Difference between pages "Premade or DIY" and "DIY-battery"

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(Created page with "Premade or DIY, the decision can be tough. Most people don't have any experience in assembling mechanical devices or electrical work. Overall, DIY seems to be the way to go if you can. Many premade bikes use proprietary batteries controllers/shapes and some even use controllers that won't work without the exact same brand battery. a DIY bike can be repaired with off the shelf bike parts and the battery/controller/motor can be replaced with pretty much any other batter...")
 
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Premade or DIY, the decision can be tough. Most people don't have any experience in assembling mechanical devices or electrical work.  
'''Intent:''' This page is created as a guideline whether if assembling/designing your own battery pack is a viable option compared to buying a pre-made battery.
Prerequisite software/knowledge (before building a pack)


Overall, DIY seems to be the way to go if you can. Many premade bikes use proprietary batteries controllers/shapes and some even use controllers that won't work without the exact same brand battery.
Ability to draw 2D schematics/diagrams. - you need to do this if you are trying to make a pack with a certain dimension constraint. use of CAD is encouraged.


a DIY bike can be repaired with off the shelf bike parts and the battery/controller/motor can be replaced with pretty much any other battery/controller/motor of similar spec. In the event of damage/failure of the frame the entire electrical kit can be swapped to a new bike. This gives you incredible flexibility to repair your vehicle should any particular company shut down in the future or have excessively high prices for some parts.  
You know how to use the [https://ebikewiki.com/index.php/Simulator|Grin simulator] - You need to know how much current your battery will be drawing.


You can also make sure your batteries are from a name brand battery manufacture with DIY. Most prebuilds give little to no indication on who makes their batteries or who makes their cells.  
Ohm's law. Since we are not going into AC power, complex number/angle is not needed.  


That said, it is a lot easier to just buy a product and ride it. Due to the high currents involved in e-bikes it can be dangerous to DIY if the electrical work is incorrectly done. Same with the mechnical work. We highly recommend you not convert 'department store' bikes such as Walmart, Canadian tire, etc due to their low part and assembly quality and instead stick to bicycles sold by bike shops or 2nd hand bikes.
Ability to read battery cell datasheet. - As the wiki page becomes older, more cell info will be added to the page; but for cells that are not on this wiki/internet in a simplified format, reading datasheet will be necessary. [https://www.batteryspace.com/prod-specs/11514.pdf LG M50LT datasheet, from batteryspace], [https://www.batemo.de/products/batemo-cell-library/lg-energy-solution-inr21700-m50lt/ Simplified datasheet of M50LT, courtesy of Batemo.de]

Revision as of 08:31, 13 September 2023

Intent: This page is created as a guideline whether if assembling/designing your own battery pack is a viable option compared to buying a pre-made battery. Prerequisite software/knowledge (before building a pack)

Ability to draw 2D schematics/diagrams. - you need to do this if you are trying to make a pack with a certain dimension constraint. use of CAD is encouraged.

You know how to use the simulator - You need to know how much current your battery will be drawing.

Ohm's law. Since we are not going into AC power, complex number/angle is not needed.

Ability to read battery cell datasheet. - As the wiki page becomes older, more cell info will be added to the page; but for cells that are not on this wiki/internet in a simplified format, reading datasheet will be necessary. LG M50LT datasheet, from batteryspace, Simplified datasheet of M50LT, courtesy of Batemo.de

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