What kind of batteries do the SteriPEN products use?

Because of their superior power, well-known, brand name Lithium or Nickel Metal Hydride batteries are recommended. Lithium and NiMH batteries will usually provide about 100 treatments. Alkaline and NiCad batteries are NOT recommended for use with most SteriPEN water purification devices.

See user manuals for model specific information about treatments per set of batteries or compare SteriPEN models.

SteriPEN Adventurer Opti & SteriPEN Protector Opti

CR123 batteries for SteriPEN Adventurer Opti & Protector Opti

The SteriPEN Adventurer Opti and SteriPEN Protector Opti require two CR123 batteries.  One set of batteries will provide around 50 treatments.

If using rechargeable CR123 (RCR123) batteries, we recommend using the highest voltage available.  RCR123 batteries with voltages up to 4.2V per battery work well with Adventurer Opti and Protector Opti.  One set of rechargeable batteries will provide around 30 treatments.

Recommended CR123 battery brands:
Energizer CR123 photo lithium battery
Duracell Ultra DL123 (Photo Lithium battery)
Panasonic
Sanyo
Sony
Kodak
SureFire

SteriPEN Classic, Traveler, Emergency, & Defender

Recommended batteries for SteriPEN Classic, Traveler, Emergency & Defender Models

The SteriPEN ClassicTraveler, Emergency, and Defender use four AA Lithium or NiMH (rated 2300 or better) batteries.  One set of batteries will provide around 100 treatments.  If using rechargeable batteries, generally the higher the voltage the better the performance.  One set of batteries will provide around 80 treatments. 

 

Recommended brands:
NiMH
Energizer E2
Duracell
AA Lithium
Energizer
Energizer Ultimate

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