The Battery Clinic

A123 LITHIUM CELLS: Lacking any meaningful way to purchase
these breakthrough cells directly at a reasonable price, modelers are
eagerly grabbing up DeWALT 36-volt drill packs (model DC9360)
that are being offered on eBay for roughly $100 including shipping.
Salvaging the 10 cells they

the battery clinic - 2012/05

Professional engineer Peter F. Richiuso P.E. wrote:
“I prevailed on one of my colleagues in the analytical
chemistry lab to analyze the gas in a puffed LiPo I had. It turns
out that the gas is methane (CH4). I was surprised at first, but
after reviewing the LiPo chemistry and discussing it with the
chemist (Ph.D., in fact) it is very logical.

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