I'm not a battery expert, so take this with a large saltshaker of salt. I like LFP for safety, but specific energy and energy density are lower, and weight and size are important on an e-bike.
I think that for safety it's probably most critical that the battery is of good quality from a reputable assembler and has a good reliable BMS, In spring 2024 I bought an e-bike from MFC, an assembler located north of Paris. They supply some of the mid-price e-bikes sold in France at mass- market places such as E. LeClerc and Intersport. I'm not aware of any safety problems or recalls in their bikes other than one case, which involved a midmotor pedal crank that tended to shear internally, not a battery problem. The lithium battery is Chinese, but I trust MFC to have picked it reasonably carefully. With their volume, recalls would be expensive. I'm not afraid to charge my e-bike in the garage any more than to charge my car in the garage. I may be overly cautious, but I would be leery of batteries offered on Alibaba, Ebay, and Amazon, unless you have a way to vet the manufacturer. In 2011 when I was converting a Pb scooter to Li, I looked on the e-bike forums such as Endless Sphere for battery vendor experiences and recommendations. For a similar recent thread, search for the terms my battery research story and what I finally picked endless sphere I'm sure you can find other similar threads. Also, some folks use name-brand power tool batteries, reconfigured. David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Neurodivergence means that a person's brain functions differently from the typical brain. It is thought to be quite common. -- Ariane Resnick, "Verywell Mind" = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
