Apple iPhone 13 Pro Max will not charge or charges slowly

6.7-inch all-screen OLED, at 2778-by-1284 at 458 ppi. That matters more than it sounds — a procedure written for a different size in the same line puts controls in different places, and gestures that depend on reach behave differently.

Lightning. A USB-C cable will not fit at all, which is the usual explanation when a charger that works on a newer iPhone in the same household does nothing here. Lightning cables also fail internally at the strain point, so a cable swap is the first test for slow or intermittent charging.

Face ID. It is deliberately quick to refuse when not confident, which is why darkness, strong backlight, unusual angles and lying down all reduce it — and why a case lip or a screen protector over the sensor area disables it entirely.

The A15 Bionic. This determines how long the model keeps getting iOS updates, and it is the reason an app can drop support for this iPhone while running fine on a newer one — a support-window matter rather than a fault to troubleshoot.

128GB/256GB/512GB/1TB. Before assuming capacity is the problem, read the storage breakdown: photos and video are usually the dominant category, and a full recently-deleted album is the most common reason deleting appears to free nothing at all.

No — water resistant, rated IP68, which Apple specifies as a maximum depth of 6 metres for up to 30 minutes under IEC standard 60529. That is a laboratory figure for a new device in fresh water; it degrades with age, drops and seal disturbance, and liquid damage is not warranted.

Yes — Dual eSIM, with two active eSIMs and storage for eight or more profiles. Note that the default line for calls, for messages and for cellular data are three separate settings, and crossing them produces calls on one number while data or messages use another.

Wi-Fi 6 (802.11ax) with 2x2 MIMO. That is worth knowing before blaming the phone for slower Wi-Fi than a newer device on the same network — a router running a newer standard falls back to what the phone supports rather than refusing it, so the difference is specification rather than fault.

Bluetooth 5.0. Version affects range, reconnection behaviour and which accessory features are available. A newer accessory paired here operates at this version's capabilities rather than failing, which is regularly mistaken for a pairing fault when the accessory simply cannot do everything it does on a newer phone.

1000 nits maximum brightness (typical). Brightness is among the largest single consumers of battery, so outdoor use at full brightness costs real runtime — and poor outdoor readability on this model is usually this figure rather than a display fault.

3x optical zoom in, 2x optical zoom out; 6x optical zoom range. If a close-up will not focus at the long end, that is normally the telephoto's minimum focus distance rather than a fault — taking the same shot at 1x confirms it in seconds.

Apple rates it at up to 15W over MagSafe. Wattage differs across this line, so a charger that fast-charges a newer iPhone may deliver less here — and if wireless charging has stopped while cable charging works, take the case off first, because a metal plate or a card defeats the alignment entirely.

Apple rates it at up to 50% charge in around 30 minutes. That assumes an adequate adapter — a low-output adapter, a laptop USB port or an old car charger falls well short, and that is the usual reason a phone charges far more slowly than the specification suggests.

Apple rates it at up to 28 hours of video playback. Judge your runtime against that figure and your own history rather than against a different iPhone — the rating varies widely across this line.

4K video recording at 24, 25, 30 or 60 fps. Resolution and frame rate are the dominant factor in how fast video fills storage, and they push the phone hardest thermally — sustained high-frame-rate recording is the most common reason a camera stops mid-take.

Take the case off and check what is inside it. On a MagSafe phone the magnets do the alignment, and a card, a wallet or a magnetic mount plate between phone and charger prevents both the alignment and the transfer entirely — while cable charging carries on working perfectly.

The port, with a bright light. Compacted lint is the most common cause by a wide margin — every insertion presses it further in, so it accumulates invisibly over months and then presents suddenly as a port that will not hold a cable. A clean port shows the contacts at full depth.

Phone off, a wooden or plastic toothpick, gently, working the debris out rather than pushing it in. Never a metal pin — the contacts are fragile and bridging them is worse than the lint. Not compressed air forced into the port, and nothing liquid.

That is nearly always the cable failing internally at the strain point, or lint holding the connector off its full seat. Both are cheap to rule out: swap the cable first, then inspect the port. A genuinely damaged port is loose in every orientation with every cable.

Leave it on a known-good charger for at least half an hour before concluding anything. A deeply discharged battery has to trickle for a while before the phone can display anything at all, and judging it dead after two minutes is a common and expensive mistake.

Temperature. Both major platforms suspend charging outside a safe band and do not always tell you they have. A phone in a sunlit car, or outdoors in a hard frost, is outside that band — bring it to room temperature and it will resume.

The detection is deliberately conservative and can persist after the port feels dry to you. Leave it unplugged, port down, in moving air for several hours. Do not apply heat, which drives moisture inward, and do not use rice, which leaves dust in the port.

Check the adapter's output rating against what the phone supports. A low-output adapter, a laptop USB port or an older car charger supplies a fraction of what a modern phone expects, and the symptom is exactly this — it charges, just barely, and better with the screen off.

Take the case off and centre the phone on the pad. Coil alignment is tighter than it looks, and a thick case, a metal plate or a card in the case defeats it entirely. Working without the case is the finding.

Only after the cable and the port are excluded. A faster adapter cannot help a phone whose port is packed with lint or whose cable has failed internally, and those two account for most of these faults. Test the cheap things first.

That points at software rather than the hardware path — charge negotiation is software too. A force-restart with the charger connected is safe, fast, and is occasionally the entire fix.

Use one that meets the phone's specification, whether or not it is the original. What causes trouble is the opposite end of the range: very old adapters, unbranded ones with no stated output, and computer ports — all of which supply less than the phone expects.

Stop charging it immediately. A lifting back or screen means the battery is swelling, which is a stop condition regardless of how well the phone otherwise works. Do not compress it, do not puncture it, and do not leave it charging unattended.

No. It is scoped to A2484/A2641/A2643/A2644/A2645. Apple iPhone family; connector, modem, camera, biometric and iOS eligibility vary by exact model.

Record the complete model identifier, exact message or indicator, software/firmware where visible, the operating stage and what still works.

A reset can erase accounts, networks, maps, schedules or preferences without distinguishing not charging, slow charge. The ordered checks preserve that evidence.

Stop for heat, swelling, liquid, corrosion, melted insulation or bent contacts.