The Visual Monitoring System™ (VMS) is an all-in-one battery sensor that offers a cost effective, intuitive solution to manage your battery fleet and confirm that the batteries have been charged, cooled and watered. The bright LED can be positioned in a convenient location for easy monitoring, even from far away.
Drill Bit
1/2" (13 mm)
YELLOW In use or being charged 
GREEN Battery is charged 
RED Battery is charged |
*Blinking indicates the battery has not cooled
The VMS light is yellow while the battery is in use or being charged. After the battery receives a full charge, the light will transition to blinking red or blinking green depending on the electrolyte level. A blinking light indicates the battery has not cooled.
If the light is red, the battery needs to be watered. If the light is green, the electrolyte level is OK.
After the battery has cooled for 4 hours* it will turn solid red or solid green depending on the electrolyte level.
Solid green indicates the battery is ready to use.
The light will transition back to yellow when the battery is in use.
*Always follow the battery OEM’s operational guidelines.
We pride ourselves in unrivaled customer service. If you have any questions about our products, please reach out today!
Toll Free: 1-877-522-5431
Phone: 336-714-0448
Inquiry: freeinfo@batterywatering.com
