Last few years 18650 cells

In the last few years, 18650 cells have conquered the battery market for light electric vehicles. Competitive struggle was in the race for highest capacity and C-rate, but in 2017 a new format of batteries - the Boston swing - entered the market. When you look at first on this cell you can think that it is double 18650, but in fact it is a single cell with a little bigger dimensions than double 18650. The new battery cells are designed specifically for electric transport and are characterized by an extended working temperature range, the possibility of fast charging and a significantly extended service life. Boston Swing provide a full claimed capacity 5,3Ah per cell, while even the most expensive cells Sanyo and Panasonic deliver approx 90-95% of the claimed datasheet. The chemistry is Li-Ion, so the voltage is similar to most of Li18650 cells. And, of course, the main advantage is the low price with very high quality. Boston Swing 5300 can be used in Reention and Shanshan battery cases. Internal resistance is approx same with Panasonic PF. Max discharge current for one cell is 13A. Normal charge rate is 0,7C, that means these batteries can be charged in just 1,5 hours without any problems for their health and lifecycle.