Charging Xiaomi Redmi VXN4304GL: from adapter selection to fault-solving

Xiaomi Redmi TV VXN4304GL — The 2023 model, which is popular with portable battery functionality, is still being questioned by many users, however, about how to charge the device correctly, which adapter to use, and why it sometimes takes longer than the instructions indicate. Unlike smartphones, where charging is intuitive, battery TVs require a special approach.

In this article, we will look at everything from the choice of charger to the diagnosis of problems, you will learn whether you can use adapters from other Xiaomi devices, how to speed up charging without risk to the battery, and what to do if the TV does not respond to the connection to the network, and pay special attention to the energy saving modes that directly affect the charging speed and battery life.

Important: Redmi VXN4304GL equipped with a lithium-ion battery 12000 mAh, and improper charging can reduce its resource on 30-40%. Therefore, following the manufacturer's recommendations is not a whim, but a necessity for the durability of the device.

Technical characteristics of the Xiaomi Redmi battery VXN4304GL

Before we get to practical tips, let's get to the hardware. VXN4304GL It is equipped with a built-in battery with the following parameters:

• 🔋 Battery type: Lithium-ion (Li-ion) with overheating protection system
• 📊 Capacity: 12,000 mAh (equivalent) ~44.4 Whh)
• ⚡ Voltage: 11.1 V (nominal), 12.6 V (maximum)
• 🔄 Charging cycles: up to 500 full cycles under operating conditions
• ⏱ Full charging time: 3.5 to 5 hours (depending on adapter and operating mode)

The feature of this model is support for fast charging with power up to 65 Wh, but only when using the original adapter Xiaomi with the marking MDY-12-EU (or similar to Quick Charge Certification 3.0+). Connection through USB-C limiting power to 18 Which increases the charging time to 7-8 hours.

The manufacturer states that with moderate use (4-5 For hours a day, the TV can work until 10-12 However, the actual battery life depends on the brightness of the screen, the connected devices (for example, the sound bar or game console) and the activity of the device. Wi-Fi/Bluetooth-module.

What Chargers Are Suitable for Redmi VXN4304GL

One of the most common questions is, can you use charging from other devices? The answer is yes, but with reservations. The TV supports several types of connection:

⚠️ Note: Use of adapters with higher voltage 12.6B or more current 5Or it could damage the power controller, like a Lenovo laptop charger with output. 20V/3.25It will not work even if the connector is physically compatible.

If you have lost the original adapter, choose a replacement with the following options:

• 🔌 Connector: 5.5×2.1 mm (external diameter) 5.5 mm, internal 2.1 mm)
• ⚡ Voltage: strictly 12B ± 0.5V
• 📊 Power: At least 60 watts for full charging
• 🛡 Certification: CE, RoHS, Quick Charge 3.0/4.0

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Before buying a new adapter, check its compatibility at the Xiaomi Accessories Compatibility website (VXN4304GL) and select the region of purchase.

Step-by-step: how to charge the TV correctly

The charging process seems simple, but there are nuances that affect speed and safety.

1. Turn off the TV. Charging in the off state is done on the 20-30% faster as energy consumption is minimized.
2. Connect the adapter to the socket. Use a network filter if your network has frequent voltage surges.
3. Connect the cable to the TV. For the DC-in connector, make sure the plug is inserted before the click.
4. Turn on the power. The front panel will light up a red indicator (charging), which will change to green when completed.

If the charging goes through USB-C:

• 🔄 Use a cable with Power Delivery support (PD) (They usually come with modern smartphones).
• 📱 Disable all peripherals (flash drives, game controllers) to reduce load.
• ⚡ In the TV menu, activate the Energy Saving mode (Settings) → Nutrition → Battery mode).

Turn off the TV before connecting the adapter|

Check the integrity of the cable (no inflections, bare wires)|

Make sure the connector is clean (dust may block contact)|

Shut it down. USB-devices (they consume additional energy)-->

⚠️ Note: If the TV does not respond to the adapter connection, check:

🔌 Correct connection connector (sometimes the plug does not reach the end). 🔋 Battery status: If the voltage has dropped below 9V, a “push” from a more powerful source (e.g., a car battery) may be required). 🔌 Power outlet: Try another socket or network filter.

How long does it take to fully charge?

Charging time depends on three factors: the type of adapter, the current charge level and the mode of operation of the TV.

In practice, the time may differ:

• 🌡 Lower temperature +10°C or higher +35°C charging speed is automatically reduced by 40-50%.
• 📺 If the TV is turned on while charging, the process slows down. 1.5-2 hourly (due to the power consumption of the screen and processor).
• 🔄 After 80% charge, the controller goes into “recharging” mode and the speed drops to protect the battery.

To speed up the process:

✅ Use the original Xiaomi adapter with DC-in connector. ✅ Turn off Wi-Fi and Bluetooth in the Settings menu → Network. ✅ Set the brightness of the screen on 50% lower. ✅ Charge at room temperature (18-25°C).

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Charging to 100% is not required for everyday use, and the optimal range for extending battery life is from 20% to 80%.

Frequent problems and their solutions

Even if you follow all the rules, users are going to have problems, and let's look at the typical scenarios and how to fix them.

1.The TV is not charged (the indicator is not lit)

Possible causes and solutions:

• 🔌 Faulty adapter or cable: Try charging from another device. If the indicator catches fire, accessory problems.
• 🔋 Battery discharge: If the TV didn't turn on for more than a month, the battery could run out to a critical level. 10-15 For a minute, then try the standard charger.
• 🛠 Connector problems: Check the DC-in socket for contamination or damage. Clean it with a dry toothbrush.

2. Charging is going too slowly.

What to check:

• ⚡ Adapter power: USB-C It gives a maximum of 18 watts, which is 3.5 times slower than the DC-in.
• 📡 Background Processes: Turn off automatic updates (Settings) → System system → Update of the PO).
• 🌡 Overheating: If the body is hot, the controller reduces the current. 30-40 minute.

3.The TV turns off when charging is connected

This is a common problem when using non-original adapters.

• 🔌 Try another adapter with similar parameters.
• 🔄 Reset the power settings: Settings → System system → Reset → Reset the power settings.
• 🛡 Update the firmware: legacy versions of the software may conflict with the charging controller.

How to extend the life of the battery

Lithium-ion batteries degrade over time, but proper operation can increase their lifespan. 20-30%. Follow these recommendations:

• 🔄 Avoid full discharges: Connect charging at level 15-20%.
• ⚡ Don’t keep charging constantly: Once you reach 100%, turn off the adapter.
• 🌡 Control the temperature: Do not charge at temperatures below 0°C or higher than 40°C.
• 📅 Use it regularly: If the TV is lying idle, discharge it every 2 months and charge it to 50%.
• 🔌 Use original accessories: Cheap cables and adapters can damage the power controller.

There's a hidden battery setting on the TV menu, so you can open it.

1. Go to Settings. → On TV.
2. Click 5 times in a row on the Device Model (the message "Developer Mode is activated") will appear.
3. Go back to the main settings menu and select a new item for developers. → Battery settings.
4. Activate the option Charging Optimization – this will limit the maximum charge to 80%, extending the service life.

⚠️ Warning: If the battery capacity has fallen below 60% of the original (checked in the Settings menu) → Nutrition → Battery condition, recommended to be replaced, continued use of the worn-out battery may lead to sudden shutdowns or bloating.

Alternative charging methods

Sometimes standard methods are not available. Consider the unusual but workable options:

1. Charging from powerbank

This will require:

• 🔋 Powerbank with a capacity of at least 20,000 mAh with a output of 12V.
• 🔌 The adapter with USB-C/USB-A on DC 5.5×2.1 mm.
• ⚡ Cable with Quick Charge support.

⚠️ Power will be limited. 15-18 Watt, so it'll take a full charge. 8-10 hours.

2. Charging from the solar panel

Suitable for a summer cottage or camping.

• ☀️ Solar panel with a capacity of at least 100 W.
• 🔋 Charge controller with output 12B.
• 🔌 A battery-intermediary (for example, a car on the 12V/7Ahh).

📌 Directly connect the TV to the solar panel is impossible – this will lead to voltage surges and battery damage.

3. Charging from another Xiaomi TV

If you have a second Xiaomi TV with a similar DC-out connector (e.g. Mi). TV Stick, you can use it as a power source:

1. Connect both devices via DC-cable (you will need to buy an adapter).
2. On power supplies, turn on Power Share mode (if supported).
3. Start charging - the speed will be low (5-10 W), but sufficient for emergency recharging.

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If you often take a TV on a trip, buy a compact adapter Xiaomi MDY-11-EU (65 watts, folding plug. It's compatible with Redmi. VXN4304GL takes up the minimum space.

FAQ: Answers to popular questions