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Lithium Ion Battery teardowns
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Oliver Henrichsen, SV Vela Nautica
Hello, In this teardown the usual problem with "drop in" batteries is exposed. Every drop in has its own BMS and with that a questionable max current capacity and a chance of long term disbalance if you hook several in a bank. Oliver from Vela Nautica Amel54 #39 Gran Canaria SPAIN
On Mon, Nov 25, 2019, 22:31 CW Bill Rouse <brouse@...> wrote:
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Nick, There are a number brands of "drop-in" Lithium-Ion batteries with internal BMS on the market. As you can see from the Battle Born teardown, not all of these are created equal. Regarding the small cylindrical Lithium battery cells, Tesla batteries are made of many small Panasonic Lithium batteries. Here is a closeup of a Tesla battery with the small Panasonic cells. Those cells are about 20mm in diameter. This screen shot taken from this video: https://www.youtube.com/watch?v=mWjG3REOF-M --
On Tue, Nov 26, 2019 at 1:18 AM ngtnewington Newington via Groups.Io <ngtnewington=aol.com@groups.io> wrote:
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Hi Bill,
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Wow that does look interesting. A drop in replacement and no additional BMS. What is the catch? I am not yet in the market as my Lifeline AGM’s are only two years old and they get filled to 100 percent most of the time. Maybe in 5 years time... Nick Amelia Kilada Greece
On 25 Nov 2019, at 22:31, CW Bill Rouse <brouse@...> wrote:
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I found 2 YouTube videos on Lithium Ion batteries that I really like. The batteries were disassembled by Will Prowse: https://www.mobile-solarpower.com/lithium-batteries.html. --
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