Battery Recycling
in Sacramento, CA

Alkaline, Lead Acid, Lithium Ion, Nickel Cadmium, Zinc Air, Silver Oxide, VRLA…

Batteries contain metals, liquids, and other materials that are flammable, toxic and hazardous to the environment if they are not handled and disposed of properly. Those materials can include lead, zinc, nickel-cadmium, sulfuric acid, mercury, plastic, lithium, and others. When you use an R2 Certified recycler like Modern Waste, you are ensuring that the dangerous materials contained in the batteries are not making their way into the land fill where they can seep into local waterways.

“Your delivery people were knowledgeable, very helpful, and courteous. They explained everything, packed up what we had on site, and set up the containers for us. They knew what we needed better than we did. Containers are easy to use. Everything’s great so far. Thank you.”

Christine W.

Battery Recycling Process

Each type of battery has different processes for material recovery and recycling. Batteries like lithium ion tool batteries may be handled differently than lithium ion cell phone batteries even though they are the same chemistry. Tool batteries are made up of a group of smaller cells or smaller batteries put together. Those cells can be removed from the battery and tested individually. Cells that test to high enough standards can be reused and defective or substandard cells are sent for material recovery to make new products.

Whole Lead Acid Batteries

The batteries are broken apart in a hammer mill, a machine that beats the battery into pieces. The broken battery pieces are then placed into a vat, where the lead and heavy materials fall to the bottom and the plastic floats. The polypropylene pieces are removed and the liquids are drawn off, leaving the lead and heavy metals. Each of the materials goes into a separate recycling “stream”.


Polypropylene pieces are washed, blown dry and sent to a plastic recycler where the pieces are melted together into an almost liquid state. The molten plastic is put through an extruder that produces small plastic pellets of a uniform size. The pellets are put back into manufacturing battery cases and the process begins again.


Lead grids, lead oxide and other lead parts are cleaned and heated within smelting furnaces. The molten lead is then poured into ingot molds. After a few minutes, the impurities float to the top of the still molten lead in the ingot molds. These impurities are scraped away and the ingots are left to cool. When the ingots are cool, they’re removed from the molds and sent to battery manufacturers, where they’re re-melted and used in the production of new batteries.

Sulfuric Acid

Old battery acid can be handled in two ways: The acid is neutralized with an industrial compound similar to household baking soda. Neutralization turns the acid into water. The water is then treated, cleaned, tested in a waste water treatment plant to be sure it meets clean water standards. The acid is processed and converted to sodium sulfate, an odorless white powder that’s used in laundry detergent, glass and textile manufacturing. Lead acid batteries are closed-loop recycled, meaning each part the old batteries is recycled into a new battery. It is estimated that 98% of all lead acid batteries are recycled.

Battery Types

We can recycle virtually all types of batteries. In most cases, it is either best practice or required to separate batteries by chemistry type. Most of the time, the chemistry is identified on the side or top of each battery. Often times, there is an abbreviation used to designate the battery chemistry.

Modern Waste Advantage

6 Steps to Success

Included With Every Service & Customer Compliance Need



We will provide the equipment you need.



We will train you on what you need to know.



We'll come pick up or you can drop off.


Record & Log

We record and log everything in our secure database.


Shred & Recycle

We will shred, wipe, recycle or dispose of your waste.


Certify & Approve

We will provide certificates and reports as needed.