Both are excellent: GB70 for heavy-duty power, GB40 for compact daily use.
I remember a cold night when my truck wouldn't start and my compact car sat fine — that split showed me why the noco jump starter gb70 vs gb40 debate matters. I’ve used both units on cars, trucks, and a few stranded friends. The noco jump starter gb70 vs gb40 each solve dead-battery panic, but one is bulkier and stronger and the other is lighter and handier. I’ve tested both and will share clear, practical differences so you can pick the right one for your needs.
NOCO Boost GB70: 2000A UltraSafe…
START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of peak lithium power. Up to 40 starts per charge on engines up to…
NOCO Boost GB40: 1000A UltraSafe…
START DEAD BATTERIES — Instantly start dead batteries with 1000 amps of peak lithium power. Up to 20 starts per charge on engines up to…
Is noco jump starter gb70 Good?
Yes — the noco jump starter gb70 is a clear yes for heavier engines and frequent use. It is built for larger gas and diesel engines. I found it reliable on a 6.2L truck and a mid-size SUV. It has the muscle to restart big engines and do so repeatedly on long trips. If you drive a truck, tow, or want a unit that lasts through multiple jump attempts, GB70 is the tool I reach for. The verdict: yes for heavy-duty users and anyone who wants peace of mind.
Once, after a weekend drive in freezing weather, my friend’s diesel wouldn’t turn over. I grabbed the GB70 from my trunk and had it running in seconds. Another time, I used the GB70 to jump a stalled boat engine at a marina — the extra cranking power mattered. Those moments taught me the GB70 is not just a big box — it’s reliable when you need real power. I keep it in my truck for long trips.
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 8.0L Gas and 6.0L Diesel Engines
What Makes It Stand Out / Key Features
- 2000A peak current for up to 8.0L gas and 6.0L diesel engines
- Built-in ultra-safe clamps with spark-proof tech and reverse polarity protection
- High-capacity lithium battery that can jump many times on a single charge
- LED flashlight with multiple modes for roadside use
- USB ports to charge phones and devices while on the road
What I Like
- Instant confidence with large cranking power when I need it
- Solid build that feels durable in a truck bed
- Clamps are easy to attach and well-insulated
- Battery holds charge well after weeks in storage
- Multi-function flashlight is actually useful at night
What Could Be Better
- Heavier and bulkier than the GB40 — less pocketable
- Higher price point versus smaller models
- May be overkill for small cars that never need deep cranking power
My Recommendation
If you drive a truck, tow, or want a go-to unit for long trips, choose the GB70 for raw power and reliability.| Best For | Why |
|---|---|
| Truck & Diesel Owners | High peak amps handle larger engines easily |
| Frequent Travelers | Long battery life and repeat jump capability |
Is noco jump starter gb40 Good?
Yes — the noco jump starter gb40 is a strong yes for compact cars and everyday carry. It is compact and light. I used the GB40 for years as my go-to for small sedans and motorcycles. It fits a glovebox and slips into a small trunk bag. If you want something affordable and portable that still handles common dead-battery situations, GB40 is ideal. The verdict: yes for drivers who value portability and simplicity.
I once kept the GB40 in my wife's hatchback. She locked the lights on and drained the battery at a grocery run. I popped the GB40 out, clamped it on, and the car started without drama. Another time I used it to revive a motorcycle on a weekend ride. Those quick saves showed me the GB40 is fast, simple, and one of the easiest units to recommend for daily use.
NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 6.0L Gas and 3.0L Diesel Engines
What Makes It Stand Out / Key Features
- 1000A peak current for up to 6.0L gas and 3.0L diesel engines
- Compact, lightweight design that’s easy to store
- Ultra-safe clamps with spark-proof technology
- USB charging ports for phones and tablets
- Bright LED flashlight with SOS and emergency modes
What I Like
- Small size that I can keep in a glovebox
- Easy to handle and quick to connect in low-light
- Good balance of power for most everyday cars
- Affordable compared to higher-amp models
- Excellent as a multi-use power bank on trips
What Could Be Better
- Not ideal for large trucks or heavy diesel engines
- Fewer repeat jumps per charge compared to GB70
- Less reserve capacity if used frequently without recharge
My Recommendation
Choose the GB40 if you want a lightweight, budget-friendly jump starter for cars, motorcycles, and occasional use.| Best For | Why |
|---|---|
| Small Cars & Motorcycles | Compact size with enough amps for typical engines |
| Everyday Drivers | Affordable and simple for occasional battery issues |
noco jump starter gb70 vs gb40: Side-by-Side Test
I ran both units side-by-side over several weeks. I wanted to see how the noco jump starter gb70 vs gb40 compare on real tasks: power, size, speed, safety, and value. Below are clear category-by-category comparisons from my tests.
Power & Capacity: Which One Packs More Punch?
A look at peak current and how many jump attempts each can deliver.| Feature | GB70 | GB40 |
|---|---|---|
| Peak Current | 2000A | 1000A |
| Engine Size Supported | Up to 8.0L gas / 6.0L diesel | Up to 6.0L gas / 3.0L diesel |
| Repeat Jumps per Charge | Higher (many jumps) | Moderate (fewer jumps) |
| Best Use | Heavy-duty vehicles | Everyday cars |
“GB70 wins for raw power and repeat use; GB40 is adequate for most daily cars.”
Engine Compatibility: Which Handles Your Vehicle?
Compare supported engine types and sizes.| Spec | GB70 | GB40 |
|---|---|---|
| Gasoline Engines | Up to 8.0L | Up to 6.0L |
| Diesel Engines | Up to 6.0L | Up to 3.0L |
| Motorcycles/Small Engines | Yes (overkill but works) | Yes (ideal) |
“GB70 covers the widest range; GB40 fits most cars and bikes well.”
Portability & Size: Which Is Easier to Carry?
Short look at weight, dimensions, and storage.| Measure | GB70 | GB40 |
|---|---|---|
| Weight | Heavier (bulkier) | Light and compact |
| Storage | Trunk or truck bed | Glovebox or bag |
| Ease of Carry | Less convenient | Very convenient |
“GB40 wins for portability; GB70 is best kept in larger vehicles.”
Safety: Which One Protects You Better?
Look at safety features and ease of safe use.| Safety Feature | GB70 | GB40 |
|---|---|---|
| Reverse-Polarity Protection | Yes | Yes |
| Spark-Proof Clamps | Yes | Yes |
| Insulated Clamps | Yes (robust) | Yes (compact) |
| User-Friendly Safety | High | High |
“Both are equally safe with smart clamps and protections for everyday users.”
Speed & Results: Which Starts Faster?
Compare real-world start speed and reliability.| Metric | GB70 | GB40 |
|---|---|---|
| Cold Start Performance | Excellent on big engines | Good on small engines |
| Time-to-Start | Seconds on most vehicles | Seconds on small vehicles |
| Consistency | Very consistent | Consistent for intended engines |
“GB70 starts big engines faster; GB40 is fast for everyday cars.”
Value for Money: Which Gives More Bang?
A practical look at cost versus utility.| Consideration | GB70 | GB40 |
|---|---|---|
| Price | Higher | Lower |
| Cost per Use | Lower if used often | Low for occasional users |
| Long-Term Value | High for heavy users | Great for light users |
“GB40 is great value for everyday users; GB70 is worth the cost for heavy-duty needs.”
Final Verdict: Which Should You Buy?
If you drive trucks, tow, or need the ability to jump many large engines, buy the GB70. It offers higher amps and more repeat jumps. If you own a small car, motorcycle, or want a compact unit to keep in your glovebox, choose the GB40 for its portability and lower price.
Both are quality NOCO products. Your choice depends on vehicle size and how often you expect to use the unit. For peace of mind on long trips pick GB70; for daily convenience pick GB40.
