Both are excellent; GB40 suits cars, while GB70 handles trucks and diesels.
You know that sinking feeling when the starter just clicks? I’ve been there, twice this winter. That’s when the NOCO GB40 vs. NOCO GB70 jump starter debate got real for me. Both revived dead batteries, but they serve different drivers. I tested each on my own cars and a neighbor’s pickup. Below, I share what stood out, what fell short, and how to pick the right fit for you.
Is NOCO GB40 Good?
Yes—for most daily drivers, the GB40 is exactly what you need. It’s rated at 1000 amps and works on up to 6.0L gas and 3.0L diesel engines. In the NOCO GB40 vs. NOCO GB70 jump starter conversation, the GB40 wins for compact size and simple, safe use. It’s the one I toss in the glove box and forget until I need it.
On a cold Monday, my four-cylinder wouldn’t crank. The GB40 clipped on fast, showed a green light, and the engine caught on the first try. Another day, I used it to jump a friend’s V6 after he left his lights on. Again, one press, one start. It’s the “everyday carry” of boosters—light, safe, and dependable. For the NOCO GB40 vs. NOCO GB70 jump starter choice, this is your small-to-midsize car solution.
What Makes It Stand Out / Key Features
- 1000-amp, 12V lithium jump starter for up to 6.0L gas and 3.0L diesel engines
- UltraSafe tech with spark-proof and reverse-polarity protection
- Built-in LED flashlight (up to ~100 lumens) with SOS and strobe modes
- USB power bank output (5V) to top up phones and small devices
- Compact, glove-box-friendly body with clear status LEDs
What I Like
- Small and light—easy to keep in the car at all times
- Simple clamps and clear indicators reduce guesswork
- Starts typical sedans and crossovers with confidence
- Safe design; no sparks and good polarity protection
- Handy flashlight for night jumps or roadside work
- Reliable USB power bank in a pinch
What Could Be Better
- Micro-USB charging is slower than a 12V fast-charge option
- Not ideal for big V8 trucks or larger diesels
- Shorter cables make some battery placements a bit tight
My Recommendation
If you drive a small-to-midsize gas car or light SUV, the GB40 is a smart, safe buy with strong value. It’s widely available and often discounted.
| Best For | Why |
|---|---|
| Daily drivers with gas engines up to 6.0L | Enough cranking power without bulk |
| Budget-minded buyers | Lower price versus larger models |
| Glove-box portability | Compact, light, easy to store |
Is NOCO GB70 Good?
It depends on your vehicle. For trucks, big SUVs, and many diesels, yes—the GB70 is the safer pick. In the NOCO GB40 vs. NOCO GB70 jump starter matchup, the GB70 is the heavy hitter with 2000 amps and support for up to 8.0L gas and 6.0L diesel engines. It also adds a powerful 12V port for gear.
I keep the GB70 in my work truck. It brought a 5.7L V8 back to life after a week in sub-freezing temps. Another time, I used the 12V port to run a tire inflator after a jobsite nail. It is larger and pricier, but when you need that extra grunt—or you help friends and neighbors often—the GB70’s muscle and features pay off. This is where the NOCO GB40 vs. NOCO GB70 jump starter decision swings to power users.
What Makes It Stand Out / Key Features
- 2000-amp, 12V lithium jump starter for up to 8.0L gas and 6.0L diesel engines
- UltraSafe protections: spark-proof and reverse-polarity
- High-output 12V port (XGC) to power accessories and fast-recharge the unit
- Brighter integrated LED work light with multiple modes
- USB power bank output for phones and tablets
What I Like
- Serious cranking power for big engines and cold weather
- 12V port runs inflators, coolers, and other roadside gear
- Faster recharge when using the 12V XGC input
- Bright light helps at night or under the hood
- Durable build and robust clamps feel pro-grade
- Confidence when helping others often
What Could Be Better
- Bigger and heavier; not glove-box friendly
- Costs more than the GB40
- Micro-USB charging works, but it’s slow—use the 12V input for speed
My Recommendation
Choose the GB70 if you drive a truck, large SUV, or a diesel, or you want a 12V utility port. It’s strong value for power users.
| Best For | Why |
|---|---|
| Trucks, big SUVs, many diesels | 2000A punch for hard starts |
| Frequent helpers and pros | More starts per charge, sturdier clamps |
| Running 12V accessories | Built-in high-output 12V port |
NOCO GB40 vs. NOCO GB70 jump starter: Side-by-Side Test
I compared both on real cars in cold weather and normal days. Below are the differences that matter most, based on how I used them. If you’re weighing the NOCO GB40 vs. NOCO GB70 jump starter, this is the practical breakdown.
Cranking Power & Compatibility: Which Starts More Engines?
Power is the heart of the NOCO GB40 vs. NOCO GB70 jump starter decision. Here’s what I saw.
| Spec | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Peak Amps | 1000A | 2000A |
| Gas Engines | Up to 6.0L | Up to 8.0L |
| Diesel Engines | Up to 3.0L | Up to 6.0L |
| Cold-Weather Starts | Good for sedans/SUVs | Stronger for trucks/diesels |
Rating: GB40 – 8/10 | GB70 – 9.5/10
> GB70 has the edge for larger engines and harsh cold starts.
Battery Endurance: How Many Starts Per Charge?
Real-world endurance varies by engine size and temperature, but trends are clear.
| Factor | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Typical Daily Drivers | Plenty for occasional use | More headroom for repeats |
| Help Multiple Vehicles | Fair, may need recharge | Better, lasts longer |
| Cold Weather Reserve | Moderate | High |
| Recovery Time | Slower via micro-USB | Faster via 12V input |
Rating: GB40 – 8/10 | GB70 – 9/10
> GB70 lasts longer between charges and recovers faster.
Charging & Ports: Which Is More Versatile?
Charging speed and accessory power matter on the road.
| Port | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Device Charging | USB out (5V) | USB out (5V) |
| Unit Recharge | Micro-USB | Micro-USB or 12V XGC (faster) |
| 12V Accessory Power | No | Yes, high-output 12V |
| Use with Inflators | Limited | Yes, works well |
Rating: GB40 – 7.5/10 | GB70 – 9.5/10
> GB70 wins with a real 12V port and faster recharge options.
Size & Portability: Which Is Easier to Carry?
Storage space is part of the NOCO GB40 vs. NOCO GB70 jump starter choice.
| Aspect | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Footprint | Compact, glove-box ready | Larger, trunk/toolbox |
| Weight | Light | Noticeably heavier |
| Everyday Carry | Ideal | Better kept in trunk |
| Travel | Easy pack | Bulky |
Rating: GB40 – 9.5/10 | GB70 – 7.5/10
> GB40 is much easier to stash and carry daily.
Safety & Build Quality: Which Feels More Secure?
Both share NOCO’s UltraSafe DNA and sturdy casings.
| Feature | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Spark-Proof Tech | Yes | Yes |
| Reverse Polarity Protection | Yes | Yes |
| Clamp Robustness | Good | Excellent, beefier |
| Manual Override | Yes | Yes |
Rating: GB40 – 9/10 | GB70 – 9.5/10
> GB70 feels tougher with heavier-duty clamps.
Lights & Extras: What Helps at Night?
A good work light and useful extras improve real-world use.
| Feature | NOCO GB40 | NOCO GB70 |
|---|---|---|
| LED Brightness | Good for close tasks | Brighter for under-hood work |
| SOS/Strobe | Yes | Yes |
| Accessory Support | USB only | USB + 12V gear |
| Roadside Utility | Basic | Advanced |
Rating: GB40 – 8/10 | GB70 – 9.5/10
> GB70’s brighter light and 12V port make roadside work easier.
Ease of Use: Which Is Simpler Day-to-Day?
Clarity and speed matter when you’re stranded.
| Aspect | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Setup Speed | Very quick | Quick |
| Status Indicators | Clear LEDs | Clear LEDs |
| Storage | Easier | Requires more space |
| Night Use | Good | Better |
Rating: GB40 – 9/10 | GB70 – 8.5/10
> GB40 is simpler to carry and deploy for quick jumps.
Value for Money: Which Delivers More for Your Budget?
Price meets need—that’s the core of the NOCO GB40 vs. NOCO GB70 jump starter choice.
| Buyer Type | NOCO GB40 | NOCO GB70 |
|---|---|---|
| Small/Mid Cars | Best value | Overkill |
| Trucks/Diesels | May fall short | Right-sized |
| Feature Set | Core features | Premium extras |
| Total Ownership | Lower cost | Higher cost, more utility |
Rating: GB40 – 9/10 | GB70 – 8.5/10
> GB40 is the better value for most commuters; GB70 is worth it for big engines and 12V gear.
Final Verdict: Which Should You Buy?
If you drive a sedan, compact, or mid-size SUV, pick the GB40. It’s small, safe, and affordable. It handles everyday jumps with ease. For the average NOCO GB40 vs. NOCO GB70 jump starter buyer, the GB40 is the right call.
If you run a truck, big SUV, or a diesel—or you want a 12V port for tools—get the GB70. It has more power, better endurance, and faster recharge. In the NOCO GB40 vs. NOCO GB70 jump starter debate, GB70 is the muscle when you need it.
FAQs Of NOCO GB40 vs. NOCO GB70 jump starter
What is the main difference in the NOCO GB40 vs. NOCO GB70 jump starter?
GB40 is a 1000A unit for up to 6.0L gas/3.0L diesel. GB70 doubles the power to 2000A and supports up to 8.0L gas/6.0L diesel, plus adds a 12V accessory port and faster 12V recharging.
Which should I choose for a V8 truck or a diesel?
Choose the GB70. In the NOCO GB40 vs. NOCO GB70 jump starter matchup, the GB70’s higher amps and 12V features fit larger engines and cold starts.
Can both charge my phone and small devices?
Yes. Both have a USB power bank output. The GB70 also has a 12V port for accessories that the GB40 lacks.
How often should I top up the battery on these jump starters?
Check and recharge every 2–3 months, and always recharge after each use. That keeps either unit ready when you need it.
Are they battery maintainers or trickle chargers?
No. The NOCO GB40 vs. NOCO GB70 jump starter units are for jump starts and short accessory power. They are not maintainers. Use a dedicated charger for long-term battery care.
