Diagnosed at your doorstep · 30-60 min
Don’t buy a battery yet. The fault is the charger in 22% of cases, the DC jack in 18%, and the charging IC in 15% — not the battery itself. We test all four before quoting. ₹149 visit, most fixes under ₹6,000, no Fix — No Fee.
Eight charging-issue patterns. The pattern tells us which of the four components has failed.
Windows shows charger detected but not charging. Could be charger output, DC jack, or charging IC.
Charges normally then stops. Often a battery-care setting; sometimes a fuel-gauge calibration issue.
Need to hold the cable at a certain angle. Cracked DC jack solder joint or worn charger pin.
Windows doesn’t see the battery at all. Battery connector unseated or charging IC failed.
Cell capacity has degraded. Battery replacement is the fix — charging circuit is fine.
Charger’s internal capacitors aging. Replace before it fails completely or damages charging IC.
Modern USB-C / Thunderbolt laptops — can be port damage, failed PD controller, or wrong charger.
On for a few minutes, off, on. Loose connector somewhere — could be battery, jack, or board.
Charging a laptop is a four-stage handshake. Power leaves the wall outlet, runs through the switching power supply in the charger brick, arrives at the DC jack on the laptop (or via USB-C / Thunderbolt 4), enters the charging IC on the motherboard, and finally reaches the battery through a connector and a fuel-gauge chip. Power flow at any stage can fail, but customers tend to assume the last stage — the battery — is the problem because that’s where they see the symptom.
This assumption costs money. In our diagnosis logs, only ~45% of “not charging” cases turn out to be the battery itself. The other 55% break down as: charger output failure (~22%) — the brick has degraded electrolytic capacitors and can’t deliver clean voltage under load; DC jack damage (~18%) — the metal contact inside the laptop’s charging port has bent or the solder joint has cracked from years of cable insertion; charging IC failure (~15%) — the chip on the motherboard that negotiates power flow has been damaged by surge, liquid, or just age. Each has a distinct fix at a distinct price. Selling someone a battery when the fault is in the charger is a textbook upsell — we don’t do it.
USB-C charging adds new failure modes that didn’t exist on older laptops. A USB-C Power Delivery (PD) negotiation involves the charger and laptop exchanging digital messages about voltage and current capability before any real power flows — modern PD 3.1 handles up to 240W. The PD controller chip on the laptop’s motherboard manages this handshake. If the chip fails, the port looks fine and the charger looks fine, but no power flows. Diagnosis requires a USB-C protocol analyser, not just a multimeter. We see this most commonly on 2-3 year old M1 MacBooks and on Dell XPS / HP Spectre laptops with multiple USB-C ports.
The 80% charge cap deserves a separate note because it confuses many customers. Lenovo Vantage, MyDell, MyAsus, MyHP, and macOS all have a battery-care mode that deliberately stops charging at 60-80% to extend battery lifespan — lithium-ion cells age faster when held at 100% all day. If your laptop suddenly stops at 80%, check the manufacturer’s utility for this toggle before assuming a fault. If the cap is off and the laptop still stops short, then the fault is real — usually a fuel-gauge IC that’s lost calibration, fixable by recalibrating in software or replacing the IC.
The diagnosis path is straightforward. We test the charger output with a multimeter under load (most fakes show clean voltage at no load and collapse under draw). We probe the DC jack continuity with the laptop powered. We measure the laptop’s charging-rail voltage at the charging IC. We pull the battery report (`powercfg /batteryreport` on Windows, Battery Health on macOS) to see actual capacity vs design. Within 30 minutes we know exactly which of the four stages has failed, and we quote that fix specifically — not a worst-case guess.
30-60 minute diagnosis. Most fixes complete same visit. Chip-level work goes to workshop for 1-3 days.
Charger, DC jack, charging IC, battery — multimeter + battery report. Rules out the cheap fixes first.
Charger / jack / IC / battery — whichever is the actual fault, in writing, before chargeable work.
Charger / jack / battery done at doorstep. Charging IC chip-level goes to workshop.
Verify full charge cycle works. Battery health reading shown to you. 30-day warranty.
The right price depends on which stage actually failed. Final price fixed at the diagnosis stage.
₹149 diagnosis covers full four-stage testing. 30-day warranty on workmanship. No Fix — No Fee: if we attempt a fix and can’t complete it, you pay only ₹149.
What customers ask before assuming the worst about their battery.
powercfg /batteryreport for design-vs-current capacity. We do all four tests at doorstep + charging-IC voltage probe."Plugged in, not charging" can be the battery, charger, DC jack, or charging IC. These are the related diagnostics.
If the battery is the fault — dead cell module, calibration loss, swelling — replacement restores full charging.
A worn charger that under-volts can't initiate charge. Genuine OEM 65W/90W/130W adapter is the fix.
Wiggle the cable to charge? DC jack solder repair on the motherboard fixes intermittent charging.
If the charger is good and battery is healthy, the charging IC on the board is at fault. Chip-level repair.
Charging fault sometimes shows up as power button issues — both share the SIO chip pathway.
If the laptop won't charge AND won't turn on, no-display + charging diagnosis at one visit.
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WhatsApp us your laptop model + the exact symptom (LED on? plugged-in not charging? stuck at 80?). We’ll likely-cause-range over WhatsApp before sending a technician. ₹149 visit, No Fix — No Fee.