1 00:00:00,080 --> 00:00:06,319 like many of you we've spent a lot of money on batteries over the years these 2 00:00:04,400 --> 00:00:10,320 red bricks for our cameras for example cost a whopping 3 00:00:07,880 --> 00:00:15,120 350 dollars a pop but that isn't even the biggest problem 4 00:00:12,240 --> 00:00:18,240 with them you see even rechargeable lithium batteries are consumable in a 5 00:00:17,359 --> 00:00:24,240 sense after a few years of regular use this guy right here gets us a whopping 20 6 00:00:22,480 --> 00:00:27,039 minutes of battery life that's on a good day which got us 7 00:00:26,080 --> 00:00:32,000 thinking the housing's still fine the battery 8 00:00:29,519 --> 00:00:37,360 management system or bms which handles charging and safety that's fine too so 9 00:00:35,120 --> 00:00:41,120 would anything prevent us from just swapping out the tired cells inside 10 00:00:39,760 --> 00:00:44,640 saving us some money and keeping needless e-waste out of the landfill 11 00:00:43,040 --> 00:00:49,280 well you've already seen the title of the video so i think you know the answer 12 00:00:46,719 --> 00:00:53,520 to that but what you don't know is just how deep this twisted rabbit hole goes 13 00:00:52,559 --> 00:00:58,879 or who our sponsor is i fix it though in fairness you might 14 00:00:56,960 --> 00:01:02,879 have seen that one coming is the battery in your device not lasting as long as it 15 00:01:00,559 --> 00:01:06,240 used to looking for a new project ifixit has you covered stay tuned to the end of 16 00:01:04,640 --> 00:01:09,799 this video to learn about their battery replacement kits 17 00:01:16,479 --> 00:01:22,479 let's get this out of the way while we have dabbled in it before diy battery 18 00:01:20,080 --> 00:01:25,840 repair can be very sketchy especially with lithium cells and we would strongly 19 00:01:24,320 --> 00:01:30,799 recommend leaving this sort of work to a professional but the difficulty of the 20 00:01:28,400 --> 00:01:34,079 work is only part of the problem let me show you what i mean 21 00:01:32,079 --> 00:01:39,520 most lithium-based packs have three basic components a case to protect the 22 00:01:36,720 --> 00:01:45,360 sparky bits the pack itself made up of individual cells they are 18650s in this 23 00:01:42,320 --> 00:01:48,399 case and a battery management system or 24 00:01:45,360 --> 00:01:50,479 bms the bms is the brains of the whole 25 00:01:48,399 --> 00:01:53,280 operation monitoring and controlling the charge and discharge rates of the 26 00:01:51,920 --> 00:01:56,799 connected cells now good ones will contain a host of 27 00:01:55,119 --> 00:02:00,640 safety features like overcharge protection over current protection short 28 00:01:58,719 --> 00:02:04,960 circuit protection and the like meaning that they act as your main line of 29 00:02:02,479 --> 00:02:08,959 defense against catastrophic failure but they aren't the only one the second 30 00:02:06,880 --> 00:02:12,319 safety is built right into the cell itself in the form of a pressure relief 31 00:02:11,120 --> 00:02:16,640 vent that it's right here on the positive terminal it's designed to vent 32 00:02:14,800 --> 00:02:21,040 the waste gas that's generated by internal short circuits that naturally 33 00:02:18,480 --> 00:02:24,560 occur as the cell ages this prevents the cell from pressurizing creating an 34 00:02:22,800 --> 00:02:28,560 explosion hazard you've probably experienced cell bulging or expansion 35 00:02:26,720 --> 00:02:34,400 before if you've got a really old laptop or phone it's a similar idea except that 36 00:02:31,239 --> 00:02:35,519 18650s have a rigid outer housing which 37 00:02:34,400 --> 00:02:40,560 won't just puff up so with all that out of the way 38 00:02:38,640 --> 00:02:44,319 this doesn't look so hard let's head to the shop 39 00:02:42,400 --> 00:02:48,560 since our original intention was to replace the cells inside many of our 40 00:02:46,400 --> 00:02:54,000 aging battery packs not just make a video about it we snapped up this beast 41 00:02:51,360 --> 00:02:58,800 of a 30 kilogram spot welder off of craigslist for about 150 42 00:02:56,720 --> 00:03:02,879 seemed like a good investment but it didn't have the correct leads on it for 43 00:03:00,560 --> 00:03:07,920 battery spot welding so 70 dollars worth of amazon shopping later and we've got a 44 00:03:05,280 --> 00:03:10,959 pretty solid spot welder at our disposal we'll have a link down below to the 45 00:03:09,200 --> 00:03:17,280 leads that we used here and compared to our diy lead acid battery spot welder um 46 00:03:14,480 --> 00:03:19,920 so far this is working a lot better before we begin let's talk safety 47 00:03:18,640 --> 00:03:24,239 precautions we've got our fire extinguisher though that's unlikely to 48 00:03:21,840 --> 00:03:28,080 do much of anything with a lithium fire so we've also got our fire safe 49 00:03:26,239 --> 00:03:32,159 workstation here with a fire brick that we'll be doing our actual welding on 50 00:03:30,000 --> 00:03:36,720 gloves and tongs in case we actually need to handle a ruptured cell a sand 51 00:03:34,879 --> 00:03:42,159 bucket with additional sand to dump over top of it our fume hood as well as 52 00:03:40,239 --> 00:03:46,480 a pre-propped door for us to take that sand bucket and rip it outside in the 53 00:03:44,400 --> 00:03:51,440 event that we need to get rid of it next up let's talk about preparation for our 54 00:03:49,040 --> 00:03:55,439 pack because we have multiples of these red battery packs we actually 55 00:03:53,200 --> 00:03:59,439 pre-disassembled one for you guys so that we can get going right away but the 56 00:03:57,599 --> 00:04:04,799 process is simple you just want to desolder the leads that run between the 57 00:04:02,000 --> 00:04:08,959 bms and the battery pack itself which includes the power leads the balance 58 00:04:07,200 --> 00:04:12,959 charging leads which are these guys right here as well as this thermistor 59 00:04:11,760 --> 00:04:17,919 which is going to monitor the temperature of our pack assuming that we 60 00:04:15,280 --> 00:04:22,639 are able to actually reassemble it with the new bms one other critical safety 61 00:04:20,079 --> 00:04:25,520 measure is disposal of our old cells we're going to go ahead and cover up all 62 00:04:24,240 --> 00:04:29,360 of the contacts with something non-conductive like electrical tape and 63 00:04:27,919 --> 00:04:33,280 put it into our sand and you might be thinking to yourself well gee Linus that 64 00:04:31,360 --> 00:04:37,440 pack probably only has one or two bad cells in it why don't you just swap 65 00:04:35,120 --> 00:04:42,400 those out with good ones no we don't do that we never ever do that there's lots 66 00:04:40,720 --> 00:04:44,960 of electrical engineering reasons not to do it don't 67 00:04:44,000 --> 00:04:50,240 do it all new cells of course getting your hands on new 68 00:04:48,400 --> 00:04:53,120 cells is not always the simplest thing ever and you need to make sure that you 69 00:04:51,600 --> 00:04:56,400 do your due diligence to ensure that you're getting genuine cells rather than 70 00:04:54,960 --> 00:05:01,759 counterfeit ones which can have issues with reliability capacity and safety we 71 00:05:00,240 --> 00:05:07,360 picked these up from a local vape shop that we have enough of a relationship with to trust and what collin's doing is 72 00:05:05,440 --> 00:05:11,199 he's checking them not to make sure that they're genuine but rather to make sure 73 00:05:09,600 --> 00:05:15,199 that they are all at a similar enough voltage that when we go and 74 00:05:13,360 --> 00:05:17,680 spot weld them together they're not going to suddenly 75 00:05:16,400 --> 00:05:21,280 equalize yeah and as good we did that because i 76 00:05:19,520 --> 00:05:25,039 found five cells that are low so these are 3.2 volts where everything else is 77 00:05:23,280 --> 00:05:28,400 3.491 depending on how long it's been sitting 78 00:05:26,320 --> 00:05:30,639 in inventory it might have drained more or less 79 00:05:29,520 --> 00:05:35,120 and we don't want that our next order of business is to arrange 80 00:05:33,680 --> 00:05:38,560 the cells in exactly the same orientation before we spot weld them 81 00:05:37,360 --> 00:05:43,440 together and there are a number of ways to do this you can get these little 82 00:05:40,639 --> 00:05:48,560 spacer kits off of amazon but unfortunately for us if we compare to 83 00:05:46,000 --> 00:05:53,759 our assembled pack these leave a space as advertised and 84 00:05:51,120 --> 00:05:57,680 the original pack does not so we might have to improvise a little bit if we 85 00:05:55,360 --> 00:06:02,560 want to try to fit our battery into the old housing uh one idea we had was to 86 00:05:59,919 --> 00:06:08,240 sacrifice one of our batteries and use it as a kind of holder 87 00:06:05,280 --> 00:06:10,960 here we go for our new cells and then 88 00:06:09,360 --> 00:06:14,560 pop it out when we're done maybe cut it away while we while we spot weld it i 89 00:06:12,720 --> 00:06:19,360 don't know another complication that we have to overcome is that we are using 90 00:06:16,800 --> 00:06:23,520 generic nickel strips there we are make sure you're using 91 00:06:20,960 --> 00:06:28,960 genuine nickel by the way while red is using obviously some pre-cut ones that 92 00:06:26,639 --> 00:06:33,680 look a little bit different what do you lean towards colin 93 00:06:30,560 --> 00:06:35,440 using this boy as a as a holder i think 94 00:06:33,680 --> 00:06:39,039 we should snip it in half yeah that way we can solder the top side flip it over 95 00:06:37,759 --> 00:06:44,560 and solder the bottom side while still having support on both sides i really like it let's run it through the bandsaw 96 00:06:46,240 --> 00:06:50,479 so these are all positive terminal up 97 00:06:49,759 --> 00:06:55,280 boop boop oh this is gonna work okay 98 00:06:53,680 --> 00:06:58,000 i think what we're gonna do is more tape we're gonna put them on and then yeah 99 00:06:56,800 --> 00:07:01,280 and then we'll wrap them and then i think we're in really great shape column 100 00:06:59,919 --> 00:07:05,280 was like i don't think we're gonna fit this back in the original housing and 101 00:07:02,960 --> 00:07:10,639 i'm like i wanna try my life's in your hands colin actually all of our lives 102 00:07:07,360 --> 00:07:12,800 are in your hands Linus all right 103 00:07:10,639 --> 00:07:18,880 that's not good i'm kind of imagining that i hold this and you wrap the tape 104 00:07:16,880 --> 00:07:22,400 there we go i have seen dumber things now at this 105 00:07:20,960 --> 00:07:28,479 point we could start laying down our nickel strips and spot welding everything together but if we make even 106 00:07:25,680 --> 00:07:32,720 one mistake we are a evacuating this room and b starting our project 107 00:07:30,720 --> 00:07:37,759 completely from scratch so we want to go ahead and do some test welds now we got 108 00:07:35,440 --> 00:07:41,440 this all dialed in for a single layer of nickel strip over a 109 00:07:39,840 --> 00:07:45,440 test cell by the way shout out to the vape shop again for 110 00:07:43,120 --> 00:07:49,680 giving us a bunch of testers here but what we haven't tried is two layers so 111 00:07:48,479 --> 00:07:54,800 i'm gonna play around with this a little bit and see if we can get a nice clean 112 00:07:52,000 --> 00:07:58,400 spot weld on some of our test cells here for spot weld there's a little 113 00:07:56,960 --> 00:08:03,520 bit of spring tension in this see we want that spring to go down then we're 114 00:08:00,639 --> 00:08:03,520 gonna go ahead and 115 00:08:03,919 --> 00:08:10,160 it's definitely on there let's grab another one and let's try two layers you 116 00:08:08,000 --> 00:08:14,479 should usually do two hits i oh oh i will i will i will don't worry so we're 117 00:08:11,759 --> 00:08:18,639 doing a weld heat of 690 a ramp speed of three and we think this means 14 118 00:08:16,720 --> 00:08:22,400 milliseconds let's see how it handles two layers at our current setting i 119 00:08:20,319 --> 00:08:26,560 think it will be fine you know what i don't think we have to 120 00:08:23,520 --> 00:08:28,720 change anything colin oh no it popped 121 00:08:26,560 --> 00:08:33,279 okay try again just uh clean up the tip 122 00:08:33,279 --> 00:08:39,640 okay now do that 32 more times 123 00:08:40,000 --> 00:08:45,839 okay this is pretty sweet i'm having fun now this is where things 124 00:08:43,839 --> 00:08:48,959 get a little bit interesting we're about to do our second layer 125 00:08:50,000 --> 00:08:56,399 uh colin you want to have a look at this and see how it's going i need a clipboard so i can grade you yeah thanks 126 00:08:54,880 --> 00:09:00,080 it looks like a battery pack this is the part i'm most nervous about because we 127 00:08:58,240 --> 00:09:03,440 need to do four cells in a row and this is where we're first going to connect 128 00:09:01,839 --> 00:09:09,040 positive and negative terminals so this is where we find out how collins uh 129 00:09:06,160 --> 00:09:14,399 measurements went hoping for no sparks no sparks colin yay you sound 130 00:09:12,880 --> 00:09:18,160 less enthusiastic than me were you hoping for some sparks the thing about 131 00:09:16,560 --> 00:09:22,000 super high current is that it doesn't just melt your nickel and your cell 132 00:09:19,839 --> 00:09:24,880 together it also melts your tips if they're not great tips you know what 133 00:09:23,600 --> 00:09:29,839 maybe we won't have the link to where to buy these down below they're really not that great okay great i'd also like to 134 00:09:28,240 --> 00:09:33,120 take a moment to point out that i'm a total amateur at this so if you're 135 00:09:31,600 --> 00:09:38,399 looking to actually build your own battery packs there are lots of other 136 00:09:35,360 --> 00:09:41,519 better resources out there 137 00:09:38,399 --> 00:09:43,680 yep sounds a matter of time ah fudge 138 00:09:41,519 --> 00:09:47,360 well we popped one oh 139 00:09:45,760 --> 00:09:50,880 i think i didn't clean the tip often enough well that was a bummer but the 140 00:09:49,279 --> 00:09:54,959 good news is the video is not over we had a backup plan because we knew going 141 00:09:53,040 --> 00:09:58,560 into this that lithium batteries are much much more volatile than the nickel 142 00:09:57,120 --> 00:10:02,800 metal hydride batteries that you might find in your parents old power tools not 143 00:10:00,480 --> 00:10:06,480 only are the cases much thinner which improves power density but makes them 144 00:10:04,640 --> 00:10:10,959 more susceptible to rupturing but the lithium inside them is 145 00:10:08,880 --> 00:10:14,480 chemically much more reactive you guys have probably seen the handful videos on 146 00:10:12,720 --> 00:10:19,120 the news of electric vehicles bursting into flames that's a lithium battery 147 00:10:16,480 --> 00:10:23,279 fire and it is no joke not only are they essentially unextinguishable but the 148 00:10:20,720 --> 00:10:26,640 smoke they emit is toxic too we actually dumped more sand on that and moved it 149 00:10:24,959 --> 00:10:30,560 away from the door next to the concrete wall there will be no fire there 150 00:10:29,440 --> 00:10:35,600 so here is what our backup plan is rather 151 00:10:33,040 --> 00:10:39,920 than trying to tackle a 16 cell pack we're gonna take one of our smaller sony 152 00:10:37,920 --> 00:10:44,959 style batteries which has just four cells and uh try to rebuild this one the 153 00:10:43,519 --> 00:10:48,959 silver lining in all this is that now you guys get to see the entire process 154 00:10:46,880 --> 00:10:54,480 so there you go we've pulled the housing off of the bms here i'm sure all of the 155 00:10:51,440 --> 00:10:56,560 like diy ebike battery folks are 156 00:10:54,480 --> 00:11:00,560 have already left their comments wow they're using 157 00:10:57,680 --> 00:11:06,480 really pin or nickel strips on look at this the minimum possible amount of 158 00:11:03,839 --> 00:11:09,360 nickel was used backup sand bins right here yeah we got it all right thanks 159 00:11:08,560 --> 00:11:16,240 colin anger level it's 160 00:11:13,279 --> 00:11:16,240 so high right now 161 00:11:20,000 --> 00:11:26,560 well we're down to four matching cells so this will be our last attempt are you 162 00:11:24,720 --> 00:11:29,839 guys ready to go again yeah i've got a good feeling about these batteries 163 00:11:31,920 --> 00:11:36,800 what we need to check now is if 164 00:11:34,959 --> 00:11:42,160 my leads are going to line up with the bms though this guy is going to go here 165 00:11:39,839 --> 00:11:48,480 and this guy is going to go here so i'm just going to trim those down here we go 166 00:11:45,600 --> 00:11:52,959 and then i'm going to double check again to make sure i snip off the right part 167 00:11:50,720 --> 00:11:56,800 i'm okay i'm okay boys you know what now's a good time to throw it into the 168 00:11:54,560 --> 00:12:00,720 housing then tell me something david yep would you put this pack in a camera do i 169 00:11:59,120 --> 00:12:04,079 own the camera is it your camera it's my camera uh maybe 170 00:12:04,560 --> 00:12:08,480 and this is where we bunged it up last time 171 00:12:09,279 --> 00:12:12,560 do you believe i believe 172 00:12:15,440 --> 00:12:19,440 sandpaper between yeah you better believe it 173 00:12:19,920 --> 00:12:26,240 two more strips and then this one this last one here 174 00:12:24,399 --> 00:12:29,279 actually needs to be quite a bit longer do we got this guys 175 00:12:29,360 --> 00:12:35,040 theoretically that's it where's the multimeter we should all see seven volts 176 00:12:32,880 --> 00:12:40,480 here we go boys better have seven folds 6.98 we're short 177 00:12:38,800 --> 00:12:45,200 kidding kidding kidding i just want to cut away this little square here wraps i 178 00:12:43,360 --> 00:12:50,480 cut away more of it than i had meant to there let's solder a wire to it 179 00:12:50,480 --> 00:12:57,200 we had a mishap with our first bms and the snips 180 00:12:53,839 --> 00:12:58,160 and unfortunately when i saw the spark i 181 00:12:57,200 --> 00:13:02,959 kind of jerked and moved fast and i'm not sure 182 00:13:00,800 --> 00:13:07,279 whether the spark was from shorting the battery or shorting the bms so we might 183 00:13:05,680 --> 00:13:11,200 have killed the bms which means that 184 00:13:09,120 --> 00:13:14,720 we had to go find another sacrificial battery which was also on its last legs 185 00:13:13,680 --> 00:13:20,079 anyway and we're going to use that bms so i'm 186 00:13:17,519 --> 00:13:25,360 just going to go ahead and solder that guy what do you think guys 187 00:13:22,480 --> 00:13:25,360 much higher chance 188 00:13:25,519 --> 00:13:32,160 nothing this time i'm surprised that's as good as you can get like yeah there's 189 00:13:30,399 --> 00:13:36,880 nothing we didn't do anything wrong this time check the pack voltage the battery 190 00:13:34,720 --> 00:13:40,240 7 volts all that means is that these pads are definitely connected please 191 00:13:38,800 --> 00:13:43,519 tell me this is a cheap light it's a monitor it's not cheap oh it's 192 00:13:43,920 --> 00:13:49,199 that's it this time i'm sure we did everything 193 00:13:47,199 --> 00:13:53,839 right the pack is assembled correctly the bms was it went straight out of a 194 00:13:51,600 --> 00:13:56,480 working one onto ours i'm 195 00:13:54,720 --> 00:13:59,839 really surprised this didn't work actually point of clarification i'm 196 00:13:58,560 --> 00:14:05,040 furious but not surprised let's talk about that we discovered in 197 00:14:03,519 --> 00:14:10,000 our initial research for this project that even if we had successfully welded 198 00:14:07,440 --> 00:14:13,920 together a battery for this red brick it wouldn't have come back to life and 199 00:14:12,240 --> 00:14:18,560 the reason for that is because battery manufacturers are us 200 00:14:16,399 --> 00:14:22,160 there are multiple tiers of anti-right to repair behavior one of the simplest 201 00:14:20,639 --> 00:14:27,040 is mechanical obstruction where manufacturers use brittle plastic glue 202 00:14:24,959 --> 00:14:31,279 single-use fasteners and other similar strategies to make repairing their 203 00:14:28,320 --> 00:14:35,360 devices impractical sometimes this is just plain not caring about the user of 204 00:14:33,440 --> 00:14:39,600 the environment while other times this happens for malicious reasons like 205 00:14:37,279 --> 00:14:43,199 planned obsolescence either way i promise neither of them will ever happen 206 00:14:41,120 --> 00:14:48,639 with our merch from lttstore.com get yours today the next tier of anti-right 207 00:14:45,360 --> 00:14:51,360 to repair behavior is soft obstruction 208 00:14:48,639 --> 00:14:56,240 this is almost always on purpose and exists solely to prevent end users and 209 00:14:54,079 --> 00:15:00,480 third parties from repairing or rejuvenating their devices with 210 00:14:57,839 --> 00:15:04,720 manufacturers often citing safety as a justification 211 00:15:02,079 --> 00:15:08,160 that is what we ran into with well would have run into with our red pack and 212 00:15:06,240 --> 00:15:10,240 appears to be what we ran into with our other pack 213 00:15:09,279 --> 00:15:16,720 but how are they doing that well there are 214 00:15:13,199 --> 00:15:18,800 four different types of bms dumb basic 215 00:15:16,720 --> 00:15:24,079 smart and evil dumb is no bms at all like these rc lipo 216 00:15:22,079 --> 00:15:27,839 batteries each cell's voltage is maintained at the time of recharging by 217 00:15:26,079 --> 00:15:32,800 a much more sophisticated battery charger using the balance lead 218 00:15:29,839 --> 00:15:36,800 a basic bms allows you to safely use and charge the battery pack with a simple 219 00:15:34,560 --> 00:15:41,440 charger while protecting against under and over current situations so a lot 220 00:15:39,120 --> 00:15:45,680 better than nothing a smart bms will include cell balancing and some level of 221 00:15:43,759 --> 00:15:50,399 capacity learning along with self resetting for faults and 222 00:15:47,440 --> 00:15:56,000 ideally the ability to resell no not like this on facebook marketplace 223 00:15:52,880 --> 00:15:56,959 to replace the cells like we attempted 224 00:15:56,000 --> 00:16:01,759 today finally there's evil bmss which 225 00:16:00,079 --> 00:16:05,920 thankfully we don't see that much of these days what makes them evil is that 226 00:16:03,759 --> 00:16:10,079 after a set number of charge cycles they will switch off permanently even if they 227 00:16:08,079 --> 00:16:13,680 could still work and if you as a manufacturer ever built this sort of 228 00:16:12,079 --> 00:16:20,639 intentional e-waste shame on you all of which raises some questions then 229 00:16:17,519 --> 00:16:22,959 what exactly did we see today 230 00:16:20,639 --> 00:16:26,880 according to tyler from thtbattery.com red batteries at least these older red 231 00:16:24,800 --> 00:16:30,720 bricks are extremely challenging to resell because there's a good chance the 232 00:16:28,639 --> 00:16:34,720 bms will simply not wake up after the operation he hasn't put the r d into 233 00:16:33,199 --> 00:16:38,480 solving the problem because there just haven't been enough requests but there 234 00:16:36,639 --> 00:16:43,120 are a couple possible explanations for this the malicious one is that red's 235 00:16:40,880 --> 00:16:48,079 contract manufacturer could be using software to detect either cell 236 00:16:45,279 --> 00:16:52,320 disconnection or a change in capacity that will shut down the bms on purpose 237 00:16:51,040 --> 00:16:56,480 in which case it's basically an evil one for all 238 00:16:54,959 --> 00:17:01,279 intents and purposes the good news is that replacing the bms 239 00:16:58,720 --> 00:17:05,039 with a generic one for about 17 could get you back up and running if you don't 240 00:17:02,639 --> 00:17:08,319 need the original indicator lights or anything like that 241 00:17:06,400 --> 00:17:12,720 the careless possibility is that they used volatile storage for the bms's 242 00:17:10,559 --> 00:17:17,919 programming that wipes itself if it loses power given the cost difference 243 00:17:15,199 --> 00:17:21,600 this honestly could also be considered a malicious design decision 244 00:17:20,240 --> 00:17:27,839 now something that i want to make clear at this stage is that i am not advocating for user serviceable battery 245 00:17:25,520 --> 00:17:32,720 packs considering the precision required for safe assembly and the volatility of 246 00:17:29,760 --> 00:17:36,320 the chemistry that's just not realistic as we observed today 247 00:17:34,400 --> 00:17:40,720 but there's a middle ground here ah yes this pack is made by a company 248 00:17:38,880 --> 00:17:44,160 called bebop a german battery manufacturer that just so happens to 249 00:17:42,400 --> 00:17:48,880 supply one of the largest cinema camera makers in the world ari they advertise 250 00:17:46,960 --> 00:17:52,720 their cells to be replaceable and they even have an indicator that tells you 251 00:17:50,480 --> 00:17:56,480 when you've reached 80 and 60 percent of the original capacity when that happens 252 00:17:55,120 --> 00:18:00,400 you can send it to them and they will replace the cells at a discount other 253 00:17:58,880 --> 00:18:04,720 cinema brands take notes we're not even asking you to 254 00:18:02,640 --> 00:18:09,520 be as awesome as bebop but the least you can do is not put up roadblocks on 255 00:18:06,799 --> 00:18:12,559 purpose so then the safest way that you can help right now is just returning 256 00:18:11,280 --> 00:18:17,280 your batteries to be recycled when you're done with them but in an increasingly electrified world producers 257 00:18:15,760 --> 00:18:21,679 of battery-powered devices have a responsibility to plan ahead and to 258 00:18:19,520 --> 00:18:25,679 extend the lifespan of their products and figure out what's supposed to happen 259 00:18:23,919 --> 00:18:29,919 to them when they reach the end of their life on that note as it turns out one of the 260 00:18:28,240 --> 00:18:34,320 largest battery recycling facilities in north america retrieve technologies is 261 00:18:32,080 --> 00:18:37,919 just a few hours away from us so let us know in the comments if you want us to 262 00:18:35,679 --> 00:18:42,960 go check out how it's done in person and get subscribed so you don't miss it and 263 00:18:40,080 --> 00:18:47,039 don't miss our sponsor ifixit ifixit wants to help you keep your new devices 264 00:18:44,960 --> 00:18:50,640 powered up like when they were new ifixit has a wide range of battery 265 00:18:48,960 --> 00:18:54,799 replacement kits for your mobile devices kits for laptops cell 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