... 1500cycles;2,Ultra-safety: No burning and explosion ,even the battery is misused or its interior and exterior are damaged;3 ... and discharging with a large current;4,good performance at high temperature, with wide operation temperature(-20C--+75C)5,small size ... metals and rare metals, non-toxic, pollution-free. RoHS compliant, E-bike lithium battery HET-36V-10Ah