WARNING! The following article is from a tinkerer who can't do anything the easy way. The information provided is based on the few sources online as well are many assumptions and should not be followed too closely without your own research and testing. DO YOUR RESEARCH, TAKE PLENTY OF PRECAUTIONS , HAVE A PLAN, ALWAYS ERR ON THE SIDE OF SAFETY. Any injury, critical malfunctions, explosions and death due to following elements of details or procedure contained in these articles are at the risk of anyone reading these article and attempting to follow this information without a reasonable amount of knowledge in constructing Lithium Ion batteries and a strong knowledge of electricity is doing so at your own risk! Constructing large Lithium packs require an understanding and respecting of the dangers as well taking plenty amounts of precautions in constructing even a small pack. Do not attempt constructing any type of battery packs without proper prior instruction or training and again, having basic electrical knowledge, a proper layout the pack is important. This is a project that I am researching and the total amount of equipment I own would make this worth trying. The actual expense if one were to start from scratch would out strip the amount in savings that is listed in my blogs. The information within these blogs are starting points for what is required to construct a battery pack and does not have all the answers, such as, technical details of voltage drop issues, internal resistance considerations, charging methods or structural techniques and so on. Those details depend on the application of the battery pack and exceed the scope of these articles.
The Holidays rolled around and I had plenty to do family wise. The final assembly was delayed and I still have a busy month to slog through until I have time for my many projects.
So Far:
- 21700 cells configured to a more continuous "flow" - Done
- Staggered and connected cells for the upper group - Done
- Staggered and connected cells for the lower group - Done
- Hardening the jumper between cell 6 and cell 7 and moving to the bottom of the pack - Pending
- Output terminals redesigned and wires installed - Pending
- Fish paper Final shields installed - Pending
- BMS connections to plug - Pending
- Thermistor connections to plug- Pending
- Load tested - Pending
- Shrink Wrap - Pending
- The Ride - Pending
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