When your car is scrapped, the battery comes out at the very start of depollution and goes to a specialist recycler. Around 90 to 95 per cent of it becomes new products, including new car batteries. If you are scrapping a car, leave the battery in: with it, the price is typically around £10 higher.
Leave the battery in or take it out?
Leave it in. The battery has scrap value of its own, so a car with its battery is worth more than the same car without one. Take it out and the offer will typically be around £10 lower.
There is one exception worth knowing. A nearly new battery can be worth more sold on its own or moved into another car than it adds to a scrap price. If you do remove it, say so when you get your quote, so the price you are given is the price you are paid on the day.
Everything else about the price is covered in what scrap cars are currently paying.
Why car batteries have to be recycled
Most cars on UK roads still start on a lead-acid battery, and almost all of it is hazardous. A typical unit contains around 11kg of lead, 5 to 6kg of dilute sulphuric acid and 2 to 3kg of other alloying metals, figures provided by Dr S P Binks, Regulatory Affairs Director at the International Lead Association. That makes roughly 90 per cent of the battery harmful if it leaks.
Lead that escapes into soil or water does not break down. It damages the brain and nervous system, the kidneys and the blood, and children are the most vulnerable to it, even at low levels. The acid is corrosive and carries the lead with it. This is why batteries are the first thing removed when a car is depolluted, before anything else happens to the vehicle.
It is illegal to bin or dump a car batteryUnder the Waste Batteries and Accumulators Regulations 2009, waste car batteries cannot be sent to landfill or incinerated. Battery producers must take them back free of charge, and treatment can only be carried out by approved battery treatment operators. An Authorised Treatment Facility handles all of this when your car is scrapped properly.
How a lead-acid battery is recycled
Your battery joins a load of others and goes through a process that recovers nearly everything in it.
1BreakingRotating hammers smash the batteries into pieces, separating them into five streams: plastic casing, lead grids, lead paste, acid and a sulphur paste.
2Plastic is pelletisedThe casing fragments are washed and turned into pellets, which are sold on to make new battery cases and other plastic products.
3Acid is neutralisedThe sulphuric acid is drawn off and treated. Some plants convert it into gypsum for the construction industry, others neutralise it for safe disposal.
4Lead is smeltedThe grids and lead paste go into a furnace and are melted down into unrefined lead.
5Lead is refinedThe molten lead is treated in refining kettles to draw out impurities, which come off as slag. What remains is pure lead.
6New batteriesThe refined lead is cast into ingots, either as soft lead or alloyed with other metals, and much of it goes straight back into new car batteries.
Done this way, around 90 to 95 per cent of the material in a dead battery is recovered and reused. Lead-acid batteries are among the most recycled products in the world for exactly this reason: nearly everything in them has a buyer.
What about electric and hybrid car batteries?
An EV or hybrid pack is a different job. It never goes near the breaking machine, because damaged lithium cells can catch fire. Instead, trained staff isolate the high-voltage system and remove the pack intact during the depollution stage of the vehicle recycling process.
From there it takes one of two routes. Packs with usable capacity left can get a second life in energy storage before they are ever broken down. When a pack is finally recycled, specialist processors recover lithium, nickel, cobalt, copper and aluminium, the materials that make these batteries expensive in the first place.
The rules covering all of this still date from 2009 and were written in the lead-acid era. The government is expected to consult during 2026 on updating them for the lithium age, so this is one area where the law is likely to change.
Where this fits when you scrap your car
The battery is one stop on a longer journey. The full journey of a scrapped car runs from collection to the shredder, and the engine is the other component with real scrap value of its own, covered in what a scrap engine is worth. The tyres go their own way too. If you are starting from scratch, the five steps to scrapping a car covers the whole thing in order.
Ready to scrap your car?
Get an instant price. Battery in, free collection, Certificate of Destruction issued.
Get a quoteFigures on battery composition provided by Dr S P Binks, Regulatory Affairs Director at the International Lead Association. Health effects of lead: Practical Action. Legal requirements: Waste Batteries and Accumulators Regulations 2009 (SI 2009/890), legislation.gov.uk. Checked 28 August 2026.
