A: No. Streamlight products are optimized and the components can be damaged or destroyed by the use of anything other than the recommended battery type. The use of improper or substandard lithium batteries can be especially dangerous.

A: No. Routinely running the lamp until it extinguishes will drastically shorten the life of the battery.

A: Research has shown that the "memory effect" is a rare phenomenon and is almost nonexistent in high-drain applications such as flashlights.

Here are some useful tips to help prolong the life of Ni Cd batteries:

• The light should be returned to the charger when it is not in use
  
• It should never be run until the battery is completely exhausted
  
• Return the flashlight to the charger when it begins to dim
  

A: Streamlight does not support the use of batteries other than those specifically listed in the instructions. Normally the lamps and current regulators are designed for a specific type of battery, and using other batteries often results in poor performance, either low output or extremely short lamp life, depending on the battery types involved.

A: Generally yes. Streamlight charge cords use a common connector. The exception to this is the Ultrastinger fast charge systems that must use either vehicle 12V DC or the heavy duty AC charge cord which is supplied with the system.

A: First, see if there is power to the charger itself. Second, check to be sure that the flashlight is properly inserted into the charging system. If the red light still does not light the flashlight and charger should be returned for repair.

A: As the battery approaches a fully charged state it is normal for the charger LED to alternate between lighting steadily and blinking. This process may take as long as 15 minutes to one half hour and does not indicate a charging problem.

A: No. The Stinger and the Strion are different sizes and their battery chemistries and charging systems are completely different.

A: Follow the guidelines in the instruction booklet included with the flashlight. Some products have a red and green light combination (Litebox, Vulcan). In that case green indicates a charged condition. Flashing red LED’s on the Stinger (fast) and Strion chargers indicate a charged condition.

A: No. Batteries have an expected number of charge/discharge cycles (the number varies by the type of battery). Streamlight fast chargers safely revert to a maintenance charge rate after the battery has been charged.