Jump start battery packs

[flatbutt]

Can't find a prior thread on this so any recos?

https://products.bestreviews.com/best-jump-starters?yb&cid=335245714&aid=1212761501228405&eid=&tid=kwd-75797724327816:loc-190&ul=99024&mt=p&n=o&d=c&dm=&dt&sn&adid=&k=jump%20starters%20reviews&p=&pc=&ap=&msclkid=4a1ad60bb7461761fa7eb5bf85145ad7&utm_source=bing&utm_medium=cpc&utm_campaign=Prospecting%202%20(full)%20-%20Bing&utm_term=jump%20starters%20reviews&utm_content=Jump%20Starters

[blucille]

I'm sure based on manufacturing processes and tendencies today, each of these products are probably made in the same factory with the same bits and pieces, with each "brand" or "manufacturer" tweaking the specs a little.

With that being said, I have slowly been converting my stuff over to Noco. They seem to be a step up from the others. I have their battery maintainers and like them. And I have a couple of their jump packs and they are a higher quality compared to the other units on that web page.

I previously bought a couple of the smaller, less expensive boost packs that did ok with a low car battery that needed a boost....but a stone-cold - dead battery the boosters just didn't have enough gumption. The Noco unit was able to jump my completely stone-cold dead car battery on 2 occasions.

My only suggestion is to not leave any of the packs plugged in the the wall outlet continuously. I've heard too many horror stories of various battery packs, and then stuff like the kids' hoverboards and battery powered bicycles causing house or garage fires. Once they are fully charged, unplug them. Better yet, put the chargers on a timer or a wifi enabled outlet switch so you don't overcharge.

[jhynesrockmtn]

I just had a bad experience with these style of packs. I was at a friends funeral and must have left the accessory feature on when I went back to close the windows. Two attendees came with this size of jumper pack that were fully charged. Neither one did anything but a brief engagement of the starter. A guy came over with good old fashioned jumper cables that did the trick right away. Now, I don't know the brand and they looked similar to each other so there may be brands of these that work well but my limited experience was not good.

[nota]

the ones that can burn ''work'' better for starting as they flow more current quicker

the safe ones LiFeP need bigger batterys to work at the same current flow

btw the units last longer at 80% charge to 20% discharge and are safer if never at full charge
leadacid battery work 100 to 50% CHARGE for long life

[jyl]

I have a couple, keep them in the cars, they’ve always worked fine. Random brands bought off Amazon, didn’t buy the cheapest or the priciest. One looked like a Norco, different brand, same actual maker I suspect. You do want to check them occasionally to make sure they’re still fully charged. I don’t know of one that can be left connected to the car (to stay fully charged), but that would be a good feature to have.

[matthewb0051]

We have one in all of our Land Rovers: DBPOWER 800A 18000mAh Portable Car Jump Starter (up to 7.2L Gas, 5.5

The link in post #1 works but not when you try to get to this model. I believe we paid around $65 each.

My wife's Discovery 4 battery died totally a couple of weeks ago when we had some really cold days. This thing wouldn't bring it back from the dead though. But for most times they have worked a charm.

[ckcarr]

I have one of those in each of my vehicles. Whenever they would go on sale I'd buy another. I actually needed one once when my Jeep battery failed and it worked perfectly. Plus they seem to hold their charges forever.

[flipper35]

We have two. Neither will start the lawn tractor if the battery is low. One sits in the car and is connected to stay charged all the time. The other I charge as needed. One is a Caterpillar the other is a well known brand but I don't remember off the top of my head. The Cat one does work well for lighting the trailer interior through the 7 pin connector adapter. Neither are Lipo or LiPoly.

[Gooch1971]

[Hugh R]

Important tidbit, if the battery is completely dead in the vehicle, many of the jump packs won't engage their circuit if they can't check for polarity, and will be essentially dead. Some have a dead battery override switch with a big override button and a warning sign that polarity check is disabled in this mode. You want the one with the override, but be aware of what its doing.

[KevinTodd]

I have two and they have both worked flawlessly multiple times, for jumping weak and/nearly dead batteries as well as providing power to my mobile bar when parked. Both units are Chinese; the actual jump box was about $119, while the shore power unit was about $250. These things can sit idle for months and not lose any capacity at all, so for me they're a no-brainer. I keep the jump box handy and in whichever vehicle I'm using as a DD.