... bicycle adopt has a longer life ,3000 times,than the lead-acid battery .2. The average price ... of lithium iron batteries is about 15USD lower than lead acid batterie’s.3. Lithium iron battery ... in 25 kg, the Maximum speed is less than 25 km / h. The body structure,which ... fundamentally different with other lithium batteries, and much better than lead-acid batteries in terms of security. In ...