How much is the worn-battery deduction?

Short answer: Battery health below 80% deducts 600–1,800 THB by model (genuine replacement + handling included). Every iPad deducts a flat 1,500 THB. Above 80%, no deduction at all.

Why 80%?

80% is the line where a battery stops holding charge well enough to resell without replacing — so the shop uses one rule for every device. Below the line the deduction is the same whether you are at 79% or 60%. How to check your battery health takes 10 seconds.

Battery deduction table by model

Just report your honest battery number when you get a quote and the system calculates that model's deduction automatically.

Should you replace the battery before selling?

Usually no — the deduction already covers handling end to end, so replacing it yourself wastes time. Report the real number and let the shop handle it.

Does battery affect the grade?

Battery and grade are scored separately. Grade looks at marks and exterior condition; battery looks at the number only. A beautiful phone at 75% still gets grade A, plus the battery deduction from the table. Every deduction shows on the price screen before you submit.