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[2996.68 --> 2999.02] So, I was like, okay, I'm just going to do this, like, proof of concept.
[3000.24 --> 3005.72] And so, the reason—okay, so the other problem is my joints are really cold.
[3005.80 --> 3007.92] They're cold solder joints, which means they're, like, kind of lumpy.
[3007.98 --> 3009.52] Like, it didn't completely melt properly.
[3009.64 --> 3010.34] They're not as strong.
[3010.64 --> 3013.16] But the reason I did that was I didn't want to heat them up too much.
[3013.24 --> 3014.60] And this was just, like, proof of concept.
[3014.72 --> 3022.18] These are cells that I harvested from a failed battery pack from the Tesla Model S radio flyer, Rhydon.
[3023.00 --> 3025.86] So, I left it out in the cold or something because I forgot it in the garage.
[3025.86 --> 3028.58] And a couple of the cells failed.
[3028.86 --> 3031.50] So, I ripped it apart and then just checked the voltages of all of them.
[3031.56 --> 3035.24] Like, a couple of them died, but the rest of them were all still well within normal margins.
[3035.38 --> 3036.66] They were at, like, 3.92.
[3036.94 --> 3037.98] So, they were very usable.
[3038.26 --> 3039.46] So, I made a pack out of these.
[3039.54 --> 3041.06] They're kind of disposable, sort of.
[3041.62 --> 3043.46] And I was sort of tinkering with them.
[3043.64 --> 3047.06] Anyway, so the end game is to spot weld.
[3047.54 --> 3051.00] So, you use zinc strips, and then you spot weld.
[3051.00 --> 3054.54] But it's so funny because going into this.
[3054.58 --> 3055.62] So, I've learned a lot already.
[3056.42 --> 3062.36] But then now, you're not getting into, like, batteries so much.
[3062.56 --> 3065.50] You're getting into, like, spot welders land now.
[3065.94 --> 3066.06] Yeah.
[3066.06 --> 3068.84] So, there's a whole new, like, thing I've got to do.
[3069.20 --> 3069.96] So, okay.
[3069.96 --> 3070.12] Careful with fumes.
[3070.64 --> 3072.04] You can, okay.
[3072.18 --> 3072.66] Like, seriously.
[3072.88 --> 3073.06] That, too.
[3073.52 --> 3074.64] But even just making it.
[3074.78 --> 3077.14] Even getting to the point of spot welding something.
[3077.30 --> 3080.94] You can buy spot welders, but they're all kind of designed, as far as I can tell.
[3081.00 --> 3084.20] Like, the countertop ones are designed kind of with a specific purpose.
[3084.20 --> 3086.26] Like, they have a thing, and you, like, hold something up to it.
[3086.52 --> 3094.94] Whereas, all the guys that are DIYing them out of, like, car batteries and capacitors are on an arm that you can make your battery out of.
[3095.16 --> 3098.18] So, I'm kind of sitting here going, why doesn't that exist as a prepackaged thing?
[3098.18 --> 3100.60] Maybe it does, but it's probably on eBay somewhere.
[3100.90 --> 3102.22] And are they reputable?
[3102.38 --> 3103.26] I have no idea.
[3103.66 --> 3106.52] Everyone recommends building your own, but no one actually has.
[3106.58 --> 3108.20] Look, it's all itemized.
[3108.48 --> 3109.72] Here's exactly the thing.
[3109.78 --> 3116.06] Out of the, let's say, 40 bloody part numbers, here's the exact thing that actually works exactly right for you.
[3116.10 --> 3120.94] So, I'm, like, I'm on this whole new journey of discovery now just to figure out how to spot weld the damn battery together.
[3121.08 --> 3123.88] And I don't even know if it's going to work well.
[3123.88 --> 3127.90] So, this comes back to helping me figure out what's wrong with my battery.
[3128.18 --> 3134.00] So, I actually have a draft post because I still needed to check a couple things over on Arma forum.
[3135.48 --> 3135.92] Whoops.
[3136.38 --> 3136.84] There we go.
[3138.20 --> 3140.38] So, configured as 3S3P.
[3140.60 --> 3143.06] Charge voltage reads correctly about 12.6 volts.
[3143.06 --> 3149.54] But, the car auto powers off after just a few minutes with the battery at, and I needed to double check this.
[3149.70 --> 3151.36] That's why I haven't actually posted this yet.
[3151.70 --> 3157.94] But, it's somewhere in the neighborhood of, like, 11.8 volts, which is not low enough.
[3158.34 --> 3160.32] It should hold for much longer.
[3160.32 --> 3164.90] And so, I know enough, just enough.
[3165.02 --> 3166.30] Like, it's just enough to be dangerous.
[3166.64 --> 3171.82] So, I know that, you know, when a load increases, you can get a drop in voltage.
[3171.82 --> 3188.80] But, I have a hard time imagining that the pack dropped in voltage so much that it would trigger the low voltage protection in the car that keeps your lithium batteries from over-draining themselves and becoming damaged.
[3188.80 --> 3192.28] Especially because I'm running a 3S pack instead of a 2S pack.
[3192.46 --> 3194.70] So, I have 50% higher voltage in the first place.
[3194.88 --> 3199.50] It's not like the balance leads actually connect to the car, so it has no way of knowing how many cells I'm running.
[3199.82 --> 3205.54] Unless it just assumes, based on your initial voltage, that you want to go down to some value X minus Y.
[3206.56 --> 3206.88] Okay.
[3207.28 --> 3209.52] So, I thought, maybe this is, like, a V-droop issue.
[3209.88 --> 3216.90] But then, why is it that out of the gate, I can hit it and it's fine?
[3217.76 --> 3218.28] Oh, no, no, no.
[3218.28 --> 3219.52] Sorry, that wasn't the issue there.
[3219.58 --> 3220.42] Could be a V-droop issue.
[3220.54 --> 3220.70] Right.
[3220.80 --> 3225.46] The other issue was I thought maybe the individual cells, I'm tripping their overcurrent protection.
[3225.82 --> 3229.04] But then, out of the gate, why does it work fine and then why does it cut off later?
[3229.04 --> 3231.80] There might be overcurrent protection, like, lag almost.
[3232.58 --> 3233.36] I doubt it.
[3233.50 --> 3234.20] I doubt it, too.
[3234.28 --> 3239.20] Because that would generally be heat activated and the way that that works is that it won't work again until you cool off.
[3239.52 --> 3241.32] And all I have to do is unplug and replug and it goes.
[3241.70 --> 3242.02] Okay.
[3242.36 --> 3242.58] Yeah.
[3244.04 --> 3245.94] And these ones should be fine for Hydra anyway.
[3245.94 --> 3247.28] I pulled them out of a ride-on car.
[3247.28 --> 3250.20] Like, it theoretically should be fine.
[3250.28 --> 3251.16] It's just a little RC thing.
[3251.22 --> 3251.38] Anyway.
[3251.62 --> 3258.30] One thing the chat brought up and I would bring up as well is look into, maybe there's, like, a spray foam solution or something.
[3258.96 --> 3260.96] But, like, fire protection from the batteries.
[3261.74 --> 3264.36] Oh, I charge in an insulated metal box.
[3264.36 --> 3264.58] No, they're running.
[3265.12 --> 3265.80] Oh, I don't care.
[3265.80 --> 3268.80] If that car blows up, I give exactly zero Fs.
[3269.02 --> 3269.32] All right.
[3270.98 --> 3271.42] Oh, cool.
[3272.86 --> 3273.34] Any blueberry?
[3273.90 --> 3274.76] I don't think so.
[3274.94 --> 3275.72] Oh, that sucks.
[3275.82 --> 3278.08] I'm bringing them over because almost everyone else is gone.
[3278.16 --> 3278.40] I'm good.
[3278.40 --> 3280.12] Karen didn't take them for, like, once.
[3280.46 --> 3280.92] Oh, wow.