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Laptop Battery Replacement in Dhaka — Complete 2026 Price & Service Guide

14 June 2026 · 9 min read · BAYAS Editorial

Your laptop battery is the most abused component in the machine. Plugged in all day, drained to zero, exposed to Dhaka's 35°C+ heat, and occasionally overcharged by an unstable power supply. It is no surprise that batteries are the second most common laptop repair in Dhaka (after screen damage).

If your laptop battery is swelling, not holding a charge, or making your laptop shut down at 30%, this guide covers everything you need to know about replacing it in Dhaka — including prices by brand, how to spot genuine batteries, and when to repair instead of replace.

Laptop battery replacement Dhaka guide — BAYAS technician with battery

Signs Your Laptop Battery Needs Replacement

1. Battery swelling (immediate action required)

If the trackpad is pushing up, the bottom case has a bulge, or you hear a cracking sound when pressing on the laptop base — stop using the device immediately. A swollen lithium-ion battery is a fire risk. Do not charge it. Do not poke it. Call a technician.

BAYAS handles swollen battery replacement safely. We follow proper disposal procedures for lithium-ion cells. WhatsApp 01712-644590 for emergency service.

2. Battery dies quickly

If your laptop ran for 4 hours on a full charge when new and now dies in 30 minutes, the battery has degraded. Lithium-ion cells lose capacity over time and are accelerated by heat — which means Dhaka's tropical climate takes a toll.

3. Laptop shuts down at 20–30%

This is a calibration issue or a failing cell. The battery reports a charge level, but the actual voltage drops below the threshold needed to keep the system running. A replacement is the only real fix.

4. Battery not charging

If the battery icon shows "plugged in, not charging" or it charges only when the laptop is off, the battery may have entered protection mode (common after deep discharge) or the charging circuit on the motherboard may have failed.

DIY Checks Before Replacing

Before you spend money on a new battery, try these quick checks:

Check battery health in Windows

Open Command Prompt as Administrator and type:

powercfg /batteryreport

This generates an HTML report showing design capacity, full charge capacity, and cycle count. If full charge capacity is below 80% of design capacity, it is time for a replacement.

Check battery health on Mac

Click the Apple icon → System Settings → Battery. On newer macOS versions, go to System Information → Power and check "Cycle Count" and "Condition."

Industry guideline: Most laptop batteries are rated for 300–500 charge cycles (MacBooks: 1,000 cycles). Beyond that, expect reduced life.

Check for swelling

Place the laptop on a flat surface. If it rocks, the battery has swollen. On MacBooks, check if the trackpad is clicking properly — a swollen battery presses up on the trackpad from below.

Reset SMC / BIOS

Some charging issues are software-related. On Intel Macs, resetting the SMC can restore normal charging behavior. On Windows laptops, a BIOS reset or removing the battery and holding the power button for 30 seconds can discharge residual power and fix charging lockout.

If these checks do not help, professional diagnosis is needed. BAYAS technicians can run a full battery and charging circuit diagnostic as part of our laptop repair service.

Laptop Battery Replacement Price Guide — Dhaka 2026

Below are fair prices for genuine or grade-A replacement batteries installed at your home in Dhaka.

Laptop brand / category	Battery price (BDT)	Labor	Total estimate
HP (standard models)	2,500 – 4,500	800 – 1,200	3,300 – 5,700
Dell (standard models)	2,500 – 4,500	800 – 1,200	3,300 – 5,700
Lenovo / ThinkPad	3,000 – 5,500	800 – 1,200	3,800 – 6,700
ASUS (standard)	2,800 – 5,000	800 – 1,200	3,600 – 6,200
Acer	2,500 – 4,500	800 – 1,200	3,300 – 5,700
MSI / Gaming laptops	4,000 – 7,000	1,000 – 1,500	5,000 – 8,500
MacBook Air (2018+)	7,000 – 14,000	1,500 – 3,000	8,500 – 17,000
MacBook Pro (2016+)	9,000 – 18,000	2,000 – 4,000	11,000 – 22,000
Xiaomi / Huawei	2,500 – 4,000	800 – 1,200	3,300 – 5,200

Note: These prices are for standard-capacity batteries (6-cell/4-cell). Extended-capacity and high-cycle-count batteries cost more. BAYAS uses branded batteries with warranty. For current pricing on your specific model, WhatsApp 01712-644590.

Genuine vs Cheap Battery — What You Need to Know

Genuine / OEM batteries

Pros: Matches original specifications, safe, reliable, full capacity
Cons: More expensive
Warranty: 6–12 months
Source: Authorized distributor or OEM

Grade-A compatible batteries

Pros: Good quality, meets or exceeds OEM specs, well-tested
Cons: Branding not original
Warranty: 6–12 months
Source: Reputable third-party manufacturers (e.g., Green Cell, KingSener)

Cheap / counterfeit batteries

Pros: Cheapest option (BDT 1,000–2,000)
Cons: Untested cells, incorrect capacity labels, no safety protection circuit, risk of swelling and fire
Warranty: None
Source: Unlabeled, no brand, sold on Facebook Marketplace

Bottom line: A BDT 1,500 battery that swells in 3 months and damages your laptop chassis is not a deal — it is a liability. BAYAS uses only genuine or grade-A batteries from trusted suppliers.

Laptop Battery Replacement Process at BAYAS

Step 1: WhatsApp your laptop model

Send your brand, model name, and battery symptom to 01712-644590. Include a photo of the battery indicator if possible.

Step 2: Get a quote

We reply within 30 minutes with the battery price (genuine and compatible options), labor cost, and available time slots.

Step 3: Home visit

Our technician arrives at your home or office with the battery, tools, and anti-static equipment.

Step 4: Diagnosis confirmation

We run a battery health check to confirm replacement is needed. If the issue is actually a charging circuit fault on the motherboard, we explain the difference and adjust the plan. For chip-level charging port repair, see our motherboard repair service.

Step 5: Replacement

Non-glued batteries (most Windows laptops): The battery is unscrewed, disconnected, and replaced. Takes 15–30 minutes.
Glued batteries (MacBooks, some ultrabooks): The battery adhesive is carefully dissolved, the old battery removed, and the new one installed. Takes 45–90 minutes.

Step 6: Calibration and test

We charge the new battery to 100%, run a discharge test, and verify health reporting. You confirm everything works before payment.

Dhaka-Specific Battery Issues

Heat degrades batteries faster

A lithium-ion battery's life is measured at 25°C. At 35°C (a normal Dhaka afternoon), battery degradation doubles. At 40°C+ (inside a laptop running under load in an uncooled room), degradation accelerates even more.

Tip: Keep your laptop on a hard surface (not a bed or pillow) to allow heat to escape. Consider a cooling pad during Dhaka summers. See our computer maintenance service for preventive care.

Power surges kill charging circuits

During load-shedding cycles, power flickers on and off. Cheap UPS units and surging voltage can damage the charging IC on your laptop's motherboard — making it look like the battery is dead when the real fault is on the board. For power backup protection, see our UPS repair service.

BAYAS technicians always test the charging circuit before replacing a battery. If the motherboard charging IC is the problem, our chip-level motherboard repair fixes it without replacing the entire board.

Counterfeit batteries flood the market

Facebook Marketplace and unlabeled shops sell batteries that claim 56 Wh capacity but deliver 18 Wh. Worse, these batteries often lack the protection circuit board (PCB) that prevents overcharging and short circuits — creating a genuine fire hazard.

Frequently Asked Questions

How long does a laptop battery last in Dhaka?

In Dhaka's climate, most laptop batteries last 18–30 months before noticeable degradation. With good habits (avoiding 100% charge all the time, keeping the laptop cool), you can extend this to 2–3 years.

How much does a laptop battery cost in Dhaka?

Standard Windows laptop batteries cost BDT 2,500–5,500 for genuine replacements. MacBook batteries cost BDT 7,000–18,000 depending on model. See the full price table above for brand-specific pricing.

Can I replace my laptop battery myself?

On older laptops with removable batteries, yes — it is an easy swap. On modern laptops with glued-in batteries (most ultrabooks and all recent MacBooks), DIY replacement carries real risk. The adhesive is strong, the battery is fragile, and puncturing a lithium-ion cell causes a fire. We recommend professional service for glued batteries.

Do you replace laptop batteries at home in Dhaka?

Yes. BAYAS provides laptop battery replacement at your home across all 36 Dhaka zones. Most replacements complete in under 60 minutes.

Will a new battery make my laptop faster?

No — a new battery only affects battery life and charging behavior. If your laptop is slow, the issue is likely storage, RAM, or thermal throttling. See our computer upgrade service for performance solutions.

What should I do with my old laptop battery?

Do not throw it in the trash. Lithium-ion batteries contain hazardous materials. BAYAS accepts old batteries for safe disposal when we install a new one.

My laptop charges but dies quickly on battery — is it the battery?

Almost certainly yes. If the laptop runs fine while plugged in but dies quickly on battery, the cells have degraded. If it also shuts down while plugged in under load, the problem may be the charger, motherboard, or battery together — a diagnostic is needed.

This guide was written by BAYAS Editorial, based on 5,000+ service visits across 36 Dhaka zones since 2018. Prices reflect the Dhaka retail market as of June 2026. Last updated: June 14, 2026.