Are you still using the OUKITEL U7 Plus, or perhaps have one tucked away in a drawer? This ultra-budget smartphone once stood out for offering 4G connectivity, dual SIM support, and a near-stock Android experience at a price below $100. If your device’s battery no longer holds a charge, don’t worry—replacing the OUKITEL U7 Plus battery is easier and cheaper than you think. Read on for a full product review and a step-by-step battery replacement guide.
📱 OUKITEL U7 Plus – Budget Specs, Everyday Usability
Performance & Software
Powered by the MediaTek MT6737 quad-core 1.3 GHz processor and paired with Mali-T720 GPU, 2GB RAM, and 16GB storage (expandable via microSD), the OUKITEL U7 Plus delivers enough muscle for basic tasks—think messaging, light browsing, and social media. Benchmarks hover around 28,600 on Antutu, which is modest but serviceable.
The phone runs Android 6.0 Marshmallow with minimal bloatware and even includes handy floating gesture features. While it’s not suitable for gamers or heavy multitaskers, it gets the job done for basic users.
Display & Build
It features a 5.5-inch HD IPS screen (1280×720), which, while not very bright or color-accurate, is acceptable for casual use. The plastic back has a faux-metal finish and is removable, making maintenance easier. However, the device weighs around 200g and is quite bulky for one-handed use.
Camera & Fingerprint Sensor
The 8MP rear camera (interpolated to 13MP) performs decently in good lighting but struggles in low light. The 2MP front shooter (interpolated to 5MP) is below average and not ideal for selfies. A rear-mounted fingerprint reader is present but slow, with about 80% accuracy.
Battery & Connectivity
The removable 2500mAh battery is arguably the phone’s weakest link, offering just enough juice to last through a normal day. It takes roughly 3.5 hours to charge fully using the stock charger. On the bright side, the standby time is decent, with minimal overnight drain.
You get basic LTE band support (800/900/1800/2100/2600 MHz), dual SIM slots, and microSD expandability. However, U.S. users should note that only 2G/3G is supported—no VoLTE or Wi-Fi calling.
🔋 How to Replace the Battery on OUKITEL U7 Plus
Over time, lithium batteries degrade—especially entry-level ones. Thankfully, the OUKITEL U7 Plus battery is user-replaceable. Here’s how to breathe new life into your device.
🧰 What You’ll Need:
- Replacement battery: U7 OUKITEL U7 Plus 3.8V/4.35V 2500mAh/9.5WH Replacement Smartphone Battery
- Small Phillips screwdriver
- Plastic pry tools
- Cotton swabs and isopropyl alcohol (optional for contact cleaning)
- Anti-static wrist strap (recommended)
🔧 Step-by-Step Instructions:
- Power Off & Remove Cards
Turn off your phone and remove any SIM or microSD cards. - Remove the Back Cover
Use a plastic pry tool to gently lift the back cover from the bottom edge. Work your way around carefully to avoid snapping clips. - Disconnect & Remove the Battery
Since the OUKITEL U7 Plus uses a removable battery, simply unplug it from the connector and lift it out. - Clean the Connectors
For optimal contact, use a cotton swab dipped in isopropyl alcohol to clean both the phone’s connector and the new battery terminals. - Insert the New Battery
Align the new battery and gently connect it. Avoid applying pressure at odd angles. - Test Before Sealing
Power on the device to confirm the new battery works before closing the back panel. - Initial Charging
For best results, charge the new battery for 12 hours before first use.
You can find the replacement part here: U7 OUKITEL U7 Plus 3.8V/4.35V 2500mAh/9.5WH Replacement Smartphone Battery
⚠️ Important Notes
- Always use the correct battery model: 1ICP4/62/91 – 3.8V, 2500mAh.
- If the old battery appears swollen or damaged, do not attempt to remove it yourself. Seek professional help.
- Avoid using metal tools near the battery connector to prevent shorts.
✅ Final Thoughts
The OUKITEL U7 Plus may not be cutting-edge in 2025, but for ultra-budget users or those needing a backup phone, it still holds some value. While the camera, performance, and screen are average at best, the phone’s real asset lies in its removable battery and simplicity.
If you’re experiencing battery issues, don’t toss it out just yet. Installing a new U7 OUKITEL U7 Plus 3.8V/4.35V 2500mAh/9.5WH Replacement Smartphone Battery can make your phone usable again—for less than the cost of a fast-food meal.
Whether you’re keeping the U7 Plus alive a bit longer or preparing to pass it on, replacing the battery is a simple way to extend its service life.