How to Disassemble Xiaomi 10000 Verbank PB100LZM: detailed instructions with photos and tips

Xiaomi Mi Power Bank 10000 PB100LZM — One of the most popular portable chargers, because of its combination of compactness, capacity and reliability, but over time, even these devices fail, the battery inflates, stops working. USB-In most cases, repair is possible, but it will require disassembling the body, a non-trivial task due to the adhesive joint and fragile internal components.

This article will help you to open safely. PB100LZM, Without damaging the control board or the battery cells, we will go through the necessary tools, the sequence of actions, and also point out critical errors that can lead to a short circuit or breakage of the device. If you have never before disassembled electronics – do not worry: the instruction is adapted for beginners, but taking into account all the technical nuances.

⚠️ Warning: Disassembly of the overbank will void the warranty (if it is still valid) and can be dangerous if safety is violated. Li-ion batteries are sensitive to mechanical damage and overheating. If you are not sure of your skills, contact the service center.

Before starting work, be sure to discharge the overbank to 0% (the indicator should not burn when you press a button), this minimizes the risk of fire if the battery is accidentally damaged, and prepare a class D fire extinguisher (for metals) or dense fabric to extinguish possible flames.

1. Necessary tools and materials

For the Xiaomi disassembly PB100LZM You don't need expensive professional tools, but some tools need to be of high quality.

Here is a complete list of what will be required:

In addition, the following may be useful:

• 🧴 Silicone lubricant (for sealing the body during reverse assembly).
• 🔋 Multimeter (to check the voltage on the battery and board).
• 🧴 Clay. B-7000 (If you need to replace the adhesive layer after repair).

Important: Never use a knife or other sharp objects to open the body! This is almost guaranteed to damage the internal components or cut off the plumes.

2. Preparation of the superbank for disassembly

Before you start the autopsy, you need to turn off the device and prepare the workplace.

1. Clean the case of dirt. Rub Xiaomi's overbank with a napkin dipped in isopropyl alcohol - this will remove fat and dust that can interfere with disassembly.

⚠️ Warning: If the verbank is swelling (the body is deformed or the top cover is raised) - do not disassemble it yourself! Bloated batteries are extremely dangerous and can ignite at the slightest mechanical impact. In this case, contact a specialized service for the disposal of lithium batteries.

Also check if the indicator is on when you connect to the charge. If the power bank is not charging, but the light flashes, the problem may be the charge controller, not the battery, in which case disassembly will still be required, but the emphasis should be on the diagnosis of the board.

Discharged to 0%|Cleaned of dirt.|Photos of the hull taken|Workplace prepared|Tools checked.-->

Step-by-step instructions for disassembling the body

Xiaomi's body PB100LZM It's made up of two parts that are glued around the perimeter, and unlike screw joints, you can't just unscrew the mounts, you have to carefully separate the parts without damaging the internal components:

Step 1: Softening the glue

There are two ways to loosen the adhesive layer:

• With the help of a hair dryer: Heat the body around the perimeter (keep the hair dryer at a distance of 10-15 cm, the temperature is 60-80°C) for 2-3 minutes. Don't overheat! Lithium batteries begin to degrade at temperatures above 60°C.
• With alcohol: Apply isopropyl alcohol 90%+ You can use a brush or cotton swab to seam the body, and wait 5 to 10 minutes until the glue dissolves.

Step 2: Separation of the body

Insert a plastic mediator into the gap between the top and bottom of the case (start at the corner where the position is located). USB-Carefully drive the mediator along the seam, gradually increasing the gap. Apply the force evenly — if the resistance is too strong, heat the area again with a hairdryer.

Step 3: Disconnect the latches

After you walk around the perimeter, you'll hear the characteristic clicks -- these are the internal latches. Don't pull the lid sharply! Raise it 1-2 mm and check if something inside is disturbing (e.g., the plume of the indicator).

⚠️ Attention: If the body doesn't lend itself, don't apply excess force. You may have missed a hidden latch or the glue hasn't softened enough.

Inside you'll see:

• A battery (usually a 18650 or flat cell)
• Control board with charge/discharge controller chip.
• USB-port (soldered to the board or connected through a plume).
• Charge indicator (LEDs or small screen).

Diagnostics of internal components

After opening the case, you need to visually examine all the details for damage.

If the battery is blown up, it must be disposed of (don't throw it into ordinary garbage!). PB100LZM Replacement with Samsung cells is appropriate INR18650-35E or LG INR18650 MJ1 capacity 3500 mAh (two pieces connected in series).

To check the control fee:

1. Disconnect the battery (cautiously unsold or disconnect the connector).
2. Connect the multimeter in voltage measurement mode to the battery contacts. PB100LZM — 3.7-4.2 B per cell.
3. Check the resistance between + and - contacts USB-If the value is close to 0 ohms, the board shorts.

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If the superbank doesn't turn on, but the battery is working, the problem may be the fuse on the board. PB100LZM It is usually located near the USB-It looks like a small black rectangle with an inscription. F1 or FUSE. It can be replaced with a similar one with the same denomination (usually). 3A/32V).

5. Typical breakdowns and ways of their elimination

In most cases, Xiaomi's Verbank PB100LZM breaks down due to three reasons: battery wear, damage USB-port or control board failure. Let's look at each of these in detail.

1.The battery does not hold the charge or is inflated

Symptoms: Rapid discharge, spontaneous disconnection, deformation of the body.

Decision:

• 🔋 Replace the battery cells with new ones (see the compatibility table above).
• 🔧 Re-sweeten the balancing wires (thin red/black wiring going from cells to board).
• 🧹 Clean the board contacts from oxidation (use eraser or alcohol).

2. It's not working. USB-port

Symptoms: The device is not charged / does not give current, port luftitis.

Decision:

• 🔌 Re-drink. USB-port (you will need a soldering station with a thin sting and flux).
• 🛠️ Check the integrity of the tracks on the board (for mechanical damage, a jumper may be required).
• 🔍 Check the port contacts for oxidation (only clean with a plastic toothpick!).

3.Poverbank not included

Symptoms: The indicator does not respond to the button, there is no output voltage.

Decision:

• 🔋 Check the voltage on the battery (if you have a battery) <3.0B – a booster charge is required by a special device).
• 🔧 Replace the charge controller (microchip) TP4056 or similar).
• 🔌 Check the safety lock (see the tip above).

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If the overbank stopped charging after a fall, 90 percent of the time the problem is a circuit break or a battery disconnection, and a visual inspection under the magnifying glass will help identify microcracks.

6.Assemblying the overbank after repair

Xiaomi reverse build PB100LZM It's as accurate as disassembly. Follow these guidelines:

1. Check all connections. Make sure the indicator plume is tightly connected and the battery is soldered securely (or inserted into the connector).
2. Isolate the contacts. If you solder, seal the bare sections of the board with captone tape or shrinkage.
3. Apply a new glue layer. Use glue. B-7000 double-scotch 3M VHB Don't overdo it, the glue can get in!
4. Close the case. Combine the latches and press both halves tightly. Place a load (like a book) on top for 10 to 15 minutes to be reliable.

⚠️ Warning: After assembly, do not turn on the verbank immediately! Wait 1-2 hours for the glue to dry, and check with the multimeter that there is no short circuit between the two. + and - contacts USB-port.

If it's all put together correctly:

• Connect the verbank to charging - the indicator should light up.
• Press the power button - the indicator will show the level of charge.
• Connect the load (for example, a smartphone) – the consumption of current should begin.

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To extend the life of a refurbished superbank, charge it to 80-90% and do not discharge below 20%. Store in a cool place (but not in the refrigerator!).

7.Where to buy spare parts for Xiaomi PB100LZM

If original parts are required for repair, they can be found in the following places:

When buying batteries, pay attention to the date of manufacture (should be no older than 6 months) and the seller with a rating above 95%.

For the control board, look for sellers who show photos of the real product, which will reduce the risk of getting a non-working module. If you are not sure about compatibility, check with the seller whether the part is suitable for the model. PB100LZM (not PB100LZY or other modifications).

FAQ: Frequent questions about Xiaomi disassembly PB100LZM