In-Situ TROLL Replaceable Battery Pack

In-Situ TROLL Replaceable Battery Pack


The Replaceable Battery Pack supplements internal battery power when a TROLL is used for frequent, fast sampling, or during long-term deployments


  • Compatible with Level TROLL 400, 500 & 700
  • Also compatible with Aqua TROLL 100 & 200
  • Supplements internal battery power when used
Free Shipping on this product
Your Price
Usually ships in 1-2 weeks

Shipping Information
Return Policy
Why Buy From Fondriest?


The TROLL Replaceable Battery Pack supplements internal battery power when a Level TROLL or Aqua TROLL 100 or 200 Instrument is used for frequent, fast sampling or during long-term deployments. When this power source is connected, the TROLL instrument will use the external battery source first and switch to the internal batteries when external battery power is depleted. Battery life depends on sampling rate. This battery pack allows for 1.5 V UM-3 or size AA batteries (8) that are replaced by the user.

Image Part # Product Description Price Stock Order
In-Situ TROLL Replaceable Battery Pack 0090000 TROLL replaceable battery pack
Usually ships in 1-2 weeks
Additional Product Information:

Related Products

In The News

E. Coli in the Los Angeles River: How Much is Too Much for Recreational User Exposure?

Although the Environmental Protection Agency (EPA) and other agencies have already answered this question by setting guidelines for E. coli limits in water used for recreational purposes, the question is again being debated in Los Angeles. This is because the city adopted a new protocol in October of 2017 that mandates closing the Los Angeles River to recreational users whenever E. coli levels are too high. E. coli in the Los Angeles River The City of Los Angeles approved the new river protocol which was developed by the City of Los Angeles Department of Sanitation (LA SAN), the Los Angeles County Department of Public Health, the City of Los Angeles Mayor’s Office, the Mountains Recreation Conservation Authority, and the Los Angeles County Department of Public Works.

Read More

Can Better Technologies Save Endangered California Salmon?

Up until the 1800s, salmon were so plentiful in California that these “ bits of silver pulled out of the water ” could be observed ascending the waterways, thousands at a time, each season. However, decades of logging, the construction of dams, and other human interventions have changed the waterways of the state so significantly that the range of the salmon has been permanently altered. Now, a team of scientists collaborating through the Interagency Ecological Program have developed a plan to improve salmon management and, hopefully, help save the species. Team members from NOAA Fisheries, the California Department of Water Resources, the U.S. Fish and Wildlife Service, the California Department of Fish and Wildlife, the U.S. Bureau of Reclamation, and the U.S.

Read More

Weather Extremes Shaking Up Fouling Communities in Urban Estuaries

Marine fouling species may seem to be lowly creatures, situated toward the bottom of that portion of the food chain animals comprise. However, these filter-feeding invertebrates that make their homes on hard underwater substrates such as the hulls of ships are among some of the most successful invasive species. Their secret is simply their ability to latch onto human vehicles and survive. Now, new research on the fouling community in the San Francisco Bay indicates that a single wet winter and the change in salinity that high levels of precipitation bring can knock back the advance of these hearty creatures. Marine biologist Andrew Chang of the Smithsonian Environmental Research Center’s Tiburon, California branch published this new research in December of 2017.

Read More