Short answer: On a refurbished iPhone in India, 85% Maximum Capacity is the minimum you should accept, and 88% or higher is what you should insist on above ₹40,000. Apple itself treats 80% as the end of a battery’s rated consumer life, so anything in the low 80s is a phone you will be replacing the battery on within months — a ₹4,000 to ₹8,000 job depending on the model. NewAsNew states a measured band on every listing and never claims 100% on a used phone.

Prices are live as of 16 August 2026 and move with stock — check the linked product page for today’s exact price.

What Maximum Capacity actually measures

Open Settings, then Battery, then Battery Health & Charging on any iPhone and you will see a figure called Maximum Capacity, shown as a percentage. It is not a charge level. It is the battery’s current capacity measured against the capacity it had when it left the factory. A phone showing 87% will run for roughly 87% as long on a full charge as it did when new, assuming everything else about your usage is unchanged.

Two things follow from that definition and both matter when buying refurbished.

First, the percentage is relative to that model’s own original battery, not to any other phone. An iPhone 14 Plus at 86% still delivers more real hours than an iPhone 13 Mini at 95%, because the Plus started with a far bigger cell. Comparing percentages across models tells you very little on its own.

Second, it only ever moves in one direction. There is no software fix, no calibration trick and no charging habit that restores lost capacity. Anyone who tells you otherwise is selling something.

Apple’s 80% line, and why it is the number that matters

Apple designs iPhone batteries to retain up to 80% of their original capacity at a defined number of full charge cycles under normal conditions. That 80% figure is the consumer-grade threshold Apple itself uses: below it, the battery is considered to have completed its rated service life, and iOS begins showing a Service recommendation on the Battery Health screen.

This is why 80% is a hard floor and not a target. A phone at 81% is not “just below average” — it is a phone at the end of its designed battery life that happens to have not yet crossed the line where the software complains. If a listing shows a figure in the low 80s, price the battery replacement into what you are paying, because you will be doing it.

What 85% and 90% actually mean in hours

Percentages are abstract. Hours are not. The honest way to translate is proportional: a battery at 85% gives you roughly 85% of the runtime the phone gave when new, on the same usage pattern.

Maximum Capacity What it means in practice Our position
95%+ Effectively indistinguishable from new for most users. Rare on genuinely used stock. Excellent, but be sceptical of the claim
90–94% Roughly one hour less per day than new. Most people will not notice. Very good — buy with confidence
85–89% Around 1.5 to 2 hours less than new on a heavy day. A moderate user still reaches bedtime. Our recommended minimum
80–84% Two to three hours less. Heavy users will need a top-up by evening. Only with a discount that covers a replacement
Below 80% iOS shows a Service message. Peak performance may be throttled. Do not buy without replacing the battery

Add one adjustment for the phone itself. A small phone with a small battery, like the iPhone 12 Mini or 13 Mini, has less absolute capacity to lose, so the same percentage hurts more. On a Mini we would push the minimum up to 88%. On an iPhone 14 Plus or a Pro Max, 85% still leaves a lot of usable battery in absolute terms.

Why cycle count matters as much as the percentage

A charge cycle is one full 0 to 100% worth of discharge, however it accumulates — two half-charges make one cycle. Capacity loss tracks cycles far more closely than it tracks calendar age.

This is why two phones from the same launch year can show very different figures. A phone owned by someone who charged it once a day and one owned by someone who topped it up four times a day are different products by year three, even though both are described as the same model.

It is also why the phone’s age is itself a battery specification when you buy refurbished. An older iPhone has almost certainly accumulated more cycles than a newer one, which is one of the reasons we recommend paying the ₹4,600 gap between an iPhone 13 at ₹30,390 and an iPhone 14 at ₹34,990 in our iPhone 13 vs iPhone 14 comparison. You are buying fewer cycles as much as you are buying features.

How to check battery health yourself in 30 seconds

  1. Open Settings.
  2. Tap Battery.
  3. Tap Battery Health & Charging.
  4. Read Maximum Capacity. On newer iOS versions this screen also shows the Cycle Count along with manufacture and first-use dates.
  5. Check whether Peak Performance Capability says the battery is supporting normal peak performance, or shows a Service message.

Do this the moment the phone arrives, before the 7-day return window starts running down. If the figure does not match what the listing stated, that is a return, not a negotiation. This is exactly the check we describe in our refurbished iPhone buying checklist.

One warning specific to this market: if a battery has been replaced with a non-genuine cell, iOS may show an “Unknown Part” or “Important Battery Message” notice instead of a capacity figure, or the health screen may be unavailable entirely. Treat a missing Maximum Capacity reading as a red flag, not as a technical glitch. Our guide to verifying a refurbished phone is genuine covers what else to inspect.

What a battery replacement costs in India

If you do buy a phone with a tired battery, know the cost before you commit. Through Apple’s own authorised service providers in India, an out-of-warranty iPhone battery replacement typically runs in the region of ₹4,000 to ₹8,000 depending on the model, with the Pro Max models at the upper end. Third-party shops quote considerably less, but a non-genuine cell brings the Unknown Part warning, unpredictable capacity, and a phone that becomes much harder to sell on.

Treat this as the correction factor on any cheap listing. A phone at 81% that is ₹2,000 below the market is not a bargain — you are ₹2,000 to ₹6,000 behind after the replacement, and you have lost the time.

Our honest position on battery health

We state a measured battery health band on every Grade A Certified listing. We do not claim 100% on a used phone, because a used phone is not at 100%, and any seller advertising 100% on a genuinely used device is either quoting the battery’s charge level rather than its capacity, or is not telling the truth.

Batteries are excluded from our 6-month NewAsNew Assured warranty. They are also excluded from Apple’s warranty and from every mainstream brand warranty, because a battery is a consumable part that wears with use. We would rather state that plainly than let you discover it during a claim. What you do get is a stated measured figure before you pay, a 50-point quality check on every unit, a GST invoice and 7 days to return the phone if the number does not match.

Who should not buy a refurbished iPhone at all

  • You are away from a charger for 14 hours a day. Field sales, long-haul driving, site work. Buy new, or buy a big-battery model like the iPhone 14 Plus at ₹39,490 and accept that you may replace the battery in a year.
  • Battery anxiety would genuinely bother you. Some people check the percentage twenty times a day. If that is you, a used battery will make you unhappy no matter what the number says.
  • You want a single warranty covering everything. No warranty in the market covers batteries, but if you want one company responsible for the whole device for two years, buy new.

Frequently asked questions

What is a good battery health percentage for a refurbished iPhone?

85% Maximum Capacity is a sensible minimum, and 88% or higher is what to insist on when spending above ₹40,000. Apple treats 80% as the end of a battery’s rated consumer life, so anything in the low 80s means a replacement is due soon. On small-battery models like the iPhone 12 Mini or 13 Mini, push your minimum up to 88%, because there is less absolute capacity to lose.

Is 85% battery health good enough on a used iPhone?

Yes, for most people. At 85% you get roughly 85% of the phone’s original runtime, which for a moderate user means reaching bedtime without a top-up and for a heavy user means one charge during the day. It is well above Apple’s 80% service threshold. If you are a very heavy user or the phone is a small model, look for 90% instead.

How do I check battery health on an iPhone?

Go to Settings, then Battery, then Battery Health & Charging, and read the Maximum Capacity percentage. Newer iOS versions also show the Cycle Count and the battery’s manufacture and first-use dates on the same screen. Do this the day the phone arrives, before your return window closes. If the screen shows an Unknown Part message instead, the battery is not genuine.

Can iPhone battery health be restored or reset?

No. Maximum Capacity reflects real chemical wear in the cell and only moves downward. No app, calibration routine, charging habit or software update restores it. The only way to return a phone to full capacity is a physical battery replacement, which in India typically costs between ₹4,000 and ₹8,000 at an authorised service provider depending on the model.

Why does battery health drop faster on some iPhones?

Because capacity loss tracks charge cycles, not calendar months. Someone who tops up four times a day accumulates cycles far quicker than someone who charges once overnight. Sustained heat, which is common in Indian summers and while fast charging in a car, also accelerates wear. Two phones of the same age can therefore show very different figures.

Does NewAsNew replace the battery on refurbished iPhones?

We state the measured battery health band on each listing rather than promising a replacement, so you know exactly what you are buying before you pay. Batteries are excluded from our 6-month NewAsNew Assured warranty, as they are from Apple’s and every mainstream brand warranty, because a battery is a consumable part. Every unit still passes our 50-point quality check and carries 7-day returns.

Should I pay more for a refurbished iPhone with higher battery health?

Usually yes, if the gap is more than a few percentage points. A battery replacement costs ₹4,000 to ₹8,000 in India, so paying ₹3,000 extra for a phone at 91% instead of 82% is straightforwardly good value. Compare the price difference against replacement cost rather than treating the cheaper listing as the better deal.

Is a phone with 79% battery health worth buying?

Only at a price that already accounts for a battery replacement. Below 80% iOS shows a Service recommendation and may reduce peak performance to prevent unexpected shutdowns. Treat such a phone as its market value minus ₹4,000 to ₹8,000, and be aware that a non-genuine replacement cell will trigger an Unknown Part warning and hurt resale value later.

The honest bottom line

Battery health is the single most important specification on a refurbished iPhone, more important than the chip and more important than the camera. Set your floor at 85%, raise it to 88% above ₹40,000 and on small models, and refuse to buy from anyone who will not state a measured figure before you pay.

And check it yourself on day one. Settings, Battery, Battery Health & Charging. Thirty seconds of work that protects a purchase worth tens of thousands of rupees. If you want to see how this plays out across specific models and prices, our best refurbished iPhones under ₹50,000 and under ₹30,000 guides list what is actually in stock, and is it safe to buy a refurbished phone in India covers the wider risks.

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Still deciding? Message us on WhatsApp (+91 79822 35917) with your budget and how you will use it, and we will tell you honestly whether this is the right pick for you.

Written by the NewAsNew team — NextG Serve Pvt. Ltd., New Delhi. We have been selling electronics since 2020 and refurbished and unboxed devices since 2022. Read our story.