# Which lithium jump starter has the longest battery life? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which lithium jump starter has the longest battery life?

## Products

### NOCO Boost HD GB70
```yaml
product: noco-boost-hd-gb70
brand: NOCO
price_gbp: 147.54
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 1
weight: 4.18lbs (1.9kg)
peak_current: 2000
charging_time: 3
voltage_output: 12
includes_cables: true
reversible_polarity_protection: true
```

- **Price:** £147.54 [^1]
- **Summary:** The NOCO Boost HD GB70 is a 2000A 12V lithium-ion jump starter with a 56 Wh internal battery, IP65 water/dust resistance, a 400-lumen LED flashlight, USB charging and 12V out/in ports, and safety features like spark-proof operation and reverse polarity protection. It is compact and lightweight for its power, designed for gasoline engines up to 8.0L and diesel up to 6.0L, suitable for cars, trucks, boats, and RVs.
- **Ideal For:** Ideal for the question about longest battery life because it contains a 56 Wh internal lithium-ion battery and offers up to 40 jump starts per charge, indicating strong runtime for repeated use.
- **Additional Sources:** [^2], [^3]

### NOCO Boost Plus GB50
```yaml
product: noco-boost-plus-gb50
brand: NOCO
price_gbp: 110.64
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 2
weight: 2.45 lbs / 1.11 kg
capacity: 3.15
peak_current: 1500
charging_time: 4.5-18
voltage_output: 5
includes_cables: true
reversible_polarity_protection: true
```

- **Price:** £110.64 [^4]
- **Summary:** The NOCO Boost Plus GB50 is a compact 1500-amp lithium-ion jump starter for 12V vehicles, supporting gasoline engines up to 7.0L and diesel engines up to 4.5L. It can provide up to 30 jump starts per charge, recharge USB devices, and includes reverse polarity protection, battery clamps, and charging cables.
- **Ideal For:** It suits the question about the longest battery life because its 35 Wh battery provides up to 30 jump starts per charge, holds its charge for up to one year, and can recharge a smartphone approximately 2-3 times.
- **Additional Sources:** [^5], [^6]

---
## References & Sources
[^1]: Acme Tools, accessed 2026-09-13. https://www.acmetools.com/noco-boost-hd-2000a-ultrasafe-lithium-jump-starter-gb70/046221150056.html
[^2]: NOCO Store, accessed 2026-09-13. https://no.co/gb70
[^3]: Automoblog (affiliate listing), accessed 2026-09-13. https://www.automoblog.com/noco-gb70-review/
[^4]: AutoZone, accessed 2026-09-13. https://www.autozone.com/p/noco-vehicle-jump-starter-gb50/1218501
[^5]: BatteryMart, accessed 2026-09-13. https://www.batterymart.com/p-gb50-noco-genius-boost-plus-jump-starter.html
[^6]: Best Buy, accessed 2026-09-13. https://www.bestbuy.com/product/noco-boost-gb50-1500a-ultrasafe-jump-starter-12v-portable-lithium-battery-booster-pack-7-0l-gas-4-5l-diesel/J7GRLJ36GJ