The US Consumer Product Safety Commission (CPSC) has issued a warning about a serious fire hazard linked to lithium-ion e-bike batteries from Rad Power Bikes, after 31 reported fires caused about $734,500 in damage.Rad Power Bikes has refused to recall the affected RP-1304 and HL-RP-S1304 batteries, stating it cannot offer widespread refunds or replacements due to financial issues, while maintaining that its batteries meet international safety standards.