Power Bank Xiaomi 16000 mAh disassembly: instructions with photos, diagrams and warnings

Xiaomi Mi Power Bank 16000 mAh disassembly may be needed to replace battery cells, repair control boards or clean contacts. However, this device is not designed for self-service - the manufacturer glues the case and uses non-collectible connections. Without the right approach, you risk damaging the battery, causing a short circuit or even a fire.

In this article, we will take a closer look at the disassembly process, taking into account the features of the PLM05ZM (2nd generation) and PLM13ZM (3rd generation, known as Mi Power Bank 3 Pro). You will learn what tools will be required, how to safely open the case and what to do with the internal components. Follow the instructions carefully - lithium batteries require careful handling.

⚠️ Warning: Disassembly of the Verbank will void Xiaomi's warranty and could cause the device to fail.If you're unsure of your skills, contact a service center.Lithium batteries are explosive if damaged!

1.Preparation: security tools and measures

Before disassembling, gather the necessary tools and prepare the workplace.

• 🔧 Plastic mediators (or guitar mediators) – to separate the glued parts of the body.
• 🔨 Thin screwdriver with a flat sting (1-2 mm) - for slapping latches.
• 🔥 Thermocle or superglue - for reverse assembly (original Xiaomi adhesive disposable).
• 🧤 Gloves and safety glasses – Lithium cells contain caustic electrolytes.
• 📏 Plastic tweezers - for extraction of plumes and small details.

Work on a non-combustible surface (ceramic tiles, metal pallet) and keep sand or a class D fire extinguisher (for lithium fires) on hand. Don't use metal tools to separate the case - they can puncture the battery.

⚠️ Warning: If the verbank is swelling, deformed or hissing, DO NOT try to break it up on your own. These are signs of an unstable chemical reaction inside the cells. Immediately place the device in a sealed container (for example, a can of salt) and dispose of it through the hazardous waste reception points.

External inspection and model identification

Make sure you have Xiaomi Mi Power Bank 16000 mAh, not another model.

• 📦 PLM05ZM (2nd generation: matte plastic, two USB-Port (one Quick Charge), indicator of 4 LED.
• 📦 PLM13ZM (3rd generation, Mi Power Bank 3 Pro: glossy case, three ports (including USB-C), percentage).

If the model is different (e.g., PLM03ZM at 10,000 mAh), the instruction may not fit - the internal layout is different.

Check the case for hidden screws. Most of the time, there are none, but some modifications (e.g. for the European market) may have screws under rubber legs. Use a hair dryer at a minimum power (no more than 60°C) to soften the adhesive around the perimeter of the case.

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If the verbank doesn't turn on, check it with a multimeter first. + and-- contacts USB-The voltage should be in the range of 4.8-5.2 V. If there is no indication - the problem is in the control board or the circuit break.

3. Separation of the body: step-by-step instructions

The Xiaomi Power Bank 16000 is glued around the perimeter and has internal latches.

1. Insert a plastic mediator into the gap between the top and bottom of the case. Start at the corner next to the bottom. USB-Ports are thinner than the glue layer.
2. Carefully drive the mediator along the seam, gradually separating the halves. If you feel resistance, do not push harder, and warm up the place with a hairdryer (maximum 10 seconds!).
3. After separation 2/3 Remove the top cover of the perimeter. Be careful: tracer plumes may be glued inside (in models with the upper cover). LED-display).

Inside you'll see:

• 🔋 Two lithium cells 18650 (8000 mAh each) connected in parallel.
• 🔌 Control board with charge/discharge controller (marking) BQ25703A or similar).
• 📶 Thermistor (temperature sensor) – a thin black wire soldered to one of the cells.

Made sure that the model PLM05ZM/PLM13ZM| Prepared non-combustible surface |Switched off the verbank from charging for 24 hours |Dressed gloves and glasses |Tested voltage multimeter-->

⚠️ Warning: If you smell a strong chemical smell on the autopsy, or if you see a white plaque on the cells, it's a sign of electrolyte leakage. Stop disassembling immediately, wash your hands with soap and water, and ventilate the room.

4. Removal of battery cells

The 18650 cells in Xiaomi Power Bank 16000 are soldered to a point welding control board. Don't try to solder them off with a soldering iron, it could overheat the battery.

1. Disconnect the indicator plume (if any) and the thermistor. Remember their location - when you reverse assemble it is important not to confuse polarity!
2. With the help of bogocreators, gently snack on the metal contacts at the base of the cells (without touching the batteries themselves!).
3. Remove the cells by smacking them with a plastic mediator. If they're stuck to the casing, use isopropyl alcohol to dissolve the glue.

Note the cell markings. The original Xiaomi superbanks use LG INR18650HG2 or Samsung INR18650-35E batteries. If you are planning a replacement, choose cells with similar parameters:

⚠️ Critical error: Never use cells from different manufacturers or with different degrees of wear in the same overbank, which will lead to imbalance of voltages and reduce the life of the device by 2-3 times.

5. Diagnostics and repair of control board

If the overbank is not charging or is not giving off current, the problem may lie in the control board.

• 🔥 Burnt controller (marking) BQ25703A, TP4056 The reason is overload or short circuit.
• 🌡️ Faulty thermistor – the superbank refuses to work in heat or cold.
• 🔌 Oxidized contacts USB-port-soldier.

For diagnosis:

1. Call the multimeter chain between USB-The resistance should be close to 0 ohms. + - contacts).
2. Check the voltage at the controller output (points B+ and B-). If it is not present when the charger is connected, the board is faulty.
3. Check the circuit boards for blackened resistors or capacitors, and replacing them can restore performance.

If you need to change the board, choose an analogue with the same characteristics. for PLM05ZM, a board with Quick Charge 2.0 support will suit, for PLM13ZM, a board with USB-C Power Delivery.

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The most common reason for failure of the control board is the use of non-original chargers with voltages above 5.1 V. Always check the parameters of the power supply before connecting!

6.Reverse Assembly and Testing

After repairing or replacing components, collect the overbank in reverse order:

1. Set the cells in place, making sure their polarity matches the marking on the case (+ and -).
2. Seal the thermistor and the indicator plume. Use a low-temperature solder (melting point no higher than 200°C) to keep the board intact.
3. Apply a thin layer of heat glue around the perimeter of the case. Avoid getting glue on the body. USB-port or switch.
4. Squeeze the halves of the body and fix them with rods for 10-15 minutes until the glue catches.

Before the first use:

• 🔌 Completely discharge and charge the overbank 2-3 times ("pump" the battery).
• 📊 Check the real capacity with the help USB-tester (e.g. Xiaomi) ZMI Power Monitor: It must be at least 14,000-15,000 mAh.
• 🔥 Keep an eye on the body temperature during charging/discharging. Normal to 40-45°C.

⚠️ Warning: If after assembly the overbank warms more than usual or discharges quickly, immediately disassemble it and check it:

• Short circuit between cells (click multimeter).
• Correct connection of the thermistor (incorrect polarity will cause false alarm protection).
• Integrity of insulation between contacts (use a thermal shrink tube to protect soldered joints).

7. Alternatives to repair: when disassembly is impractical

In some cases, repairing Xiaomi's 16000 mAh overbank costs more than buying a new one.

• 💸 The cost of new cells 18650 exceeds 60% of the price of the new Poverbank.
• 🔧 The control board burned down completely, and similar modules are not available.
• ⚡ Poverbank older than 3-4 years – modern models (e.g. Xiaomi Mi Power Bank 3 Pro 20000 mAh) offer better energy efficiency.

If you are buying a new bank, pay attention to:

Check compatibility with your devices before buying, for example, laptops require USB-C Power Delivery (PD) support with at least 30W power.

FAQ: Frequent questions about Xiaomi Power Bank 16000