Our Verdict
NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and LED torch and fits in the glovebox. 42,400 reviews at 4.7★. Large diesels need the GB70 — for most drivers, the GB40 is the self-contained jump starter that eliminates the need for a second car or jump leads.
Pros & Cons
✓ Pros
- 1000A peak current jumps petrol engines and diesels up to 6L — covers most vehicles
- Spark-proof technology and reverse polarity protection prevent connection errors
- Doubles as a USB power bank for phones and a 100-lumen LED torch
- Compact enough to keep in the glovebox permanently
- 42,400 reviews at 4.7★ — the most validated jump starter reviewed
✗ Cons
- 1000A limit — very large diesels need the higher-capacity GB70 or GB150
- Requires periodic recharging to stay ready
- Premium vs basic jump leads (but no second car needed)
Key Specifications
| Current | 1000A peak |
|---|---|
| Range | Petrol to 6L diesel |
| Powerbank | USB |
| Torch | 100-lumen LED |
| Safety | Spark-proof + reverse polarity |
| Reviews | 42,400 at 4.7★ |
Performance
NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and LED torch and fits in the glovebox. 42,400 reviews at 4.7★. Large diesels need the GB70 — for most drivers, the GB40 is the self-contained jump starter that eliminates the need for a second car or jump leads. On paper the headline numbers are current of 1000A peak, range of Petrol to 6L diesel, powerbank of USB, torch of 100-lumen LED, safety of Spark-proof + reverse polarity, reviews of 42,400 at 4.7★. Its standout is that 1000a peak current jumps petrol engines and diesels up to 6l — covers most vehicles
Build Quality & Design
Beyond that, owners and the spec sheet point to a few more genuine strengths. Spark-proof technology and reverse polarity protection prevent connection errors. Doubles as a USB power bank for phones and a 100-lumen LED torch. We can't bench-test durability, but the depth of positive long-term owner feedback is the best available proxy for how it holds up.
Value for Money
It isn't flawless. 1000A limit — very large diesels need the higher-capacity GB70 or GB150. Requires periodic recharging to stay ready. Premium vs basic jump leads (but no second car needed). Whether those matter depends entirely on how you'll use it. At the premium price point, the trade-offs are easy to live with for the right buyer. It's the right call for NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and LED torch and fits in the glovebox. 42,400 reviews... Look elsewhere if you're among Large diesel or commercial vehicle owners — the GB70 or GB150 provide higher capacity.
Final Verdict
NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and LED torch and fits in the glovebox. 42,400 reviews at 4.7★. Large diesels need the GB70 — for most drivers, the GB40 is the self-contained jump starter that eliminates the need for a second car or jump leads.
Check Price on Amazon ↗FAQ
Is the NOCO Boost Plus GB40 Jump Starter worth the money?
NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and LED torch and fits in the glovebox. 42,400 reviews at 4.7★. Large diesels need the GB70 — for most drivers, the GB40 is the self-contained jump starter that eliminates the need for a second car or jump leads. NOCO Boost Plus GB40 is the jump starter benchmark. 1000A jumps petrol and diesels to 6L with spark-proof safety, doubles as a USB power bank and
Who should NOT buy the NOCO Boost Plus GB40 Jump Starter?
Large diesel or commercial vehicle owners — the GB70 or GB150 provide higher capacity.
Is the NOCO Boost Plus GB40 Jump Starter available in the UK and US?
Yes — we list both Amazon UK and US links. Always verify voltage compatibility (UK 230V, US 120V).
Alternatives to Consider
NOCO Boost Plus GB40 1000A Jump Starter
9.4/101000A, 6.0L petrol / 3.0L diesel, reverse polarity protection, USB charging. The mechanic's recommendation.
Check Price ↗
NOCO Boost X GBX55 1750A Jump Starter
9.2/101750A, 8.0L petrol / 6.0L diesel, UltraSafe spark-proof clamps. For larger engines and diesel vans.
Check Price ↗
Ring RAC845 Compact Car Jump Starter 600A
8.3/10600A, under £40, pocket size, reverse polarity. The ultra-budget emergency jump starter.
Check Price ↗Or see full comparisons: vs NOCO Boost Plus GB40 1000A Jump Starter, vs CTEK MXS 5.0 Battery Charger, vs BlackVue DR970X-2CH 4K Dual-Lens Dashcam