This Aftermarket ZNG-WF691-B Battery replaces the OI-WF691-B. Delivering 3.6V/19AH of power, it  is made with ONLY the highest quality cells and components. Built in our ISO certified facility - these batteries are in stock and ready to ship.

This battery will replace the following part numbers:

OTIS:

- OI-WF691-B

This battery will fit the following models:

OTIS:

- OI-6900-B Toxic Gas Detector 

Battery Specifications:
Part No.: ZNG-WF691-B
Chemistry: Primary Lithium (Non-Rechargeable)
Voltage: 3.6V
Capacity: 19AH
Dimensions: 1.29"(33mm) x 2.37"(60mm)
Terminal Type: Wire Leads / Connector 

Spec sheet

MSDS (Material Safety Datasheet)