Jump start battery packs.

[GTvert90]

The charger on mine took a shit and I can't find the part online so I'm shopping. The one I had stayed charged for ever, nothing fancy but reliable. I don't need the best of the best but want something that will last. There's all these mini ones on Amazon with phone chargers, flash lights, radios, yada yada that is 1/3 the size that my old one was. Do they work? Obviously they'd need to be charged more often. What's everyone using?

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[IDAFC21]

I use this one. Has an air compressor in it as well for inflating tires, and USB jacks if you really need to plug a phone or something in it to charge in an emergency. Even bought my dad one and he's gotten plenty of use out of it. I normally bring it inside once a month or so just to top it off and make sure its all charged up. Doesnt take long to charge if you dont drain it.

https://www.amazon.com/dp/B00RZXVQSU/?tag=tcg21-20

 

[wolfe]

https://www.amazon.com/dp/B072BLJF49/?tag=tcg21-20

I got this for the wife and my mom. They work great. Have 2 USB ports so you can charge a cellphone from it as well. They have one with a little more power out now for only like )10 more. That wasn't an option when I got mine or I would've got that one.

 

[wolfe]

Oh, as far as charging goes, they recommend every 3 months. Ours is never drained by then. And they will jump a car more than once between charges.

 

[Thirdgen89GTA]

Lithium based batteries will hold their charge state forever for the most part. They are less tolerant of being stored with a full charge, so keeping them around 75% charge is best for longevity. But they don't self discharge, so whatever the charge state is when you put it away, is where it remains.

One of my RC cars is powered by two 12.6v 5amp batteries. Each battery is capable of discharging 250amp continuously and upwards of 350amps for brief periods, aka just a few seconds. And each battery only weighs 1.1lbs.

Normally, I have them wired in series in the car to create a single 25v battery.

But, I have on occasion wired them in parallel, and used them to jump a car. The little 2lb battery pack can put a huge car battery to shame in terms of starting power.

Wired in parallel it can deliver about 500amps @ 12v continuously and could probably deliver near 700amps for a second or two. Easily enough to start a car with a weak battery.

 

[Yaj Yak]

im really interested in one of these just cuz of how small it is

https://www.amazon.com/dp/B015TKUPIC/?tag=tcg21-20

we have one of these at work, it's fantastic... i've started & run a 4.0 straight six with it (no battery)

https://www.amazon.com/dp/B000JFJLP6/?tag=tcg21-20

 

[Yaj Yak]

https://www.amazon.com/dp/B01MY9FZM4/?tag=tcg21-20

this one looks really nice

 

[nytebyte]

The problem with those really small ones is that they don't provide enough amps to start the car on their own.

You connect them to your existing car battery and then let it sit for a few minutes while it charges your car battery. After that, your car may start but it pulls power from the car battery, not the "jump start" battery. All those really small ones are meant to do is to charge your actual car battery, not jump start the car.

I have one and that's how it works.

If you want one that can actually start a car on its own, then you need the bigger unit which has an AGM battery in it.

 

[Yaj Yak]

which one do you have?

 

[Bub]

im really interested in one of these just cuz of how small it is

https://www.amazon.com/dp/B015TKUPIC/?tag=tcg21-20

we have one of these at work, it's fantastic... i've started & run a 4.0 straight six with it (no battery)

https://www.amazon.com/dp/B000JFJLP6/?tag=tcg21-20

My dad has the small one. It's fucking bad ass. I have the large one that works great but not nearly as cool as the little one. I will upgrade eventually

 

[boostedguy05]

how shitty are your guys cars that you need to jump them all the time.

 

[Yaj Yak]

they are nice to have to help people out without having to get jumper cables out and open your own hood- which is beneficial if your vehicle can't get to the vehicle- i.e. boats.

i spent a silly of an amount of money on batteries for my gas poverty truck to hopefully have no issues.

 

[EmersonHart13]

We used to have one at work just to jump employees cars... Pulled in against a building is always more interesting to jump. When it died it didn't get replaced.

 

[Bub]

how shitty are your guys cars that you need to jump them all the time.

I have a Mustang /thread

But yes i do keep mine in the truck just in case

 

[Mr. SBF]

im really interested in one of these just cuz of how small it is

https://www.amazon.com/dp/B015TKUPIC/?tag=tcg21-20

we have one of these at work, it's fantastic... i've started & run a 4.0 straight six with it (no battery)

https://www.amazon.com/dp/B000JFJLP6/?tag=tcg21-20

My buddy has the small Genius one but it's the charger not the jump pack one. We used it on his newer Cummins with the 115v inverter to charge my boat batteries while we were up north camping on fishing trip back in August. That thing worked out fantastic, it made short work of charging all 3 of my boat's batteries.

I want to Buy both the Genius jump starter and the charger one as my Black & Decker jump box no longer capable of jumping after 3 years of use but it still works for charging cell phones and the flashlight.

 

[Pewter-Camaro]

I have this one..

https://www.amazon.com/gp/product/B0721MHSVD/?tag=tcg21-20

Got it for $45 last Black Friday and Used it multiple times on the GFs old Civic and my Mustang when it was having charging problems. Now I use it to power the tuning laptop and charge phones and such since we both don't drive pieces of shit anymore. I'd not hesitate to buy a higher capacity one.