Car battery jump starters. Many, many small models. Can they really do it? Do they have the oomph?

[keithbvadu2]

Car battery jump starters.

Many, many small models.
Can they really do it? Do they have the oomph?

https://www.amazon.com/s?k=battery+jumper+starter+portable&page=2&crid=1X77B988H9EX0&qid=1716824067&sprefix=battery+jum%2Caps%2C272&ref=sr_pg_2

Walmart has this one for $50

https://www.walmart.com/ip/EverStart-J7CE-Maxx-800-Peak-Amp-Jump-Starter-with-120-PSI-Compressor-Pivoting-LED-Light-3-USB-Ports/941316836?athbdg=L1102&from=/search

[indigoth]

1. As a car guy ...

I’ve been highly suspicious. However. Two friends have them and rely on them, heavily. I’ve seen one start a Toyota with a totally dead battery in -10F temperatures. After seeing that, I do think, if sized reasonably well, they’d serve their intended purpose acceptably.

[Shellback Squid]

2. Yes, they work and are much easier to use, check reviews as some are cheaply built

I bought this one:

Schumacher Electric SL1639 Lithium Portable Power Pack and Jump Starter for Car, Motorcycle, Truck, and Boat Batteries, 1000 Amps, 12 Volt, Red and Black, 1 Unit

[QED]

3. My battery died and the tow truck guy used one of those to jump my car.

I have cables but no one in the neighborhood was home. The tow truck guy said cables were becoming obsolete because the small hand held devices were more convenient.

I found a device at Costco that is a combo air compressor and jump starter for about $100. The two truck charged $65.

https://www.costco.com/UltraPro-Elite-1200A-Jump-Starter,-Air-Compressor,-LED-Light.product.1701431.html

[Ialwaysvote]

4. This charger has worked well for us.

https://www.amazon.com/DBPOWER-18000mAh-Portable-Starter-Charging/dp/B01D42TYFC/ref=sr_1_7?crid=1YLDOYXKNG243&dib=eyJ2IjoiMSJ9.xONGDWvgFm96rtRq_InCfiQjUpVpZPfUjlpqoUFnaesAWhvbq-YMi5lXTOcNnKsAvHmoAfPfrvhhETXmLQgLzBF9n-ntYr0zBH91RaasyKIi10OCAdHUX8U27v7d9sBoxcLj_EW-LVqx60JZlgNGAvj3G8elRiywhmCYacX_ngu_2MzjuNDtR7YIdvcmcdTQ_VIFsQYU08b7B7tCsv71Ho6g3Eh6C9YqozGauqfzap7sc_nCdu4lQH77bOY4LEJCFGWY7ITL9mDMKw3EWNaBnN6bXZAbNv-tDAR3f0Zwdpk.x87K0qTDIwkL8U1mtD-ja6wMWn2Lp87MUtMv9ZUQMd4&dib_tag=se&keywords=db+power+battery+jump+starter&qid=1716827463&sprefix=db%2Caps%2C140&sr=8-7

[keithbvadu2]

6. I bought that battery jumper from Amazon. Works great! Thanks.

I bought that battery jumper from Amazon. Works great! Small wires. You can only use it for a short time and then let it cool off.
It came with 75% charge and started the engine three times I think.
The one from Costco looked good but would get it around June 4th.
Amazon was one day.

[keithbvadu2]

5. I have a 3.3 liter v-6 minivan. So far, these look quite capable.

[JohnnyRingo]

7. Everyone should have a jump box in heir trunk.

The general rule applies: Don't buy the cheapest one or the most expensive one.
One that says it will start full size trucks is a good idea. Probably talking about $125 at the most.

[3Hotdogs]

8. They work. But remember to charge them every 6 weeks or so.

I have one to help other peeps in parking lots. I have a hybrid so I can't use it on my car. My car has its on internal jump start mechanism. It too, works.


I also carry an electric jack, full array of lug sockets and 1`8" brakes bar to help people on the road. I also carry a tire patching kit for my car and other people.

[keithbvadu2]

9. Yeah. Mine says 3 months. Don't crank over 3 seconds.

Much power but very briefly.

[usonian]

10. I have a DieHard that didn't turn over a guy's truck engine, but

I had let the charge run down to 80%. Oops.

Cables did the job.

Check everything!

Audew rated well in a comparison I did a few years ago.