Jump Box Recommendation

[Liquid_wrench]

JNC 660 (by Clore Automotive) is the best jump box by far, they are heavy but last for 10 years. Starts my 4 cylinder diesel tractor when its completely dead. I can use it probably 3-5 times between charging.

 

[John T]

While sure quality matters but basically the modern jump boxes use lithium batteries to store energy so the more amp hours of stored energy the better to supply cranking amps at sufficient voltage to start a car. I’m not saying which brands I’m onlyyyy saying the more stored energy the better

Ps anything can happen anytime there’s tons of variables and unknowns. However in 50 years of farming and a used tractor dealer and jump started hundreds of vehicles I’ve never had a problem or caused alternator damage. But never say never it could happen next time or never happen

John T

 

[cumminstinkerer]

Over the past 50+ years of jump starting dead batteries, I have yet to fry an alternator, and many if not most have been GM Delco alternators. But then I learned a long time ago to match polarity before hooking it up.

I've been using a JNC 660 for the past dozen years or so and it has performed perfectly every time it was needed. It will even start a diesel engine.

you've gotten really lucky then! it is fairly common! I won't warranty one here at work if the customer tells me they jumped it when dead, I think the newer ones aren't as prone to it but the older style, 70s/80s will do it for sure!

 

[Eman85]

I have the large Noco jump box, I keep forgetting to look at the model #. No complaints, it's jumped everything I've asked it to jump including my diesel tractor. All of my family has the Scumacher boxes and they've served them well. I've worked on vehicles for decades, had my own tow truck, jumped a lot of cars with cables and boxes. I have never had an alternator or any other part of the car be damaged by jump starting.

 

[47fivewindow]

I don't use a jump starter because I've damaged my alternators in the past.
Does jump starting a car damage the alternator? Yes. Car jump start is a simple process, but it can damage your alternator if you do it too often.
I don't use one anymore. I will remove battery and charge it inside a warm place.
Cheaper than replacing the alternator.
A friend used a jumper starter to get his car started. Eventually he had to replace the battery and alternator.

Each to their own. I don't won a jumper starter.
I carry a AAA, but never had to call AAA for a jump.

Maybe the bad alternator was why the battery was dead?

 

[cumminstinkerer]

Maybe the bad alternator was why the battery was dead?

mine were functioning before the jump/pull start, I am not bad mouthing delco by any means just saying what I've had happen, since I went to the Chrysler ones on stuff i've had no issues, just a heads up to folks, I know it's worse on the newer stuff with regulator in the ECM and the fact you don't have the ability to pull start much new stuff!