--- title: What batteries does my StorMax Monitor take, and how do I change them? description: There are two versions of the StorMax monitor with two different battery configurations. Read below to learn about them and when it is appropriate to change the batteries. --- [Skip to content](https://knowledge.opisystems.com/en/knowledge/what-batteries-does-my-stormax-monitor-take-and-how-do-i-change-them#main-content) English Show submenu for translations [Submit a support case to our team](https://knowledge.opisystems.com/en/knowledge/kb-tickets/new?hsLang=en) ![OPI\_with\_Tag\_RGB\_300dpi\_3in\_tall-1.png\]](https://knowledge.opisystems.com/hs-fs/hubfs/OPI_with_Tag_RGB_300dpi_3in_tall-1.png?height=50&name=OPI_with_Tag_RGB_300dpi_3in_tall-1.png) Open main navigation Close main navigation - English Show submenu for translations - [Submit a support case to our team](https://knowledge.opisystems.com/en/knowledge/kb-tickets/new) - Visit OPIsystems Visit OPIsystems Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [OPIsystems Help Centre](https://knowledge.opisystems.com/en/knowledge?hsLang=en) 2. [StorMax](https://knowledge.opisystems.com/en/knowledge/stormax?hsLang=en) # What batteries does my StorMax Monitor take, and how do I change them? ## There are two versions of the StorMax monitor with two different battery configurations. Read below to learn about them and when it is appropriate to change the batteries. The StorMax Monitor comes in two different basic versions and each version requires it's own type of battery configuration. StorMax Monitors made prior to 2014 require 3 X 1.5V Rechargeable Alkaline AA Batteries, while monitors manufactured after 2014 require the use of a 3.7V battery pack that is manufactured and sold by OPIsystems Inc. To tell which type of battery you need, simply open the StorMax Monitor battery cover that is held in place with one small philips screw, located on the back of the monitor. You may need to remove the KITU accessory from the monitor to access the battery panel.  Once you open the panel, you will either 6 battery terminal contacts that fit into the StorMax Monitor case, or a 3 wire connection with a black, white, and red wire leading to the monitor interior. If you have 6 battery terminals, you need 3 X 1.5V Rechargeable Alkaline AA Batteries. If you have the 3 wire connection, you will need the 3.7V battery pack. To change the batteries, simply replace the old batteries with the new ones after you have opened the cover and identified the correct battery to use. Once you have changed the batteries, replace the back cover panel and tighten the philips head screw. **NOTE:** In the case of needing 3 X 1.5V Rechargeable Alkaline AA Batteries, do not substitute 1.5V Lithium Ion batteries or 1.2V Nickle Metal Hydride batteries. These batteries have different voltage and charging profiles which are incompatible with the StorMax Monitor.  If you are finding it impossible to locate 1.5V Alkaline AA batteries that are rechargeable, you can use non-rechargeable AAs and just switch them out after they lose their charge. - [OPIsystems Support](https://knowledge.opisystems.com/en/knowledge/opisystems-support?hsLang=en) - [EPIQ](https://knowledge.opisystems.com/en/knowledge/epiq?hsLang=en) - [OPI Blue](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#main-content) - [Upgrade Procedures](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#upgrade-procedures) - [Blue Seed](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#blue-seed) - [Cable Node](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#cable-node) - [agrimatics](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#agrimatics) - [Fan Node Radio (FNR)](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#fan-node-radio-fnr) - [Cell modem](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#cell-modem) - [Release Notes](https://knowledge.opisystems.com/en/knowledge/opi-blue?hsLang=en#release-notes) - [BLUE Lite](https://knowledge.opisystems.com/en/knowledge/blue-lite?hsLang=en) - [Integris](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#main-content) - [bin file](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#bin-file) - [Troubleshooting Information](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#troubleshooting-information) - [Database](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#database) - [Installation](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#installation) - [Software](https://knowledge.opisystems.com/en/knowledge/integris?hsLang=en#software) - [StorMax](https://knowledge.opisystems.com/en/knowledge/stormax?hsLang=en#main-content) - [Upgrade Procedures](https://knowledge.opisystems.com/en/knowledge/stormax?hsLang=en#upgrade-procedures) - [Update Information](https://knowledge.opisystems.com/en/knowledge/stormax?hsLang=en#update-information) - [Upgrade Procedures](https://knowledge.opisystems.com/en/knowledge/upgrade-procedures?hsLang=en#main-content) - [RTU Upgrade](https://knowledge.opisystems.com/en/knowledge/upgrade-procedures?hsLang=en#rtu-upgrade) - [Moisture Cable](https://knowledge.opisystems.com/en/knowledge/moisture-cable?hsLang=en) - [Cable Node](https://knowledge.opisystems.com/en/knowledge/cable-node?hsLang=en) - [OPI Blue Release Notes](https://knowledge.opisystems.com/en/knowledge/opi-blue-release-notes?hsLang=en#main-content) - [Gateway](https://knowledge.opisystems.com/en/knowledge/opi-blue-release-notes?hsLang=en#gateway) - [Cloud](https://knowledge.opisystems.com/en/knowledge/opi-blue-release-notes?hsLang=en#cloud) - [BLUE Lite](https://knowledge.opisystems.com/en/knowledge/opi-blue-release-notes?hsLang=en#blue-lite) - [EPIQ](https://knowledge.opisystems.com/en/knowledge/opi-blue-release-notes?hsLang=en#epiq) - [Advanced Grain Management FAQs](https://knowledge.opisystems.com/en/knowledge/advanced-grain-management-faqs?hsLang=en) - [Temperature Cable](https://knowledge.opisystems.com/en/knowledge/temperature-cable?hsLang=en) - [Temperature/Moisture Cable](https://knowledge.opisystems.com/en/knowledge/temperature-moisture-cable?hsLang=en) - [Plenum Pressure Sensor (PPOT)](https://knowledge.opisystems.com/en/knowledge/plenum-pressure-sensor-ppot?hsLang=en) - [Install Guides](https://knowledge.opisystems.com/en/knowledge/install-guides?hsLang=en) - [OPI Partner and Install Certification Information](https://knowledge.opisystems.com/en/knowledge/opi-partner-and-install-certification-information?hsLang=en) - [OPIsystems Internal Knowledgebase](https://knowledge.opisystems.com/en/knowledge/opisystems-internal-knowledgebase?hsLang=en#main-content) - [Administration](https://knowledge.opisystems.com/en/knowledge/opisystems-internal-knowledgebase?hsLang=en#administration) - [Sales](https://knowledge.opisystems.com/en/knowledge/opisystems-internal-knowledgebase?hsLang=en#sales) - [CO2 sensor](https://knowledge.opisystems.com/en/knowledge/co2-sensor?hsLang=en) - [Fan Control](https://knowledge.opisystems.com/en/knowledge/fan-control?hsLang=en) - [Warranty](https://knowledge.opisystems.com/en/knowledge/warranty?hsLang=en) [![Chill listening crop-3](https://knowledge.opisystems.com/hs-fs/hubfs/OPI_with_Tag_RGB_300dpi_3in_tall-2.png?width=100&height=55&name=OPI_with_Tag_RGB_300dpi_3in_tall-2.png "Chill listening crop-3")](https://advancedgrainmanagement.com/) Copyright © 2026, OPI