battery applications: trolleys, medical equipment, solar panels, energy storage, power tools, electric bicycles, chauffeured bicycles, household, takeaway electric vehicle batteries, widely used. the most popular bicycle lithium battery with large capacity, good performance and high power. 18650 lithium battery hailong lithium battery, electric bicycle battery, safe and environmentally friendly battery, easy to carry, safety first.trade: retail and wholesale hailong lithium battery is widely used and is the choice for electric bicycles. it is widely used in many countries. popular lithium batteries are not only portable, but also very durable. we have a professional production team, stable logistics, quality assurance, and purchase with confidence..syi