How to remove the battery from Xiaomi Redmi 5: disassembly without damage

Xiaomi Redmi 5 is a popular smartphone released in 2017, which is still used by many users. However, over time, the battery loses capacity, inflates or needs to be replaced. Unlike modern models with non-removable batteries, Redmi 5 theoretically allows you to remove the battery, but the process requires caution and the right tools.

This article will help you understand how to safely get a battery from Xiaomi Redmi 5 without damaging the board, plumes or case. We will look at the necessary tools, step-by-step instructions, possible risks and alternative solutions. If you have never disassembled smartphones, you should contact the service center. But if you decide to do it yourself, follow our recommendations.

Preparation for the disassembly: what will be needed

Before you start removing the battery, make sure you have everything you need. The wrong tools can damage the body, display or internal components.

• 🔧 Plastic blades (mediators) - for careful liding and disconnection of plumes.
• ⚒️ The screwdriver (PH00 or PH0) — screw-twisting.
• 🔥 Hair dryer or thermal air station - for softening the glue (if the battery is glued).
• 🧲 Magnetic mat or container – to avoid losing small screws.
• 🧴 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.
• 📦 New battery (if you are planning to replace) – check compatibility with the Redmi 5 model (code) BM43 or BL-5A).

Also, prepare your workspace: a clean desk with good lighting, no carpets (to keep parts from being lost), turn off your smartphone and wait for the battery to run out (less than 5%) to reduce the risk of short circuits, and if the battery is bloated, don't try to puncture or bend it, it can cause fire.

⚠️ Warning: If the battery is swollen or deformed, do not use a dryer - heating can cause leakage of the electrolyte.

Step 1: Removing the back cover

The Xiaomi Redmi 5 case is fastened with latches and glue, so you need to remove the lid carefully. Start by heating the edge with a hairdryer (temperature ~60 ° C) for 1-2 minutes - this will soften the glue. Don't overheat so as not to damage the plastic!

Next:

1. Insert a plastic blade into the gap between the lid and the body (it is better to start from the bottom edge, where the charging connector).
2. Carefully drive the shoulder blade along the edge, alternately snapping the clamps.
3. When the cover starts to separate, remove it completely, starting at the corner near the power button.

Under the lid, you'll see a battery pack covered with a protective film and some plumes. Don't pull the lid abruptly, it might have a fingerprint scanner plume attached to it (if you have one in your model).

Heat the edge with a hairdryer (60°C) | Snap the shoulder blade from the bottom edge | Crush all clamps around the perimeter | Check for the presence of glued plumes-->

Step 2: Disconnect the plumes and battery

Before you touch the battery, disconnect it from the board.

1. Find the battery connector (usually located at the top of the board, next to the camera).
2. Carefully put a plastic spatula on the connector and unplug it. Don't use metal tools!

Now you can start removing the battery. In Redmi 5, the battery is glued to the body, so you need to:

• 🔥 Heat the surface of the battery with a hair dryer (not higher than) 70°C) during 3-5 minute.
• 🩹 Push the battery with a plastic blade from any corner where there are no board components.
• 🖼️ If the battery fails, put a thin plastic card or a special suction cup for batteries.

⚠️ Warning: Do not use sharp objects (knives, screwdrivers) to smack the battery, this can puncture it and cause fire. If the battery does not go away, reheat it and try from the other corner.

Step 3: Cleaning and Preparing for New Battery Installation

After removing the old battery, inspect the landing site, often with traces of glue or dust.

1. Wet the cotton swab in isopropyl alcohol.
2. Carefully remove the residue of glue from the body and contacts.
3. Blow the seat with compressed air (or just let it dry for 5-10 minutes).

If you are installing a new battery, check:

• 🔋 Compatibility of the model (code must be specified) BM43 or BL-5A).
• 📏 Sizes - the battery must fit tightly into the nest without gaps.
• 🔌 Contacts – These must match the old ones (usually 3 or 4 pins).

New batteries often come with duct tape. If they don't, use double-sided tape (like 3M) to fix it. Don't put too much glue on it, it'll make it harder to replace it.

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Before installing a new battery, check its voltage with a multimeter. The normal value for a lithium-ion battery is 3.7-4.2 V. If the voltage is below 3.5 V, the battery may be malfunctioning.

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when replacing the battery.

• 🔌 Unconnected power connector - can cause a short circuit when you manipulate the board. Always disconnect the battery first!
• 🔥 Battery overheating – if you use a hair dryer at maximum temperature, the battery can swell or ignite.
• 🛠️ Using metal tools – scratches on the board or a puncture of the battery will cause malfunction.
• 📱 Display plume damage – if you carelessly remove the cover, you can tear the flexible screen cable.

Another common problem is that the new battery is not installed properly, and if the battery is not tightly attached, it can detach when it vibrates or falls, and make sure that the contacts are not bent or oxidized (clean them with alcohol if necessary).

When is the best time to contact the service center

Despite the apparent simplicity, replacing the battery in Xiaomi Redmi 5 can be a daunting task.

• 💥 Battery swollen or deformed (risk of electrolyte leakage).
• 🛠️ You have no experience in electronics.
• 🔧 Screws or connectors are damaged (for example, thread is ripped off).
• 📱 After disassembly, the phone does not turn on or glitch.

The cost of replacing the battery in the service is usually 1000-2000 rubles (depending on the region and battery model), which is inexpensive compared to the risk of damaging the smartphone, and many services give a guarantee for work (usually 1-3 months).

If you do decide to do it yourself, but something went wrong, don't try to fix the board with a soldering iron, it requires special skills, and it's better to put the phone back and take it to the workshop.

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Replacing your battery on your own is only justified if you are confident in your skills and have all the tools you need, otherwise the risk of damaging your smartphone outweighs the savings.

Alternative ways to extend the life of the battery

If the battery is not yet completely out of order, but it is already holding a charge worse than before, try these methods:

• 🔋 Battery calibration: fully discharge the phone, then charge to 100% without interruptions. Repeat 2-3 times.
• ⚡ Use of the original charger – unoriginal power supplies can damage the battery.
• 🌡️ Avoid overheating – Do not leave your phone in the sun or near heat sources.
• 📴 Disable background apps that consume charge (check in Settings) → Battery).
• 🔄 Update the firmware - in new versions MIUI often optimize energy consumption.

If these measures don't work, and the phone runs out in a few hours, it's time to think about replacing the battery. Remember, lithium-ion batteries lose up to 20 percent of their capacity after 300 to 500 charging cycles. For the Redmi 5, launched in 2017, that's a normal lifespan.

FAQ: Frequent questions about battery replacement in Xiaomi Redmi 5