather than estimate it.
Common questions
- Will a NOCO GB70 start a 6.7 L diesel?
- Yes — NOCO publishes a diesel rating of up to 6.0 liters for the GB70, and it is the pack the range positions for full-size diesel pickups. Let the glow plugs or grid heater finish their cycle before cranking, because that pre-heat draw is significant on a cold start.
- Can you fly with a NOCO GB70?
- Yes, in carry-on baggage. At 56 Wh it is comfortably under the FAA's 100 Wh threshold for lithium-ion batteries, so no airline approval is required. It must not go in checked baggage, and the terminals need protecting against short circuit.
- Is the GB70 overkill for a car?
- For a four-cylinder or V6 passenger car, yes. The GB40 is rated to 6.0 L gas, weighs 1.7 lb less, and costs less. The GB70 earns its weight on a diesel, on a large gas V8, or where you specifically want cold-weather margin.
- How long does the GB70 take to recharge?
- NOCO specifies three hours using the 12 V, 3 A fast-charge input. That is quick for a 56 Wh pack, and it means you can bring it back up from the vehicle's own 12 V socket while driving rather than needing a wall outlet.
More in Jump Starters
A jump pack is the one trunk tool that turns a tow truck into a five-minute inconvenience. This is how to size one, and which ones are worth the space.
Read next
Best GB70 alternative
GB70 Alternatives
What the GB70 is known for, from NOCO's own specification sheet — then five alternatives that each beat it on one specific, stated thing.
Best for Diesel Trucks
For Diesel Trucks
Packs with a published diesel rating that actually covers a 3.0 L to 6.7 L light-truck engine, with margin for a cold morning.
Head to head
GB40 vs GB70
The head-to-head most buyers actually face. Published specs side by side, and a clear rule for which side of the line you are on.
Best for Cold Weather
For Cold Weather
Winter picks with real margin, plus the one situation where a lead-acid box beats lithium and why lithium usually still wins.
Guide
Peak vs Cranking Amps
Peak amps is momentary and loosely defined; cranking amps is sustained. Why manufacturers publish engine ratings instead, and what to compare.
Found something out of date, or a figure you can source better than we did? Tell us — corrections get read first. Our methodology explains how picks are made, and contact is one click away.