How to Build a 14s6p Skateboard Battery! - (Black Mamba Phase One Pt. 2)
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- เผยแพร่เมื่อ 13 ก.ค. 2024
- In today's video, I build my 14s6p battery for my Black Mamba DIY! This incredibly powerful battery is an integral part of making this DIY build great, providing up to 180a continuous to the MakerX D75 vesc-based ESC in this build.
Building lithium-ion batteries at home can be a very dangerous thing to do, if you are not well versed in the dangers and things to avoid. In this video, I share the current best practices for most of the things I do. If you have any concerns about your ability to complete different steps in this video DO NOT replicate it. If you have any questions about things that are done in this video, please ask below, or join the esk8news forum and check out the battery builders club thread:
forum.esk8.news/t/the-battery...
The battery in this video uses Molicel P42A cells, which BatteryMooch rates for 30a. To support that discharge amount, I went with three weld pairs per cell. You could probably even do 4 pairs, but 3 is fine for this build. Additionally, I used more tinned copper braid in combination with the 12-awg wires to make a hybrid flex-capable pack. The Hummie deck flexes a tad, making it unwise to make a rigid pack, but not necessary to have a completely flexible pack.
I've done a few rides on this battery and expect to get between 20 and 30 miles on it depending on how I ride.
Check out the previous videos in this series, starting here:
• DIY Electric Longboard...
Check out the forum thread that I started here:
forum.esk8.news/t/inazuma-rac...
Please feel free to ask any and all questions in the comments!
Motors: China - flipsky.net/collections/e-ska...
US - boardnamics.com/product/bn638...
ESC: www.makerx-tech.com/products/...
Enclosure: www.eboardsperu.com/product/r...
Gear Drives: boardnamics.com/product/m1-at...
Battery: skyartpower.com/
Deck: redemberboa...
XMount: skatexboard.com/products/x-mo...
Remote: wavrx.com/product/iremote/
Leave any questions in the comments section!
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Timestamps:
00:00 14S6P Build!
01:16 Cell Prep
02:25 Fishpaper Rings
03:40 Cell Gluing
04:24 Fishpaper Wraps
06:40 Welding Cells
07:17 Initial Pack Layout
09:35 Side Soldering Setup
12:02 Pre-Tin Solder Pads
12:49 Tinning Cables
13:57 Soldering Demo
16:40 Solder Braid Time
17:21 Discharge Lead Prep
18:55 Soldering B- on Battery
19:44 Discharge Connector Soldered
20:48 Positive and Negative on Battery
21:35 Fold Tabs
23:24 Braid Soldering
24:14 Balance Wire Prep
26:03 Balance Wire Numbering
27:44 Balance Wire Layout
29:29 C(+) and 14th Balance
31:25 C- and Lights
32:49 Wrap Up Prep
36:22 Structural Tape
38:59 Secured Negative Discharge
40:28 Finished Montage
41:05 Next Steps / Final Thoughts
Media used in this video:
Track: Dominic Strike - Heartbeat
Music Provided by Magic Records
Listen To The Original: • Dominic Strike - Heart...
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Music from Tunetank.com - วิทยาศาสตร์และเทคโนโลยี
Awesome job as usual! Ive been learning alot from your vids / tips and the help you provide on the forums!! Thank you!!!
Thank you! I'm glad you're able to get value out of my content.
I've leant to never even try to build a battery unless it's for a fire party😁 i'll stick to watching and admire the result. Thank you
Haha thanks for watching!
man you make this look so easy! I have been thinking about converting a old Carver Surf skateboard i got to electric and this is making me think i can do it!
Haha yeah well, I've built quite a few of them now so it kind of feels like second nature. Once you do all the basic stuff a bunch of times, the main things to look out for are getting the weld settings right, understanding Bms wiring, and properly doing the discharge leads. Glad to hear it helped you understand the process!
Thanks for your work!
Thanks for watching! Hope you found it helpful
Ugh, RED shrink on a BLACK NEG CABLE?? SACRELIG!! JK great vid man, love to see some good battery build vids still being made
Hahaha someone noticed. I am always running out of that size of heat shrink and really had no choice. Thank you! I put a lot of hard work into these builds.
Thx for this great video! U didn't use a xt90 loop key?
Thanks for watching! No, I didn't need to since my ESC utilizes sleep mode, turned on and off by a switch that's built into the ESC. I did solder an XT90s though as the discharge on the pack, so as to prevent a spark when plugging it in the first time, but some argue this isn't quite necessary.
Where do you purchase the bms? Nice video :)
Bought it directly from a friend on taobao! It's a jbd smart bms
Were did you get the 6p nikel strips? Nice battery!
Thanks! I got them from a friend in the industry, SKP. He sold me some for this project from his own stock. I don't think he sells them publicly though.
1) Why are the fish paper circles necessary on only one end?
2) It didn't look like you scratched the nickel plates before putting on the solder pools. Did I miss it or have you found that's not necessary?
3) Why two wires (blue/purple) between nickel plates?
1) This is due to the construction of lithium ion battery cells. The outside of the can is the negative terminal (for most 2170 and 1865 cells), and the positive is the small round circle in the middle. The shoulder of the cell is what gets covered by the fishpaper, providing an extra layer of insulation between the negative and positive.
2) It kind of depends. It's possible I just didn't include it in the video. Technically it's not entirely necessary, but it can help locate the solder on the nickel a bit for people who are less experienced.
3) Two wires for the amount of current that needs to be transferred. Colors just for fun
Hope this helps!
Nice pack Ryan! What's the voltage on your fuse? Since it's a charge fuse, how do you determine/calculate the fuse size? Based on the flex when you lifted it. I think it's safe to say your board will never flex as much! Thanks for sharing and taking the time to show your hard work. Recording this stuff is so much work let alone the editing!
Never mind you already answered on your last battery pack build.
Thank you! I appreciate your support. I am using 12v fuses which is slightly questionable, while waiting for more hv ones to come. They seem to work fine though, but I've also never shorted a charge port.
Nice the BMS is bypassed?
Yep it is, I usually do on these builds
Why do you use two cables between each battery pack?
I use two in order to meet the current requirements of the esc I'm running. One 12awg would get quite hot.
What do you use for the welding?
I use a KWeld with a lipo pack.