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  1. S

    Replacing NiMH batteries with Li-Ion

    First, let me start by saying I know that NiMH chargers are not meant for use with Li-Ion and would likely destroy the cells at minimum (and best case) - my thought is to not charge the batteries with the original charge mechanism. Let's assume for a second that I want to make a pack where the...
  2. S

    Building a 'different layout' 7s4p pack

    I'm fairly new to to the lithium pack building 'scene', although I've been working with electronics for many years, so the basics are pretty simple. Building a 7s4p pack in the simplest of layouts, 7 long by 4 wide, is, well, simple. But I'm faced with a pack that I want to build where I'd like...
  3. S

    18650 cell substitute for weld testing

    As the title suggests, what would be a good substitute for an 18650 cell that is easily obtained that would allow for testing and dialing in of a welders pulse, so you could see an accurate representation of the penetration of the weld on the under side of the weld? I've seen people use utility...
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    Battery welding issues

    I've been playing with 18650 cells for a little bit now, recovering cells from various sources, testing them and such, and am going in the direction of starting to build some small packs. The first 7s pack I put together, I soldered (Yes, I know, not generally a good idea, but I was careful...
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