There is a detailed discussion about doing this here: http://www.mynissanleaf.com/viewtopic.p ... &start=250Lylou2 wrote:Hello, did enybody tried to make power bank for from 18650 batteries for nissan leaf 2011 or later and just put in baggage back, couse if to colculate that one cell f.eg. 18650PF is 10,7w/h so to get 10kwlh of extra energy you need aprox 960 cells and of ourse connect it in 96s10p plius BMS, so it's gonna be aprox 50kg and 20ltr pack which takes only 10 cm of baggage space down inside, and the price to get these nice cells aprox 1800 euros. Does somebody tried to make something like this? And for me most interesting to know how does the main computer of the car react to it or does just discharge/charge goes 2 times slower then before? Couse to make like this battery is wery easy couse I made before much of el. bicycle batteries.
I've temporarily made a 48V/1500W "power bank" which I can charge my car with via 110V EVSE to get an additional 4-5 miles in an emergency. It's only ~70% efficient (1.4 kWH from the power bank, 1.0 kWH to the Leaf battery).