I am wanting to get into some DIY lithium battery projects in the near future. There are a couple niche market, very expensive, kayak motor systems on the market with absolutely ridiculous ranges. (Such as the torqeedo ultralight 403 with 25 mile max range)
Lithium typically runs much better in cold weather than nickel metal hydride or lead acid, it runs at almost half the weight, last 8-10 times longer before losing storage capability, and stores anywhere between 20-35% more energy In the same physical size. Aside from cost, there is almost no downside in switching.
I am thinking of playing around with battery packs made from 18650 batteries. (the basic cell that Tesla battery packs, e-bike batteries, laptop batteries, and many other devices are made of) it is pretty cool what can be done with used battery cells nowadays.
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