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TROLL Replaceable Battery Pack (P/N 0090000)
Manufactured by:  In-Situ

The TROLL Replaceable Battery Pack provides extended battery life for the Aqua TROLL 100/200, BaroTROLL, or Level TROLL 300/400/500/700, ideal for long-term or limited-access deployments and applications that require fast, frequent sampling.

The battery pack holds 8 field-replaceable 1.5V (AA size) batteries and can be used with vented or non-vented instruments (both require desiccant).


  • Adds an estimated 1.6 years extra life to Level TROLL Data Loggers*
  • Adds an estimated 5.75 years extra life to Aqua TROLL Data Loggers*

*Logging all available parameters at 15-minute intervals


  • Replaceable battery pack
  • 8 lithium 1.5 V batteries
  • Storage desiccant
  • Instruction sheet