What batteries are suitable for Xiaomi scales: a full analysis of models and tips for replacing

Introduction: Why battery selection is important for weight accuracy

Xiaomi’s smart scales have become an integral part of a healthy lifestyle for millions of users: they not only measure weight, but also analyze body composition, sync with applications and monitor the dynamics of change. However, even the most advanced device is helpless without the right power source. Inappropriate batteries can lead to measurement failures, spontaneous shutdowns or even damage to electronic components.

In this article, we will discuss which batteries are compatible with popular scale models Xiaomi Mi Body Composition Scale, Xiaomi Smart Scale 2 and others, how to replace them, and what to do if the device does not turn on after installing new batteries, and pay special attention to hidden nuances that are not written in the instructions – for example, why cheap batteries can “cheat” weight sensors or how temperature affects the life of the device.

Spolier: Not all CR2032 batteries are the same, even if they look identical. Differences in capacity, contact quality and chemical composition can reduce the weight from 12 months to 2-3 weeks. And some Xiaomi models use rare batteries that are not sold in every store.

Xiaomi’s official recommendations: which batteries are specified in the instructions

In the documentation for most of Xiaomi’s smart scales, the manufacturer specifies the standard type of battery — the CR2032 3V (lithium “pill”). However, this does not mean that any battery of this form factor will fit.

• 🔋 Capacity: minimum value - 220 mAh Batteries with a capacity below 200 mAh will be discharged in 1-2 months of active use.
• 🏭 Manufacturer: Xiaomi recommends brands Duracell, Energizer, Panasonic or Maxell. Chinese no-name batteries often have poor contacts, leading to "glitch" scales.
• 📅 Shelf life: Lithium cells lose up to 20% of their capacity in 5 years of storage!

For some models, the requirements are different:

⚠️ Note: Xiaomi Mi Scale scale (1st generation) uses a pair of batteries LR44, not CR2032, If you install the wrong type, it will cause the device to fail to turn on or show incorrect data!

Alternative batteries: can analogues be used?

Often, users try to save money by buying cheaper ones instead of the recommended CR2032, but not all replacements are safe.

• ✅ Permissible analogues for CR2032: DL2032 — full-length. BR2032 — It is chemically diverse but compatible in size and voltage. LIR2032 — rechargeable (3.6V), It requires a special charger, not recommended for weights because of the risk of overheating.
• ❌ Prohibited substitutions: CR2026 — thinner 0.7 Uh, it won't provide reliable contact. LR44/AG13 — tension 1.5V instead 3V, Ni-MH batteries, unstable voltages will cause sensor failures.

Critical information: The Xiaomi Mi Body Composition Scale uses a gyrl protection scheme, but it does not work when installing batteries with voltage below 2.7V. This can damage the microcontroller!

If you decide to experiment with analogues, follow the rule: the voltage should be exactly 3V, and the thickness is 3.2 mm (± 0.1 mm).

• 🔄 Self-involved resetting of weights.
• 📉 Inaccurate readings (error before) ±500g).
• 🔋 Fast discharge of the nutrients.

Step-by-step: how to replace batteries

Replacing the power in Xiaomi’s scales seems like a simple procedure, but many users make mistakes that lead to breakdowns.

1. Preparation: Turn off the scales from the Mi Fit/Zepp Life app (if connected). Turn over the device and find the battery compartment (usually closed with a latch lid); Prepare new batteries - check their voltage with a multimeter (should be 3.0-3.3V).
2. Removing old batteries: Carefully tuck the compartment cover with a flat screwdriver or coin. Remove all the batteries at the same time (if you leave one, you can short circuit!). Check the contacts for oxidation. If necessary, clean them with a cotton swab dipped in alcohol.

Installation of new batteries:

• Make sure the polarity (+/-) matches the marking in the compartment.
• Put the batteries in one at a time, starting with the last one.
• Close the lid before you click - it should sit tightly, without backlash.

⚠️ Attention: If the scales are not turned on after replacing the batteries, check: Polarity - an inverted battery can block the operation of the device. Contacts - sometimes they bend when installed. Type of batteries — CR2032 and BR2032 They are identical but have different chemistry. If the problem persists, try to reset the scales to the factory settings (press the switch on button for 10 seconds).

Battery life: how to extend the work of the scales

The average battery life in Xiaomi’s scales is 6-12 months, but this indicator is highly dependent on the operating conditions.

• 📊 Frequency of use: With daily weighing, batteries will sit 2-3 times faster than when used 1-2 times a week.
• 🌡️ Temperature: Storage of scales in the bathroom (high humidity) + Temperature changes reduce service life by 30-40%.
• 📶 Bluetooth sync: Constantly connecting to your smartphone drains batteries 15-20% faster.
• 🔋 Low-cost batteries lose up to 50% of their capacity in six months, even without use.

To extend the life of batteries, follow these tips:

• 🔌 Turn off Bluetooth if you don't sync. Press the switch on 5 seconds before the beep.
• 🏠 Keep the scales in a dry place – ideal temperature 15-25°C. Avoid direct sunlight.
• ⚡ Use low-discharge batteries (e.g. Panasonic Evolta or Energizer Ultimate Lithium).
• 🔄 Remove the batteries if you don’t plan to use the scales for more than a month.

Interesting fact: The Xiaomi Mi Body Composition Scale 2 has an energy saving feature – if the device is not used for 5 minutes, it automatically goes to sleep. However, even in this mode, the batteries run out (about 1% per month).

💡

If the scales start to "glutch" (spontaneously turn off, show the wrong weight), try for 10 minutes to remove the batteries and insert them back, this will reset the temporary errors of the microcontroller.

Frequent problems and their solutions

Even with the right batteries, Xiaomi scales can work incorrectly.

⚠️ Note: If the scales after battery replacement show weight with a large margin of error (for example, +2-3 kg), this may indicate damage to the sensors. Don't try to calibrate the device yourself - contact the service center. Incorrect calibration can completely disable the scales.

If none of the tips helped, try to lose weights to factory settings:

1. Remove all batteries.
2. Press and hold the 15 seconds switch.
3. Put the batteries back in.
4. Wait 1 minute - the scales should turn on in the settings mode.

💡

If Xiaomi scales after replacing batteries give an E1 or E2 error, this indicates a problem with the sensors. Self-repair is not recommended - diagnostics are required in the service center.

Where to buy batteries for Xiaomi scales: proven places and prices

You can buy the right batteries in different places, but not all sources are reliable.

• 🛒 Offline stores: Crossroads, Five, Magnet -- usually Duracell or Energizer, but limited. Eldorado, M. Video -- more models, but 20 to 30 percent higher. Pharmacies -- sometimes sold. CR2032, but often without the capacity.
• 🌍 Online: Wildberries, Ozon - a wide range, you can choose from reviews. AliExpress - cheaper, but high risk of running into a fake. Duracell/Panasonic — Quality assurance, but the price is higher.

Average prices for CR2032 batteries (June 2026):

• Duracell (4 units) – 300–400 ₽.
• Energizer (4 units) – 250–350 ₽.
• Panasonic (4 units) – 200–300 ₽.
• No-name (China) - 50-150 ₽ (low-risk).

Tip: Buy batteries from trusted online stores with reviews. On AliExpress, pay attention to the seller's rating (at least 98%) and the number of orders (from 1000+). Avoid offers with suspiciously low prices - often these are re-labeled batteries with less capacity.

FAQ: Answers to Frequent Questions