NOCO Boost Plus GB40 Jump Starter vs Ring RAC845 Compact Car Jump Starter 600A (2026)
Which is better? We compared both on score, owner ratings, pros and cons.
NOCO Boost Plus GB40 Jump Starter
1000A, jumps petrol to 6L diesel, USB powerbank, LED torch, spark-proof. The jump starter benchmark.
Full Review
Ring RAC845 Compact Car Jump Starter 600A
600A, under £40, pocket size, reverse polarity. The ultra-budget emergency jump starter.
Full ReviewAt a Glance
| NOCO Boost Plus GB40 Jump Starter | Ring RAC845 Compact Car Jump Starter 600A | |
|---|---|---|
| 247Verdict Score | 9.3/10 | 8.3/10 |
| Owner Rating | 4.7★ (42,400) | 4.3★ (9,200) |
| Verdict | Excellent | Very Good |
| Safety | Spark-proof + reverse polarity | Reverse polarity alarm |
Quick Verdict
Both are strong choices, but the NOCO Boost Plus GB40 Jump Starter edges ahead with a 9.3/10 vs 8.3/10. 1000A, jumps petrol to 6L diesel, USB powerbank, LED torch, spark-proof. The jump starter benchmark. That said, the Ring RAC845 Compact Car Jump Starter 600A is worth considering if 600A, under £40, pocket size, reverse polarity. The ultra-budget emergency jump starter. Check the current price on Rexing →
Pros & Cons Side by Side
NOCO Boost Plus GB40 Jump Starter
- 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
- 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)
Ring RAC845 Compact Car Jump Starter 600A
- Under £40 — most affordable jump starter that covers standard petrol cars
- 600A handles petrol engines up to 2.5L — covers most small city cars
- Pocket-size at 135g — genuine glove-box permanent storage
- Reverse polarity alarm prevents connection errors
- USB charging port provides backup power for phones
- 600A is the minimum — won't start 2.5L+ engines reliably
- Lower peak amp confidence vs NOCO build quality
- Shorter lifespan expectation vs premium alternatives
FAQ
Which is better, NOCO Boost Plus GB40 Jump or Ring RAC845 Compact Car 600A?
Both are strong choices, but the NOCO Boost Plus GB40 Jump Starter edges ahead with a 9.3/10 vs 8.3/10. 1000A, jumps petrol to 6L diesel, USB powerbank, LED torch, spark-proof. The jump starter benchmark. That said, the Ring RAC845 Compact Car Jump Starter 600A is worth considering if 600A, under £40, pocket size, reverse polarity. The ultra-budget emergency jump starter.
Is the NOCO Boost Plus GB40 Jump worth the extra cost?
Yes — NOCO Boost Plus GB40 Jump Starter scores higher at 9.3/10 vs 8.3/10.
Who is the NOCO Boost Plus GB40 Jump best suited to?
1000A, jumps petrol to 6L diesel, USB powerbank, LED torch, spark-proof. The jump starter benchmark.
Who is the Ring RAC845 Compact Car 600A best suited to?
600A, under £40, pocket size, reverse polarity. The ultra-budget emergency jump starter.
What are the main downsides of each?
NOCO Boost Plus GB40 Jump Starter: 1000A limit — very large diesels need the higher-capacity GB70 or GB150; Requires periodic recharging to stay ready. Ring RAC845 Compact Car Jump Starter 600A: 600A is the minimum — won't start 2.5L+ engines reliably; Lower peak amp confidence vs NOCO build quality.
Do owner ratings agree with our verdict?
Largely, yes — NOCO Boost Plus GB40 Jump Starter sits at 4.7★ from 42,400 verified Amazon owners, and Ring RAC845 Compact Car Jump Starter 600A at 4.3★ from 9,200.
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