Samsung Galaxy S20 & S21 Battery Replacement: Buy Now From £8.89

Samsung Galaxy S20 and S21 replacement batteries are in UK stock now from £8.89 — the fix for fast drain, sudden shutdowns, and a phone that won't hold charge. Buy directly below, dispatched fast from Manchester.

On this page

• Shop Galaxy S20 & S21 replacement batteries
• Got an S23, S24, or S25?
• Signs your Galaxy S battery needs replacing
• Why replace instead of upgrade
• Fitting overview
• FAQ

Shop Galaxy S20 & S21 replacement batteries

🛒 Buy Galaxy S20 Plus Battery – £8.99

🛒 Buy Galaxy S21 5G Battery – £8.99

Got an S23, S24, or S25?

Current-generation Galaxy S batteries (S23, S24, S25) are temporarily out of stock as we write this. Contact us with your exact model and we'll confirm sourcing and price — we regularly restock this range.

Signs your Galaxy S battery needs replacing

• The phone shuts down well above 0%, especially under load.
• Noticeably shorter screen-on time than when the phone was new.
• The phone runs hot during normal use or charging.
• Battery percentage jumps unexpectedly or drains in bursts rather than steadily.
• Visible swelling around the back cover — stop using the phone immediately.

Why replace instead of upgrade

Galaxy S20 and S21 still run current Android comfortably for calls, apps, and browsing. At under £9, a battery replacement is by far the cheapest way to fix "my phone doesn't last the day" — a fraction of the cost of any replacement device.

Fitting overview

Power down, remove the back glass (heat and a suction cup help release the adhesive seal), disconnect the battery connector before touching anything else, then release the adhesive pull-tabs slowly to lift the old cell without puncturing it. Fit the new battery, reconnect, test, then reseal with fresh adhesive. If you'd rather not do it yourself, a local repairer can fit it same-day.

FAQ

Which battery do I need — S20 or S20 Plus?

Check Settings > About phone for your exact model. S20 and S20 Plus batteries are different capacities and parts.

Will a new battery restore full performance?

Yes — a genuine-quality replacement resolves shutdowns and rapid drain caused by a degraded original cell.

Is this a DIY-friendly repair?

It's more involved than an iPhone battery swap due to the glued rear glass, but achievable with a proper opening kit and patience. If unsure, book a professional fitting.

When will S23/S24/S25 batteries be back in stock?

Contact us for the latest availability — we restock regularly and can confirm timing for your specific model.

Next steps

Buy your Galaxy S20 Plus battery or Galaxy S21 battery now. See our Galaxy A series battery guide for budget models.