Batteryless Jump Starter First Look Case Study 

Jerry, thanks for all the work you do. I'm a little confused as to why you say these are so expensive. The one you are testing can be had for 150-175 bucks shipped. I bought the 800 amp version (branded Schumacher, same manufacturer) for 200 bucks shipped a couple weeks ago. Considering these will last well over 10 years, they are a bargain compared to the lithiums. The Sealey brand is the same booster as well and are a bargain on EBay. From the comments, I don't think people realize how strong and flexible these are. I can charge my big 800 amp model in about 5 minutes off of an old dead motorcycle battery that has been sitting in my garage for months! It would be rare under normal street circumstances to be trying to start a car whose battery is under 5 volts. That means you can charge these from the "dead" battery. That is game changing! Or carry a small USB battery with this if you are worried about a charging source. Small solar panel will also work. I would say in 90% of cases, though, you can just charge this from the dead battery you're about to jump start! These can also easily start an engine with no battery in bypass mode. They are extremely powerful. There are dozens of videos on YT showing these in action. My choice by far!

I think that the manufacturers needs to have a combined product when it comes to this tech of battery and supercapacitor to get the benefits of both. Some kind of switch that kicks in the battery after the initial cranking. Also the same in reverse when charging. This is however maybe not as easy as I think, but it would use the best of both technos. The great thing with supercaps are that they have a better discharge than a chem-battery. That is something that have to be used better in battery powered machines/systems. A couple of well placed caps can spare battery and prolong batterylife in theory. As one may see if the car could use the caps when starting and the battery only as a backup it could save batterylife. A great thing in cars that generally speaking have very undersized batteries and alternators.

I have the 800A Sealey E/START branded version of that (looks identical). And yeah, pros and cons. A nice thing is that you can charge it off a smartphone battery pack and not just another boost pack. And the end of the day tho I much prefer my lead acid 12/24v lead acid power pack (it claims 3000 peak Amps, no idea if that's the case, but the thing just cranks and cranks and cranks).

As far as lithium jumpers, I'd like to see the Weego 44 and 66 tested. I think they are the best out there. They are 12k and 18k sized and use premium batteries. They have great (5-600 lumen) flashlights and are IP65 rated for water and dust resistance.they do not exaggerate their specs and have an 18 month warranty and outstanding customer service according to the reviews. They have big cables that are a completely different design that most. I'm getting the Weego 66 to work along with my Schumacher DSR109 capacitor starter to cover all situations.

I actually have a hybrid product, it's a 700A 1750F supercap jump starter with a 6Ah battery backup. Extremely handy!

with a small crank you could charge and discharge the caps as needed and never have to wonder if your battery boost pack was charged

I bought a cheap one.. it started my bike after I ate.. at the restaurant. Took 15 minutes I was so full... but it worked! Started a friends car.. and it was a cheap one.. so yes!! You buy one to get you out of a bad situation.. go straight home most likely and buy a new battery. Now if I worked at a car dealership.. maybe a better one will be worth the trouble and expense. But this cheap one is cracked and it holds a charge bouncing around in my bike saddlebags.. two weeks and it was still fully charged.. the cheap one.. was the one he said was not a good one. Your battery can be just to low to start.. and you'll be fine. Plus I lost power at home.. I charged everything with my cheap one..... he is giving you the best.. and I agree with him. But down in south Texas.. the 30's is not often. Dead battery is not common either remember. So... there's that to consider.

It's worth it if you go to a lot of auction yards where they allow the cars to be started. Some of them are dead and a battery boost pack just won't cut it if you're jumping 30 cars in a day.

The USB charge abilitiy could be useful if the car battery is completely dead, but you have a USB charger for your phone (not another boost pack)

I has 3 battery jump starters from a well known brand not cheap, and the first time I needed to use the 1 in my partners car to jump start it failed, I charged these up monthly to make sure they kept charge and all the lights said good, until I tried to jump start the car battery was stuffed in the jumper, so I got the 1 out of my car, I had exactly the same problem, it was 12 month warrantee and it was 13 months when I needed to use it, called the company they said its out or warrantee so no replacement or refund, the third 1 is still working, for how long who knows, so I think the capacitor idea is no so expensive if it does the job every time

Tx for the vid. I was curious about this, because i saw vids where people replaced their battery with capacitors, that seemed to work good.

Hi! Is there a specification for the capacitors? I sadly did not do physics but as a highway engineer I sort of understand the operation, the energy is in the caps not the battery. I am looking to make a unit to kickstart my Mini into life without waiting an age to charge so can you sort of provide me with a shopping list for the caps maybe permutations to give the clout of a lead acid starter..... ie x of yyyyy capacitors or y of zzzz capacitors. Many thanks

Bombardier has recently removed there battery electric start system on there snowmobiles to a capacitor starter. You have a snowmobile sitting overnight or days in freezing temps outside and the sled fires right up with there capacitor starter.

Very interesting thing. Can you please test it on cold (-25C or less) engine? In more warmer weather jump-starter typically just don't needed. Will this thing start engine with dead (about 10.8V or less) battery?

Why would you remove your positive cable? You could potentially short the "dead" battery positive post with the ground of your vehicle with a tool. If you get it removed without doing so and start your car with a boost pack, you might accidentally short the unattached positive battery terminal to the chassis ground while your vehicle is running and damage your charging system. I think the cap boost pack is an expensive gimmick for now. Not nearly the energy density of lithium, yet.

is it really a good idea to remove the positive terminal during jump start rather than ground terminal???

Well done... Been waiting for this review! The truth is out there... keep it up!

Interesting. I didn't even know those existed.

The important test would be the leakage current. How many days the capacitor would stay charged? Or are you expected to charge it just before the use?

Jerry, would you try to charge the capacitor with a battery that would no longer crank over the engine, but would possibly be able to slowly charge the capacitor? I am just curious whether this would work in real life and thus start the engine?

i have one with a small solar panel and hand crank generator.. more reliable than having to recharge battery jump starter every few months..

JERRY YOUR THE GREATEST WOOOO!!!!!!!!!!!!!!!!!!!!!!!!!

and it takes like 4 hours to change from usb when the manual says 15 minutes

I just bought a SCOSCHE PowerUP 700 for $129....Can you please do a review on it?? Much thanks.

I cant wait to see the next video. Very interesting stuff.

nice video I want to know from where did you get your MAC multimeter I TRIED TO SEARCH THE WEB FOR THAT MODEL BUT I DIDN'T FIND IT. IS IT DISCONTINUED by MAC IF YOU HAVE A NEW ONE I WANT TO BUY IT

can probably diy one for cheap if it is just a capacitor or set of them

Is it good for cold climates?

It's capacitance doesn't seems high enough. I would had put double the capacitor power reserve...

Seams it would only work if you had a battery with a weak or dead cell. I doubt it has enough capacity to "charge" a low battery enough to crank an engine.

Please turn that music off or adjust it so low level that it is possible to watch this and hear you. Thanx.

Wonder if it will start my diesel car on a cold day when the battery is flat. First thing when starting a cold diesel is to let the glow plugs glow for maybe 5 seconds and i would imagine that this jumpstarter would already be somewhat drained as glow plugs draw a lot of current. (My glowplugs are approx 1 ohm, which would mean that they draw 12A, each for a total of 48A).

You may have a cheap power bank for phone and just use that to charge the capacitor? I have a power bank myself (ec technology)

I tried one and it sucked ass . it charged but too weak to start a 2.4 L volvo s80 in -10 C

is it ok to keep the capacitor charged up during storage?

So did you do a full test with my numbers on this unit and on a flat frozen battery?

Crazy tech... Next you'll be telling us they have electric cars and that vegetables can be grown with soil!

So you only get 1 shot at starting your vehicle then you need to re charge it??? I'll stick to battery base boosters.

Sealy in UK do a 600/800/1100 versions good prices 240volt not 120volt...

It would be interesting to see how much you lose current with the alligator clips. Have you or could you test it? Like first do a normal load test and then use a apecial cable that has bolted connections instead of the alligators

Do a suoaki Battery review

How long will it hold a charge. Lets see I need a fully charged battery to charge this unit up to jump start a dead battery. If I charge it up will It be ready six month from now when I need it.

Interesting idea using capacitors. Most vehicles start in less than five seconds unless you have an Arctic Cat atv HAHAHA

you wouldn't want to get stuck miles from anyone with this as your only option. 1 hit wonder then if it doesn't work you're walking

Batteries are energy storage devices. Caps are energy storage devices. So WTF is the big difference? As an Electronics Engr is see nothing

#WALKAWAY vote REPUBLICAN!!! 45 2020

Maybe add a solar panel to charge the capacitors.

Just one thing, the current those ultracapacitors put out could damage wiring and computer in your car!!!

Not worth the price of entry If you need more that one start your screwed with this unit Why fouls you want just one try at starting? Makes no sense to me Pass

seems like junk