Professional Laptop Battery Replacement Service Mumbai
Xigox provides expert laptop battery replacement in Mumbai with genuine OEM-grade cells, precise diagnostic testing, and manufacturer-spec installations. Certified battery health analysis, capacity testing, charge cycle verification. Dell, HP, Lenovo, Asus, Acer, MacBook batteries. Same-day replacement for 200+ laptop models. Solve battery draining fast, not charging, plugged in not charging, 0% stuck, battery health issues. Call +91 7499761196
Meet Our Battery Specialist
Arjun Patel – Senior Battery & Power Management Technician
- 10 years laptop battery diagnostics & replacement
- 5,400+ battery replacements completed
- Specialized training: Li-ion cell technology, charge controller diagnostics
- Certified: Dell Battery Specialist, HP Power Certification
- Expert in: Battery calibration, SMBus communication, ACPI firmware
- Stock specialist: Maintains inventory of 200+ laptop battery models
Signs Your Laptop Battery Needs Replacement
Watch for these symptoms: (1) Battery drains in <1 hour despite full charge, (2) "Plugged in, not charging" message, (3) Battery percentage jumps erratically (90%→20% suddenly), (4) Laptop shuts down at 30-50% battery, (5) Battery physically swollen/bulging (safety hazard!), (6) Windows shows "Consider replacing battery" warning, (7) Laptop only works when plugged in. If 2+ symptoms present, replacement recommended within 2 weeks—degraded batteries risk data loss from unexpected shutdowns.
Our 5-Step Professional Battery Replacement Process
Battery Health Diagnosis
Full battery report with BatteryInfoView, HWiNFO. Check wear level, cycle count, design vs. full charge capacity, cell voltages. Typical degradation: >20% = replacement needed.
Genuine Battery Sourcing
Match exact model number (Dell RN894, HP HS04, Lenovo L15L2PB2). Verify genuine OEM or premium aftermarket with Samsung/LG/Panasonic cells. No cheap Chinese knockoffs—we stock quality batteries only.
Safe Installation
Power off, discharge residual current. ESD-safe handling. Remove old battery (external: slide-lock release; internal: unscrew bottom cover, disconnect battery connector from motherboard). Install new battery securely.
Battery Calibration
Full charge to 100% → full discharge to 3-5% → recharge to 100% without interruption. Trains battery fuel gauge for accurate % reporting. Dell/HP BIOS battery test if available.
Performance Validation
Verify battery charges to 100%, holds charge during use, discharge rate normal (~10-15%/hour light use). Check Windows battery report, BIOS battery health shows "Excellent." 6-month warranty documented.
Battery Technology We Use
- Cell types: Li-ion (Lithium-ion), Li-Po (Lithium-polymer) depending on model
- Cell manufacturers: Samsung SDI, LG Chem, Panasonic (premium tier)
- Protection circuits: Overcharge, over-discharge, short-circuit, thermal protection built-in
- Smart features: SMBus communication, fuel gauge IC, charge/discharge FETs
- Capacity: Match or exceed original (e.g., 48Wh, 56Wh, 72Wh depending on model)
- Warranty: 6 months full replacement for defects, 500 charge cycles minimum lifespan
Mumbai Success Stories – Battery Replacements That Extended Laptop Life
Case 1: Kandivali Freelancer – HP Pavilion 15 "Plugged In, Not Charging"
Problem: Client's 3-year-old HP Pavilion laptop showed "0% available, plugged in, not charging" despite trying multiple AC adapters. Laptop only worked when AC connected; unplugging caused immediate shutdown. Freelance designer facing project deadlines.
Diagnosis: Battery health report showed 92% wear level (design capacity 41Wh, current full charge 3.2Wh). Battery chemically dead—cells no longer accept charge. Windows Event Viewer showed "Battery critical" errors. Original HP battery model: HS04 (4-cell, 2600mAh).
Solution: Replaced with premium aftermarket HS04 battery (LG cells, 2800mAh upgrade). Calibration: Full charge 3.5 hours → discharge test → recharge. Post-replacement battery report: 0% wear, 43Wh full capacity (exceeds original). Client's laptop now runs 4.5 hours on battery (was <10 minutes before).
Outcome: ✅ Laptop restored to portable use in 4 hours (same-day service). Cost: ₹2,400 (battery + installation + calibration). Client testimonial: "My 3-year-old laptop feels brand new! 4+ hours battery life means I can work from cafes again." 6-month warranty provided. Follow-up (2 months): Battery health still 100%, 0% wear.
Case 2: Borivali Student – Dell Inspiron 5570 Swollen Battery (Safety Hazard)
Problem: College student noticed laptop trackpad became "stiff" and difficult to click. Upon inspection, bottom case slightly lifted—clear sign of swollen battery pushing outward. Laptop still functioned but battery bloated to 2x normal thickness (extreme fire/explosion risk).
Diagnosis: CRITICAL safety issue—Li-ion battery swelling due to internal gas buildup (degradation byproduct). Battery model: Dell WDX0R (3-cell, 42Wh). Swelling damaged trackpad flex cable and cracked plastic bottom case. Immediate replacement mandatory—continued use could cause thermal runaway.
Solution: Emergency same-day service (waived express fee due to safety risk). Safely removed swollen battery (avoided puncturing—Li-ion fire hazard). Replaced with genuine Dell WDX0R battery. Repaired trackpad cable, replaced cracked bottom cover. Educated client on battery safety (never ignore swelling, stop using immediately).
Outcome: ✅ Hazardous battery safely disposed per e-waste guidelines. Laptop fully functional with new battery (5 hours runtime). Trackpad responsive again. Cost: ₹3,200 (genuine Dell battery premium + bottom cover ₹600). Safety lesson: Swollen batteries are NOT cosmetic—they're dangerous. Client relieved laptop didn't catch fire. Follow-up (3 months): Battery health 100%, no swelling, trackpad perfect.
Our Services:
- Same Day Service
- Free Pickup & Delivery
- 6-Month Warranty
- All Brands Supported
- 20+ years Experience
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