... rechargeable,free-maintance 3500Mah high capacity sealed lead acid battery.b.Super long lifespan battery,circularly charge and discharge upto ... brighter.e.Use super bright, focusable,environmental protect, long life 10W LED, with lower power consumption, longer lighting time.The ... the working life,please charge one time regularly before using.b.If the light become dimout when using,please charge ...