Battery Recycling for Businesses Use the chart below to determine how to handle used batteries generated by your business. Batteries that are considered hazardous must be recycled or managed by your business as a hazardous waste. Businesses are strongly encouraged to recycle batteries that, while not considered hazardous waste, are readily ...
If your main battery is on the way out, the (concealed) secondary battery will also be not far off. Since that battery also supplies power to the ECU memory when the car is switched off, as well as powering the stop/start system , don't ignore it. Like the main battery, Volvo recommend that it be a "Absorbent Glass Matt" ( AGM) battery type.
When replacing the support battery, a battery of AGM type must be fitted". (Updated 2018 Manual Advice) "Important When replacing the starter battery in cars with the Start/Stop function, a battery of EFB type or stronger must be installed. When replacing the support battery, a battery of AGM type must be fitted".
The main battery is the one to look at. The secondary battery is only connected to the car by a relay for a fraction of a second during an engine restart from a stop/start event, when it momentarily takes the load of running consumers, to free the main battery capacity entirely to service the operation of the starter motor.
Household battery recycling locations Lead-acid batteries, or “automotive type batteries,” are banned from disposal. Consumers may bring lead-acid batteries to any Wisconsin retailer that sells these batteries for recycling. This service is free to customers who buy a new battery. Customers may be charged a fee if they bring in a used battery without buying a new one.