New LG lithium batteries $600 per KWH
LG has a new line of lithium batteries out, and the rumor is they are 600$ per KWH. I am surprised no one on here has mentioned the newer LG Chem RESU lithium ion batteries. They have managed to pac...
Forum Discussion
pnichols wrote:OldSmokey wrote:
you mean like this :
Drop in replacement 12V
or this:
Drop in 12 V
these are true drop in replacements. however, you pay the price for this convenience.. the packs have every protection going to prevent overcharge, cell balancing and anything else you can think of to cover their asses.. !
I "mean like this " IF, and only IF, those drop ins contain, say, only four 3.2V lithium single cells wired in series to get 12.8 volts ... AS OPPOSED TO a whole bunch of small amp hour capacity lithium singls cells wired together in parallel-series such that a whole bunch of (inherently unreliable) inter-connections are present. ;)
those drop in's are typically four prismatic cells in series. this minimizes interconnects and BMS wiring, however the balancing modules have to carry more current as a consequence.
multi cell approach is fine if the interconnects are designed for vibration and it's implemented correctly. in fact the multi cell does have the advantage ( if implemented correctly ) of being able to switch out a faulty cell to maintain integrity and not destroy the whole pack.
