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Warning and warning labels

These international warning symbols are located on the product labels of all Discover® batteries. Lead acid batteries can be extremely dangerous if mishandled.  All of our batteries must contain warning information to help protect consumers against injuries.

Battery Labels

Do Not Add Water Do not add water. Do not add electrolyte. Discover® products have a recognized gas recombination efficiency of greater that 99.9% and are sealed, non-spillable and maintenance-free.
Do Not Tamper Do not tamper with product labeling, container or vents. Warranty is VOID if product is tampered with.
Do Not Throw in the Garbage Do not throw in the garbage. Discover® is a 98% recyclable product and must be processed via a recognized recycling agency.
High Voltage High voltage. Risk of shock. Do not touch uninsulated terminals or connectors.
Must be Recycled This product must be recycled and is made of recycled products. Contact a Discover® representative for collection and recycling.

Contains Lead

Contains lead. California Proposition 65 Warning: Battery posts, terminals, and related accessories contain lead and lead components, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.
 Note: To download the Battery Label Guide, click here, or visit the Literature page.


Danger. Poison. Danger. Poison. Keep out of reach of children,  do not tip and do not open the battery.
Shield Eyes Shield Eyes. Explosive gases can cause blindness or injury.

Flush Eyes

Flush eyes immediately and seek medical information right away.
Sulfuric Acid Sulfuric Acid can cause blindness and/or severe burns.
No Sparks or Flames No sparks, flames or smoking near battery.
 Note: The warning symbols and content contain the most current language as specified by the BCI.
General Lead Acid Battery Description
General Lead Acid Battery Applications
General Lead Acid Battery Types
General Lead Acid Battery Chemistry
Discover® Sealed Valve Regulated Lead Acid Batteries
Discover® Deep Cycle AGM Battery
Discover®700 Series Dry Cell Battery
Discover® EV Traction Dry Cell Battery
General Benefits and Features of Discover Valve Regulated Lead Acid (VRLA) Technology
Sales Channels for Discover Battery Technologies
Things to question when making a battery buying decision
What to consider when buying a deep cycle battery
Information gathering before buying batteries
Calculating cost to own when purchasing batteries
Safety First
Safety and Productivity
When working with batteries
When handling battery acid
When installing or replacing batteries
When booster cables are used
Danger of exploding batteries
Warning and warning labels
Parallel connections for sophisticated users and installers
Parallel connections for unsophisticated users and installers
When charging batteries
Selecting a charger
General charging information for AGM and GEL batteries
GEL battery charging
AGM battery charging
Equalizing (Flooded batteries only)
Typical self-discharge of VRLA batteries at different temperatures
Typical self-discharge of high quality deep cycle flooded batteries at different temperatures
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What components do I need for a grid-tie system?
What components do I need for a complete solar system?
What type of solar module mounting structure should I use?
Where should I mount the solar modules and what direction should I face them?
Should I set my system’s battery bank up at 12, 24 or 48 VDC?
Should I wire my home for AC or DC loads?
Can I use PV to heat water or for space heating?
How do solar panels (cells) generate electricity?
Will solar work in my location?
Tables & Figures