Do you come to CR Park and Greater Kailash for desulfation?

Yes — we serve all areas within 5 km of East of Kailash including CR Park, Greater Kailash I & II, Kalkaji, Defence Colony, Saket, Lajpat Nagar, South Extension, Okhla, and Nehru Place. We guarantee arrival in 30 minutes or the service is free.

30-Min Arrival Guarantee Or It's Free

Battery Dying
Repeatedly?
Restore It First.

Before spending ₹8,000–₹15,000 on a new battery, let us try pulse desulfation. CTEK's desulfation mode breaks down sulphate crystals and often restores 70–90% of original capacity. Doorstep service across South Delhi: East of Kailash, Nehru Place, Okhla, Lajpat Nagar, South Extension, Greater Kailash, Kalkaji, CR Park, Defence Colony and Saket.

Book Desulfation Call 9311211157

30-min or FREE Test before & after Pay after service

12v PitStop performing CTEK desulfation on a car battery in East of Kailash, South Delhi

DESULFATION · SOUTH DELHI

What is sulphation?

Why your battery loses charge — explained simply.

Sulphation is the most common cause of premature battery failure in India — and it is often completely reversible.

What happens inside your battery

When a battery discharges and sits unused — especially during Delhi summers — lead sulphate crystals form on the plates. These crystals progressively block the plates, reducing the surface area available to hold and deliver charge.

How pulse desulfation works

CTEK's desulfation mode sends precisely calibrated voltage pulses into the battery. These pulses break down and dissolve the sulphate crystals, freeing up the plate surface to accept and deliver charge again — without damaging the plates themselves.

What you get back

When sulphation is the primary problem, we typically recover 70–90% of the battery's original capacity. This translates to reliable starts, longer backup time, and a battery that often lasts 1–2 more years before replacement.

Konnwei KW720 before & after test

We test state-of-health, CCA, and internal resistance before and after the session. You see exactly how many milliohms of resistance were reduced and what percentage of capacity was recovered — not a promise, actual numbers.

Honest outcome — we tell you if it won't work

If the KW720 pre-test shows the battery's plates are physically shed or corroded beyond recovery, we tell you before starting — and won't charge you for a session that won't help. We only proceed when the data supports it.

Doorstep across South Delhi

No need to carry your battery anywhere. We come to your parking in East of Kailash, Nehru Place, Okhla, Lajpat Nagar, Defence Colony, CR Park, Kalkaji, Greater Kailash I & II, Saket, or South Extension.

Sound familiar?

Desulfation may be what you need if any of these apply.

Battery was charged multiple times at roadside shops — dies again within a week every time

Car sat unused for 2–6 months in apartment parking in GK, CR Park, or Defence Colony

Battery is only 2–3 years old but a mechanic is already recommending replacement

Battery charges to full but discharges very quickly — classic sign of reduced plate capacity from sulphation

Inverter battery not giving the backup hours it used to — despite being "fully charged"

Want to try a ₹499 recovery before committing to a ₹10,000+ replacement — that's exactly what desulfation is for

How it works

Step-by-step — from booking to recovered battery.

Book in 60 seconds

WhatsApp or call with your location and vehicle. We cover East of Kailash, Nehru Place, Okhla, Lajpat Nagar, South Extension, Greater Kailash I & II, Kalkaji, CR Park, Defence Colony, and Saket — all within 5 km. We confirm ETA immediately.

30-minute arrival or it's free

Technician arrives with the CTEK smart charger and Konnwei KW720. We guarantee 30 minutes in all our South Delhi zones. Miss the window? The entire session is free.

Konnwei KW720 pre-test — assess sulphation level

We measure state-of-health, CCA, and internal resistance. High internal resistance (above threshold for the battery's rated spec) is the key indicator of sulphation. We show you the numbers and confirm whether desulfation is likely to help before starting.

CTEK desulfation mode initiated

The CTEK is connected and automatically enters desulfation mode, sending calibrated pulses to break down sulphate crystals. This phase runs for 2–6 hours depending on the severity. You can leave the car unattended — we call when the session completes or if any issue arises.

Konnwei KW720 post-test — verify recovery

After the session, we run the KW720 again. You see exactly how much internal resistance dropped and what percentage of capacity was recovered. This is a measurable outcome — not a "it should be better now" guess.

Pay and go — or we advise next steps

If recovery was successful, pay ₹499 + GST and use the battery as normal. If the battery did not respond as expected — which we'll tell you honestly — we explain your options including replacement referral. No pressure, no obligation.

Our equipment

The tools behind successful desulfation.

Desulfation + Charging

CTEK Battery Chargers

CTEK's patented 8-stage algorithm includes a dedicated desulfation stage that sends precisely calibrated voltage pulses — not just higher voltage, which damages plates. It automatically transitions from desulfation into a full smart charge cycle, maximising what's recovered.

✓ Dedicated desulfation mode · Automatic progression to full charge · Safe for AGM, EFB & lead-acid

Measurement

Konnwei KW720

The KW720 measures internal resistance in milliohms — the single most accurate indicator of sulphation severity. We test before and after, so you see exactly how many milliohms were reduced and how much CCA was recovered. Real data, not a sales pitch.

✓ Measures internal resistance accurately · Before & after comparison · No guesswork

If Needed

OzCharge RM 1000

If the battery is too flat for the CTEK to start the desulfation cycle, the OzCharge RM 1000 capacitor jump starter safely brings it to the minimum voltage needed — without causing the voltage spikes that could make sulphation worse.

✓ Spark-free · Safe for modern ECUs · Brings battery to workable voltage without damage

Our technicians

We only recommend desulfation when the data says it will work.

We have seen sulphated batteries across every neighbourhood from CR Park to Nehru Place. We know when recovery is viable — and when it isn't. We tell you the truth either way.

10+ years of battery recovery experience — know which batteries can be restored and which cannot

Read internal resistance and SOH numbers before committing to a session — no wasted time or money

Will never claim desulfation worked without showing you the post-session KW720 numbers

Equipment calibrated before every visit — CTEK charged and KW720 verified for accurate readings

12v PitStop technician performing CTEK desulfation recovery on a battery in Greater Kailash, South Delhi

DESULFATION · GREATER KAILASH

Where we come to you

Desulfation in East of Kailash, Nehru Place, Okhla, Lajpat Nagar & Greater Kailash — all South Delhi.

All areas below are within our 30-minute response zone.

East of Kailash — Primary rapid-response zone

Nehru Place — Office & business district

Okhla — Industrial & residential

Lajpat Nagar — Residential & market area

South Extension — Residential colony

Greater Kailash I & II

Kalkaji — Residential & commercial

CR Park — Housing societies & apartments

Defence Colony — Bungalows & apartments

Saket — Mall parking & residential

Common questions

Desulfation FAQs — plain answers.

What is sulphation and why does it happen?

Sulphation is the build-up of lead sulphate crystals on the battery's plates. It happens when a battery is left in a discharged state for extended periods — common during Delhi summers when a car sits unused, or when a battery is repeatedly undercharged. These crystals block the plates and reduce the battery's ability to hold or deliver charge.

How much capacity can desulfation recover?

Results depend on the severity of sulphation and the battery's age. When sulphation is the primary problem and the plates are not physically degraded, we typically recover 70–90% of original capacity. We test with the KW720 before and after to show you exactly what was recovered.

Will desulfation always work?

No — and we are honest about this. If the battery's plates are physically shed or corroded, desulfation will not recover it. We test first with the KW720, show you the numbers, and recommend desulfation only when the data suggests it will help. If it won't, we tell you before starting — and won't charge you.

How long does desulfation take?

The CTEK desulfation mode runs alongside the charging cycle and typically takes 2–6 hours depending on severity. We usually initiate the session at your parking and you can go about your day. We call when it's complete or if any issue arises.

Is desulfation worth it before buying a new battery?

Almost always, yes — especially for batteries that are 2–4 years old. A desulfation session costs ₹499 + GST. A new battery for most cars costs ₹5,000–₹15,000. Even if recovery is partial, you extend the battery's life significantly. And we only proceed if the pre-test numbers suggest recovery is viable.

Related services

What often comes before or after desulfation.

Try a ₹499 recovery before spending ₹10,000+ on a new battery.

East of Kailash · Nehru Place · Okhla · Lajpat Nagar · Defence Colony · CR Park · Kalkaji · Greater Kailash · Saket · South Extension