Best Portable Jump Starters (2026) — Tested & Ranked
Quick Comparison: Our Top Picks
| Model | Best For | Rating |
|---|---|---|
| 🥇 NOCO Boost Plus GB40 | Overall best portable jump starter | ★★★★★ |
| 🥈 HULKMAN Alpha 85S | Best high-power jump starter | ★★★★½ |
| 🥉 AVAPOW A28 Jump Starter | Best budget jump starter | ★★★★ |
NOCO Boost Plus GB40
NOCO Boost GB40 is the jump starter that roadside assistance pros carry. 1000A peak current starts gas engines up to 6 liters and diesel up to 3 liters. The ultrasafe design prevents reverse polarity sparks and short circuits — completely foolproof.
Our tester left a car with the lights on overnight and jumped it in under 30 seconds with the GB40. The built-in LED flashlight is useful in dark parking lots. The lithium battery holds its charge for months in the trunk. At ~$100, cheaper than one AAA tow. Every car should have one.
Key Specs
- Peak Amps: 1000A
- Engine Size: Up to 6L gas / 3L diesel
- Battery: Lithium, holds charge for months
- Features: LED flashlight, USB charging
Pros
- 1000A starts virtually any car
- Spark-proof, reverse polarity protection
- Holds charge for months in your trunk
Cons
- $100 price point
- Cannot jump large trucks or RVs
- USB output is slow (5V/2.1A)
HULKMAN Alpha 85S
HULKMAN Alpha 85S delivers 2000A peak current — enough to jump start trucks, SUVs, and even some boats. The smart display shows battery percentage and voltage in real-time. Cranking detection technology automatically senses when the engine turns over.
Our tester jumped a V8 truck in freezing weather with ease. The 20,000mAh battery also serves as a power bank for phones and laptops (USB-C PD). The carrying case keeps everything organized. At ~$90, incredible power for the price.
Key Specs
- Peak Amps: 2000A
- Engine Size: Up to 8.5L gas / 6L diesel
- Battery: 20,000mAh lithium
- Display: Smart LCD (voltage + percentage)
Pros
- 2000A jumps trucks and V8 engines
- Smart LCD display
- USB-C PD charges laptops
Cons
- Heavier than NOCO GB40
- Larger form factor
- New brand (less track record than NOCO)
AVAPOW A28 Jump Starter
AVAPOW A28 claims 4000A peak (real-world: ~1500A effective) but at ~$60, it is a solid value. It jumped our test vehicle reliably and includes a 400-lumen LED flashlight with strobe and SOS modes.
The 27,800mAh battery can jump a car 20+ times on a single charge and charges phones multiple times via USB. The carrying bag includes the clamps and cables. For the price, it is a no-brainer to keep in your trunk. Solid backup for emergencies.
Key Specs
- Peak Amps: 4000A (claimed)
- Battery: 27,800mAh
- Flashlight: 400 lumens (strobe + SOS)
- Price: ~$60
Pros
- Incredible value at ~$60
- Huge 27,800mAh battery doubles as power bank
- Bright flashlight with emergency modes
Cons
- 4000A rating is inflated
- Build quality below NOCO/HULKMAN
- Bulkier and heavier than competitors
Frequently Asked Questions
How long does a portable jump starter hold its charge? ▼
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