The AstroAI MF139 is a portable jump starter designed to revive the batteries of various vehicles, including cars, motorcycles, trucks, and boats. Furthermore, it’s a compact and lightweight device that packs a punch in terms of power. This jump starter is equipped with a high-capacity battery and smart safety features, making it a valuable addition to any vehicle’s emergency kit.
AstroAI MF139 features
- START COMPLETELY DEAD BATTERIES. With a built-in 60c of extreme power and a 1750A peak current, this jump starter battery pack can start 7.5L gas and 5.0L diesel engines quickly and efficiently, even if the battery is below 9V. Also compatible with 12V vehicles like motorcycles, cars, SUVs, trucks, and lawnmowers; even in extreme temperatures (-4°F~122°F).
- EFFICIENTLY INFLATE TIRES. Inflates leaky tires from 32PSI to 36PSI in just 60s. The built-in 150PSI air compressor is professionally calibrated to always return an accurate reading within 1% of the exact tire pressure. It includes an extension air hose and 3 different nozzles to inflate cars, bikes, balls, and other inflatables. NOTE: THE AIR TUBE WILL BE HOT AFTER INFLATION, PLEASE WAIT A MOMENT TO REMOVE.
- PRESET TIRE PRESSURE & AUTO SHUTOFF. The preset mode allows you to set the tire pressure anywhere, eliminating the need to squint under the scorching sun. Besides, it will automatically shut off once it reaches the preset value. Inflate with confidence and safety, without worrying about overinflation.
- 3.7″ VISIBLE LCD & LED DISPLAY. Compared with traditional jump starters that only have analog indicators, the AstroAI car jump starter’s visible LCD & LED clearly display all relevant information. If you get stuck on a road trip with a dead battery, you won’t have to guess with clunky indicators or anxiously wait hours for roadside assistance on desolated interstates. Just follow the instructive steps on the screen to save yourself easier and safer.
- 6-IN-1 MULTI-FUNCTION. The AstroAI Lithium portable jump starter for car battery includes 6 integrated functions. It’s a car jump starter, air compressor, portable 12000mAh power bank and an LED flashlight with 3 modes (Stable, Strobe, SOS). This 6-in-1 multi-function tool is a must-have in any road trip kit.
AstroAI MF139 Advantages & Disadvantages
| Advantages | Disadvantages |
|---|---|
| ✔️ Portable Power: Its compact size means it can fit in your glove compartment or trunk without taking up much space. | ✖️ Limited Battery Life: Like all jump starters, the AstroAI MF139 has a limited number of jump starts on a single charge, so regular recharging is necessary. |
| ✔️ Versatile: The AstroAI MF139 is suitable for various vehicle types, making it a versatile solution for different scenarios. | ✖️ Price: While it offers excellent value for its features, some users may find it relatively expensive compared to basic jump starters. |
| ✔️ Safety: With its safety features, you can use it with confidence, knowing that it minimizes the risk of accidents. | |
| ✔️ Compact and portable: With an overall size of 6.1*4.9*1.9 inches and a total weight of 1.9lbs, it is very easy to keep in a car or carry in a travel bag. Compared with bulky lead-acid jump starters, it brings more convenience and peace of mind to road trips. |
How to use the AstroAI MF139 jump starter
Using the AstroAI MF139 jump starter is a straightforward process:
- Connect the Clamps: Attach the red clamp to the positive terminal and the black to the negative terminal of your vehicle’s battery.
- Power On: Press the power button on the AstroAI MF139 to activate it.
- Start Your Vehicle: Turn the ignition key, and then, the jump starter will supply the necessary power to start it.
AstroAI MF139 Comparison models
 |  | |  | |
| Model | 118 | S8 | MF139 | MF159 |
| Amps | 2000 Amps | 1500 Amps | 1750 Amps | 2500 Amps |
| Gas Engines | Up to 7.0 Liters | Up to 6.0 Liters | Up to 7.5 Liters | Up to 7.5 Liters |
| Diesel Engines | Up to 3.0 Liters | Up to 3.0 Liters | Up to 5.0 Liters | Up to 5.0 Liters |
| Battery | Lithium Ion | Lithium Ion | Lithium Ion | Lithium Ion |
| Voltage | 12V | 12V | 12V | 12V |
| Weight | 1.3 pounds | 0.95 pounds | 1.9 pounds | 2.43 pounds |
| Air Compressor | No | No | 150PSI | 150PSI |
| Air Pump | No | No | No | 220 L/Min |
 | | | |
How to Maintain Your MF139
If you own a portable jump starter or are considering getting one, it’s crucial to understand how to keep it in top-notch condition
- Regular Inspection for Optimal Performance of Your MF139 Car Battery Jumper
- Proper charging is crucial to maintain the functionality of your AstroAI MF139 car battery jumper.
- Storage. Proper storage is equally important, especially if you don’t use your MF139 frequently.
- Regularly testing your jump starter ensures that it’s in working condition when you need it.
- Whenever possible, store your MF139 portable jump starter in a moderate temperature environment between 50 ºF – 70 ºF. Like vehicle batteries, exposure to extreme temperatures is detrimental to jump starter batteries, both in the short term and long term.
- Respect the cycles. Every jump starter is subject to a duty cycle in which the vehicle can be cranked only so long before a period of rest is needed. For almost all jump starters, the recommended duty cycle is between 5-6 seconds of cracking followed by 3-5 minutes of rest.
- Clean clamps. A battery in poor condition may have battery acid on the posts, so wiping down the clamps after jump starting a vehicle always is a good practice to keep the clamps from becoming corroded
If you want more information about how to maintain your car battery jumper click here.
AstroAI MF139 User Reviews
Kari Morton – ★★★★★ (5/5)
Doing what is advertised!
So far only used it on my granddaughters car for adding air to 1 tire. Works well and shuts off at the preset pressure. Since I haven’t used it as a jump starter yet I can only rate it for what I have used. Great instructions in a hard case. This unit comes with more amenities than others costing twice as much. I’m pleased so far.
Demara Austin – ★★★★☆ (4/5)
Works well. Only one jump!
You can only get one jump per charge, even though the battery will still have power. I love this, it’s easy to use, but be warned that you need to charge it between jumps. If you’re using this while waiting for a battery problem to get fixed, only go places you can charge it.
Kevin Stoller – ★★★★★ (5/5)
Does what it says
So far it does what it says. I leveled off 8 tires and power only dropped to 66%. Haven’t had to jump anyone off yet but I’m it will do the job. I like the fact that the goes has the clamp instead of screw on when you inflate tires and the fact that I don’t have to pkug it in the car to get power. Was impressed that when I got the the pump out of the case that’s been in the glove box for over a week and still has 100% power. Would highly recommend this product.