Turn a Car Battery Into an Emergency Power Charger

This episode of Diy
Tryin is brought to you by the National Highway
Traffic Safety Administration. Welcome to Diy Tryin. Zombies! I’m Patrick Norton. I’m Michael Hand. I feel mocked. No, not at all. Yeah, I’m mocked. You’re an emergency guy. It’s good. If there’s ever a zombie
apocalypse or anything, people are coming to you. Yeah. It’s fine. If they can get over the fence. We’re going to talk a little
bit about emergency power. Part of the reason I
am an emergency person is because my mom lives
in hurricane country, my aunt’s been through
a couple of fires, I got friends in Southern
California that occasionally wake up and see walls a 70 foot
high flame outside their homes. –And earthquakes. And earthquakes. And hey, if you ever
lived up in the mountains and you suddenly realize
that you have no power, you may think you
yourself, gosh, I wish I had a big battery. And basically, what we’re going
to create is a big battery. I love this. This is one of Anchors 12,000
milliamp-hour batteries. It’s great. It’s awesome. There’s one of these in
my bag at all times now. I can charge up to three
devices simultaneously. It’ll deliver a max
of two amps, which is awesome like
for a day or two, or for a few days traveling. What we’re going to do here is
we’re going to take a full size group 24, group
27 battery, we’re going to put it in
an enclosure, we’re going to fuse it so we don’t
light ourselves on fire. We’re going to add in some
standard cigar lighter sockets or 12 volt power sockets to it
so we can plug things into it. And we might even attach some
kind of an inverter on top. And we’re going to talk about
a way to keep it charged. Because if you don’t keep your
emergency battery charged, you’re going to feel really
stupid in the emergency where you put something into
it and you’re like, huh, there’s no battery life. It’s preparation,
not panic, right? Yeah. That sounds like a saying. I like that. All right, let’s do it. All right. So while Michael’s
finding a wrench to fit this battery terminal,
these are really cool. These are like Marine
battery terminals. Sometimes if the
bolt goes this way they call them, like
military battery terminals. Tactical battery terminals. But the idea is that you
use one bolt to tighten the lead terminal–
and use led, not zinc– led terminal on the
battery, and the other terminal to attach your stuff. In this case, one size
is 5/16, one sizes 3/8. And we’re going to attach
all of our various devices with ring terminals
to the top here. Assuming, of course,
that actually works. There we go. Thanks, man. Remember kids, never
ever drop a wrench between the positive
and negative terminals. You get the exciting moment,
and possibly a semi permanently welded wrench. If you’re really
screwed up, you’ll manage to light the
battery on fire. I should probably explain
what’s going on here. This is a car battery. This is great, because it was
in my garage and I can use it. Car battery, though, are
not deep cycle batteries. Car batteries– there’s lead
plates inside a battery. Car batteries are
ones– their spongy. There’s a ton of surface area. And that massive
amount of surface area is what gives you the ability
to pull all that ampers. The cold crank in amps
out of the battery. What we want is big, thick,
deep led cells– or plates inside the battery,
pardon me, that are comfortable with discharging
and recharging, and discharging and recharging. But this will be
fine for our case. It’s just, it
won’t last as long. Exactly. Not as many cycles. Yeah. So if the zombie
apocalypse comes, scrounge some proper
deep cycle batteries. Or better yet, like six
volt golf cart batteries. Trojans are really nice. But if you’re
looking for something to get you through a
couple days after storm, keep the cell phones
charged, this will do fine. And this will keep you
from using the batteries inside your car. Because there’s nothing more
embarrassing than not being able to leave the ravaged,
flooded area because you can’t start your car. So the super-cool guy
version of this project is to get your ham
radio enthusiast on. Use Andersons’s
power pull system. This is like a power works
adaptor that’s pre-wired. It comes with 45 amp
fuses inside of here. It seems easier, actually. It’s really amazing. It’s a little
expensive to get into, right, because my crimper for
these connections are $40. This ready-to PS4 connect–
it’s really cool, right, because you can put
power in on one side. There we do. So now, you know, I should
be able to draw power off of the other three of these. They do some amazing stuff. Interesting. Yeah. West Mountain Radio–
I think it is, they do these
incredible power boxes with a rig-runner units,
which are all pre-wired and can manage sort
of like charging. And there’s a lot options here. We’re going to keep it
simple though with stuff you can find at your
local hardware store or local automotive store. So with that in mind, let me
pull the cool-guy stuff out of the way. So we’re going to
connect these two some cable I’m going to
use overkill cable music can gates 12 gauge should
be fine for this distance and actually, before we do
that, I should grab this. Fuse, fuse! So we’re going to
fuse both of these, because I’ve been hanging
around the Ham Radio Shop looking at Anderson
power pole connectors, and they double fuse everything. So to keep this super
simple, right, we’ve got our 12 gage
power sockets there. I’m going to crimp a 3/8
inch ring connector on here. Hopefully without
crimping my fingers. Then you’ll become
part of the circuit. You know, you can only
do that so many times. And good, used the right size. While I’m thinking about
crimping, and being crushed, and manged, and mabeled– mango? Mango. Hey, how do you avoid dying
in a traffic accidents? Seat belt. Good. Click it, or ticket, people. The NHTSA– National Highway
Traffic Safety Administration. Did I get that right? Something like that. Something like that. In any case, we’re the
people who basically want you to not die
in a traffic accident. This holiday, and
every single day, and every single
minute of the year. It only takes like
three seconds. Less than that. Yeah, if you look at
traffic fatalities– traffic accident fatalities–
with and without belts is like the difference between
being dead and being not dead. So don’t be dead, because we
want you watching the show, we want you making things,
we want you having fun. Because how can you die
trying if you’re already dead? Die trying, wear a seat belt. There you have it. We finished adding
our quick connects and hooked up the ring
connectors to the battery. Then came the holes. Fortunately, the
battery case is made of plastic, which makes
drilling it super easy. We screwed in our
power sockets and– Time for testing. We use standard– bought at
my truck stop power inverter. 12 volts in, 120
volts out inverter. Check light. Yes! Yes! Cool. Now we just got to figure out
where the battery tender is. Keep the battery charged
up without destroying it, we put on a battery
tender junior. It’s a little tiny wall socket,
it runs 750 milliamps charging. And it fits quite
nicely under the hood with the rest of our wiring. One last thing before
we go, you want to make sure you
secure your battery. And hopefully I’ll
actually do it right, because I always the
trouble with these– oh, that’s why it wasn’t working. So this is the battery strap
that comes with the case. And the trick with
these is to actually a, make sure this thing’s
clicked together properly. And the point of this,
right, is because if somebody picks your battery up and
tips this thing upside, it’s like 25, 50 pounds
of battery inside of here, which is going to
come spilling off and tearing all of your
careful wiring out. And what you want to do
is make sure you actually have this attached. So that’s in it’s teeth. And that’s going
to hold our thing. Is it still working? Yeah it is. Ladies and gentleman– DIYTryin.com. Youtube.com/diytryin. Please subscribe and
comment down below. Or– Share! Share. Please email this to
all of your friends who live in earthquakes,
swamp, mud, mayhem, snow, fire, hurricane, tornado, or just
general junk and mayhem country. Because we want
them to subscribe, just like we want
you to subscribe. Youtube.com/diytyin
or DIYTrying.com. I’m Patrick Norton. I’m Michael Hand. We’ll see you next
week on Diy Tryin. Hey, was that curring
salt I saw here before? No. We’re not making bacon. What are you taking about? Why– I caught him in a lie. A lie! [INAUDIBLE], please
make sure you sheath that blade before
you put the tool down. So we make sure to connect
the female quick connects so that we can quickly
connect it to our 12 volts. Hint, one of us connected the
wrong crimp to that before. I was going to edit that out. That was thoughtful of you.

84 thoughts on “Turn a Car Battery Into an Emergency Power Charger

  1. Don't worry, I'll find a way over that fence by doing things I've learned here.

    Or maybe do worry, since you don't want people getting over the fence?

  2. I like emergency stuffs, thanks for the project. However, I have some questions. How much does it cost for all of these? What is the charge and discharge times? Is it worth it? Again I love your projects. Thank you for DIY projects.

  3. Also if you live in Sunny Southern California, or anywhere else the sun shines on a bit, you can use a solar cell to trickle charge your battery.  Harbor Freight has a nice one for around $15.00.

  4. Patrick, are you a HAM or just like their toys?  Give me a shout sometime if you have your ticket, KF4UNG is my callsign.  I have been a fan since the early Screensaver days.  You two are great and I enjoy the show.

  5. Wow, can't believe this!
    Just yesterday I found an old 48-hr PSU video that patrick made and today this is posted. Amazing!

  6. How hard would it be to rig one of these up to keep the lights going in a house during a blackout? The house has the lights on a separate fuse circuit, would it be very complicated to rig up? Love the show, thanks Pat and Mike!

  7. I wouldn't mind seeing a ham radio-related video. I learned a lot while studying and got my license but never actually got a radio of my own. I think there must be a lot of cool things to do with that kind of equipment.

  8. I'll just assume that everything from 3:36 – 4:25… the "super cool" part of this project, actually means something, because you guys sure as heck didn't explain anything during that part. Apparently it's kind of expensive, with crimpers that cost $40… and it seams easier than something else…. and you can draw power off "the other three of these"…  but what the heck are you talking about? Seems like a pretty important part of the project to gloss over.

  9. I could have used that today. I ran my battery dead on the boat today, down river from my truck. Luckily two very nice people helped us. One who towed us to the dock, and another had a jump box. What I love about it the most is that  memorial day wwekend we were out on the boat, and some people were broke down and we stopped on our race against the light to tow someone to safety. I don't expect was goes around comes around but love seeing it when it does.

  10. Just need to throw it in a travel bag then you are ready for the upcoming Ingress Anomaly near you 😀

  11. hey patrick and michael. what about using super capacitors instead of a battery? maybe add a small solar panel to charge it anywhere in the field

  12. I was wondering whats wrong with using zinc terminals? Also i was looking on amazon and couldn't really find the power pole wire with the fuse already setup do you know if they are on amazon i'm probably just searching for them under the wrong name.

  13. Would you guys mind doing a video on building your own bike generator, emergency shake light, and a wind turbine? You guys explain projects really well and also help when it comes to finding parts so would appreciate if you guys considered doing these too.

  14. Can you connect a charger and inverter at the same time? To run your computer and charge the battery at the same time for example. ? Great video. Awesome!

  15. Any tips on picking an inverter? I need to be able to charge my cameras when on site so it'll be really useful, Also putting together a survival kit and it would be a great addition. 


  16. hi, The best info that I have read was on Volt daddy (just google it) Gotta be the most informative info on batteries and this same things that have found.

  17. I'm wondering why it's not possible to plug tender directly into inverter and create continuos power for as long as you need. Hmm?

  18. hi i have a hotdog cart , i need to run hot water in and have a small water pump in which i plan to use a car batt. and inverter to power i well only need to use once or twice every couple of hours, do you think i can get away with it this way or should i invest in a deep cell? like well a car batt, need to be charged more offen vs a deep cell even though i`m only turning the power on a few times a day.thanks for any input. Steve G.

  19. I have an electric bike, and it would be awesome if I could recharge it at home by pedaling!!
    (reading the makers guide to the zombie apocalypse…if you guys could make stuff from it, that would be so great) @[email protected]

  20. thanks for the info but i wish u did a setp by step of how u added each wire clip by clip,if i didnt have prier knowlge of wireing and stuff i wouldent od understood nothing.So in the future show the step by step process Im doing all i can to be prepped and have my family members each have the basic kits and radios so when cell phones all stop working we can talk to each outher n a emergency situation.
    God Bless fellas

  21. I'm a woman and I have no idea what you just did nor do I recognize the parts that you used except for the battery and the lamp that you lit up at the end. my question is……where do I buy this already made and just what do I ask For? when you can't make it, you buy it!

  22. It's a very good idea to make one of these. I made one using 2 RV batteries in parallel with a DIY charger (battery tender).

  23. I usually don't comment, this was a horrible tutorial. Don't list parts, doesn't say what the connections are. Talk way too much BS.

  24. What if im building a shack to hang out at in the middle of the woods, and i aanted to know if i could make something like this but with wall outlets to have some lights, like Christmas lights?

  25. When I want to learn something totally foreign to me, I would like to see step by step presentation, you may want to explain in the intro that I won't learn how to do it, you are just showing that it can be done. No subscription here. You need to be a bit more clear in your presentation

  26. Disappointed because you guys seem great. The DIY part – really, the information we came here for – was glossed through, leaving plenty of questions and few, deep answers. Further, a parts list would've been great in the comments.

  27. I have a garage ,but i don’t have power . I wanna make it a hangout place for me and my friends and i have a car battery so my question is . How i can use a car battery for light and my stereo ?

  28. Bruh my uncle knows about this but he made me make it. and I can't do it. What's the purpose of internet if I can't understand what I've been saying the whole time?

  29. This tutorial was pathetic. Too much chatting and rushing the visuals that were important. No explanations of what they were attaching to what. Please guys…frankly you come off as a bunch of guys who are high and forget to explain what you are doing. Embarrassing.

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