A sealed hard-case high-capacity battery that keeps your light working for 4+ hours with an overcharge protection. All batteries come with an on board coefficient thermistor to detect high temperatures. As a safety feature the power is shut off if temperatures ever get too high. The battery pack is built with the highest grade lithium-ion battery cells produced by Samsung. Use the Velcro case to attach this battery to your frame or handlebars.
Sealed within its hard-case shell, the circuitry and cells are protected from the harsh elements. The 4-Cell Battery is 100% protected from water ingress and is completely weatherproof. Rain or shine, this battery will give you the power you need.
Can be used with Duo 1500 or Olympia 2100 lights