WOLFBOX MegaVolt 24Air
#11 in Heavy dutyFull review
For truck and SUV owners who want a jump starter and a fast tire inflator in one box. It covers gas engines up to 10 liters for little more than the 16Air.
Amazon $184.99$184.99
The WOLFBOX MegaVolt 24Air is the better jump starter overall, rated 3.9 to 3.7. The KeenPower SC6000 Pro Supercapacitor wins on features. The WOLFBOX MegaVolt 24Air costs $15 less ($184.99 vs $199.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
KeenPower SC6000 Pro Supercapacitor
#13 in Heavy dutyFull review
For drivers in very cold places, or who leave a jump starter in the car for years and forget to charge it. Most people get more for their money from a lithium pack.
Amazon $199.99$199.99
Which should you buy?
- Choose the KeenPower SC6000 Pro Supercapacitor for features (manual override, rated to -45 °F vs rated to -4 °F, USB-C charging, IP64).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every heavy duty jump starter; a clear win is highlighted. How we rank explains each one.
| Factor weight | WOLFBOX MegaVolt 24Air | KeenPower SC6000 Pro Supercapacitor |
|---|---|---|
| Overall rating | 3.9/5 | 3.7/5 |
| Value 40% | 76 $184.99 for its size | 71 $199.99 for its size |
| Features 35% | 70 rated to -4 °F, USB-C charging, IP64 | 80 manual override, rated to -45 °F |
| Capacity 15% | 61 88.8 Wh battery | 50 capacity not published in Wh (neutral score used) |
| Warranty 10% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| WOLFBOX MegaVolt 24Air | KeenPower SC6000 Pro Supercapacitor | |
|---|---|---|
| Starting | ||
| Rated engines | 10 L gas, 6 L diesel | all gas |
| Peak amps (maker) | 4,000 A | 6,000 A |
| Voltage | 12 V | 12 V |
| Manual override | - | Yes |
| Lowest operating temperature | -4 °F | -45 °F |
| Battery and charging | ||
| Chemistry | Lithium-ion | Supercapacitor |
| Capacity | 88.8 Wh | - |
| Capacity (mAh) | 24,000 mAh | - |
| USB-C input | 65 W | - |
| Recharge time | 2 hours | - |
| USB outputs | USB-C 65 W, USB-A 18 W, USB-A 12 W | - |
| Build | ||
| Flashlight | Yes | - |
| Air compressor | Yes | No |
| Water resistance | IP64 | - |
| Dimensions | 9.39 x 5.28 x 2.16 in | - |
| Weight | 3.4 lb | 11.5 lb |
| Warranty | 2 years | - |
| Released | 2025-06 | 2024-04 |