What do you do with your old batteries? Chuck them in the bin?
Well there's a whole generation of kids at Leppington Public School who are ready to school you on the importance of battery recycling.
The school came second in Stockland's Big Battery Rescue campaign last year, run in partnership with National Theatre for Children.
They collected a massive 144 kilograms of batteries, saving them from a life in landfill.
Principal Christine Easther said the school worked hard to spread the message and gather as many batteries as possible.
"We put notices in the newsletters, teachers sent messages home with the kids, we put posters up, organised a battery collector for each class," she said.
"Our leaders would go around every Friday to collect and weight the batteries. There was a little competition to see which class collected the most each week."
School captain William Yeatman said the pandemic did hamper the school's ability to run the campaign as they'd hoped at the start of 2020.
"We had a show at the start of the year which really encouraged people to start bringing in batteries, but then we had to go to remote home learning," he said.
"When we came back, not everyone was that interested, so we had to find different ways of getting people excited again."
The hard work led to the school coming second overall in the Big Battery Rescue campaign.
Fellow captain Sian Goodall said the students were excited to take ownership of the project.
"All of us are very proud that we came second," she said.
"So much hard work went into it."
Vice captain Joy Nguyen said everyone pitched in to help collect the batteries.
"We got all types of batteries from cars, from remotes, from torches," she said.
"Some of the teachers brought in batteries as well, and they were all collected in containers."
Fellow vice captain Emily Nguyen said everyone knew they were participating for a good cause.
"It's important because we're helping the environment and reducing landfill," she said.
William agreed: "it's very important, and I think everyone should do it to help the environment and save thousands of batteries from going into landfill".
Joy said the school hoped to achieve top spot in this year's campaign.
"We've come up with many ideas to get more batteries this year," she said.
"We're going to try and come first place.
"Our school has done choir events with Coles [at Willowdale] and have a good relationship with them, so we've put a container there with a sign so people can put their batteries inside.
"We've also got one at the retirement village in Willowdale."
This year's campaign will end at the close of the school year.