4 ms·
Panasonic makes a 3400mAh 18650, NCR-18650B, which is very similar in volume and 2.62x higher capacity, ~2.55x higher density than the 1998 17670 cells. Not to
by hnuser1234 8y ago
Panasonic makes a 3400mAh 18650, NCR-18650B, which is very similar in volume and 2.62x higher capacity, ~2.55x higher density than the 1998 17670 cells. Not to mention we also have power density-optimized cells now. High performance DIY drone batteries are available that are 4 cells in series, 14.8-16.8 V, 1300 mah, about 150 grams, and can deliver 100+ A (1500 W), and be recharged hundreds of times before significant degradation. 5 years ago, a similar sized package could've delivered maybe 50 A peak, and it would degrade much faster, only lasting a few dozen cycles at that load before losing significant (20%) capacity. They would "puff" and overheat much more easily.