Hi, I don’t know why I’ve been killing my car battery so often. The car doesn’t start anymore, so I have to go and give it a boost again. So by now hopefully I’ve become an expert I have some things to bring with me which include my super caps which I have charged to around 14 volts,
an extra 12 volt battery and My meter, let’s see if I can do it again This time the battery has discharged so far that absolutely nothing works. No lights nothing I have to check and see how far the battery has depleted. Okay, let me see how much juice is left in the battery What? F*** 0.7?! Probably my battery’s dead. At this level, I can’t connect my Super cap to this. This voltage will short my super cap running I don’t know like 500 amps through the wires. It’s okay, I’m gonna connect my puny battery to the big one using my alligator clips and watch the voltage too And hopefully it will slowly raise the voltage to something decent. Okay, here we go Let’s connect it up [CONNECTS] But the voltage jumps to 12 volts right away. Well, it’s slowly going down .
What does it mean? Let me disconnect it again No, the car battery charged four volts seems like [SIGHS] You know, it doesn’t inspire much confidence when your car battery voltage jumps up so easily I have a feeling the car battery’s dead F*** huh, I’ll leave it to be charged for a
while and see what happens. Maybe its so under charged that it jumps up easily. And while that’s charging, let’s look here. It seems like my light was on… But, I’ve never had problem with leaving lights on. I thought the car turns it off after a while Okay, the car battery now is around 9 volts so not bad It’s coming up just that I don’t know if it’s good enough to start the car anymore, but you know what? It means, it seems like I can connect my super caps to it easily without hopefully damaging anything Let’s see if I can jump-start the car. Okay, let’s carefully connect the jumper cable to my super cap. Careful I don’t want to short this thing there we go connect to positive It might shove a lot of current into my tiny battery too… Hopefully it’s not too bad Okay, let’s watch the voltage ready? Okay What happened? Seems like the super cap is discharged to some extent. It’s charging back up with the puny battery okay, I had charged the super cap to 14 volts, but [QUALITY CONTENT] OH S*** CRAP! What the f***?! S***, What happened? So my alligator clip wires just burned.
But it seems like they can still work a little bit Hopefully, my (CAR) battery is at 12 volts If I disconnect the battery, it’s slowly going down. I think my battery is no good anymore I had charged my super cap to 14 volts, but I also have parallel resistors which Slowly deplete the charge in it.
In any case the super cap has enough charge in it like It’s around 13 volts I’ll connect it quickly and jump in and jump start the car and hopefully it will start
and then I disconnect everything Ready, set, go! [GRUNTS] [DOOR SHUT] Damn it nothing happened. What’s the voltage? 5 volts damn it!,
it just sucked the entire juice out of my super caps and didn’t start. The super cap is at 5 volts now
slowly charging with my puny battery through the broken alligator clips, damn it! Well, it’s charged now. But I wanna see if my super cap can actually deliver much current [Strikes alligator clips against each other repetitively] Not bad, eh? Maybe the connections are not too good [Strikes again] Ok, it seems like everything is charged to the same level around 12 volts. Let’s jump start again, Ready…? [Car engine rattles] Damn it, not enough juice But it’s almost doing it Okay, let it charge again You know what? I’m gonna directly connect the super cap
to the battery lid so that they reduce the line resistance as much as possible Oops, I shorted something. Okay, super cap is directly connected and the battery voltage is now at 12 volts, let’s jump start again [Car Engine Rattles] *RIP CAMERA* Damn it!, the camera fell [laughs maniacally] Something smells here though.
I think my alligator clip wires are Burning further every time I try to jumpstart Uhh, they still work. I have a feeling that 12 volt doesn’t quite cut it. I have to go bring my drill battery. 12 volt drill battery and put it in series with this puny battery
and hopefully raise the voltage to 15-16 volts, and probably that will jump start the car here are the batteries An engineer that has everything except the proper battery booster Okay, I’m gonna put the drill battery in series with the puny battery and the only thing that really limits the current into this is the resistance of the alligator clip wires So hopefully the current is not too big Okay, Let’s carefully connect the (wires).. As soon as the voltage reaches something decent The wires are getting hot [QUALITY CONTENT] S***! Let’s leave it. But as soon as I disconnected the voltage drops quickly, so it seems I don’t have much time before everything burns So I’m going to connect it and go run in and jump start and come back and disconnect everything Ready, let the voltage go up first Okay, go go go Ready Set [RUNS AND GRUNTS] GO! [ENGINE FINALLY STARTS] [ALLIGATOR CLIPS PROCEED TO MELT] [BLOWS] STOP STOP [COUGHS] S***! Waa [SIGHS] Look at the wires.
Well, they helped Now the question is;
Can the car battery get charged and stay charged? I’ll, I’ll let the car run for like 15 minutes and see what happens Well the car is running for now I have to leave it for another 10 minutes to see if the car battery gets charged But if it’s broken Then I at least know how to jumpstart again using my ghetto setup and get it somewhere to get a new battery You may ask why didn’t I put a bunch of double-a batteries in series like I did before the problem Is that if the car battery is actually dead then those double-a batteries won’t be able to charge the car battery and the car wouldn’t start and I make much more smoke this way. Anyway, well, it’s been running for fifteen minutes now So if the car battery is not dead it should restart again, but I highly doubt it Let’s try it again Prayer [TRIES TO START] [ACTUALLY STARTS] It started.
IT STARTED! DAMN IT!!! [QUALITY] IT F*****G STARTED!!!! Agh. I don’t have to buy a new battery. Let’s try one more time [TRIES TO START] [CAR STARTS] [LAUGHS MANIACALLY] So, I guess the car battery was not dead it was somehow super discharged to close to 0,
I’ve never seen those bad I thought if it gets close to 0, the car battery dies and doesn’t charge up anymore. But hey It came back. Well, I’m guessing there might be some permanent damage, but it’s still working You know what third time is the charm it’s been off for like two minutes now. Let’s turn it on again [TRIES TO START] [CAR STARTS] [LAUGHS] Hihihihihi I guess those alligator clips didn’t burn in vain. I think I should really check something what did discharged the battery that far down? Maybe something is leaking and drawing a lot of current when the car is off. Okay, I’m gonna measure the current from the battery Via this clamp meter? I don’t know if you can read backwards, but it’s around 0.3/0.4 our baseline and if I measure the current its around 0.2 / 0.1 So maybe something is drawing a little bit
around 0.1 / 0.2 amps which is not much to Like kill the battery.
It will take a long time to kill a battery With maybe 0.1 or 0.2 amps of current for example if this is a hundred amp hour battery
with point one amp, it will take A thousand hours to discharge this battery now now I unlock the car and the current is zero Which means that it’s drawing around 0.3 / 0.4 amps compared to the baseline I’m gonna turn on one of their ceiling lights and see how much current it draws with only one of them on its drawing -0.4 which means from the baseline is
around point 0.8 amps of current So if I leave one of those lights on it could discharge the car battery much faster So I think that’s probably what happened. It seems like when the car is off There is no significant current,
discharging the battery But I probably left these lights on and usually I go drive the next day Which means that the car battery is not Depleted much, but this time around we didn’t drive the car for a couple of days which probably just killed the Battery Yeah, don’t forget to turn off all the light and everything in your car. But the question is: Would it turn on again? [CAR STARTS] [MORE LAUGHING] [UNIBROW OUTRO] [UNIBROW OUTRO]
(please buy electroboom t-shirts) [UNIBROW OUTRO]
(they’re awesome!)