Yes. The only good ones have Korean/Japanese cells with embedded balancing IC. These cheap cell packs soon degrade cell by cell. When this happens a cell may ge

Yes. The only good ones have Korean/Japanese cells with embedded balancing IC. These cheap cell packs soon degrade cell by cell. When this happens a cell may get reverse charged and rupture = fire time. Many places in NYC have banned them and the word is spreading on the insurance web forums - who tell the buildings they have zero coverage in case of a battery fire unless they are forced into basement corrals where the structure contains car fires, gas or electric with structural concrete barriers and sprinklers. Not sure how a battery fire can be damped by water . I have seen many fires on video security cams inside apartments that just burned and some exploded. This is sure to attract regulation.