Quick highlights
- Battery Capacity: 3700mAh — built to match the listed device spec OnePlus 6T I OnePlus 7 battery
- Voltage: 3.85V | Energy: 14.25Wh | Type: Li-Polymer
- 3-layer protection: overcharge, over-discharge & short-circuit
BLP685 Battery for OnePlus 6T GM1900 I OnePlus 7 - 3700mAh
BLP685 battery for OnePlus 6T I OnePlus 7 is made for buyers who need the right part without guesswork. Yes, the BLP685 is the correct replacement battery for OnePlus 6T I OnePlus 7. It has the original 3700mAh capacity, built-in overcharge protection, and a 6-month warranty. Ships across India after order confirmation.
- Battery Capacity: 3700mAh — built to match the listed device spec OnePlus 6T I OnePlus 7 battery
- Voltage: 3.85V | Energy: 14.25Wh | Type: Li-Polymer
- 3-layer protection: overcharge, over-discharge & short-circuit
- No memory effect — charge it anytime, even at 50%
BLP685 battery for OnePlus 6T I OnePlus 7 is listed by Welzone with model-specific fitment details, useful buying checks and clear installation guidance so customers can confirm the part before ordering.
Why Your OnePlus 6T I OnePlus 7 Battery Wears Out
Every phone battery has a life of around 300 to 500 charge cycles. After that, it starts holding less and less charge. So if your OnePlus 6T I OnePlus 7 used to last a full day and now it barely makes it to the afternoon — the battery is the reason, not the phone. Replacing it is the simplest and cheapest fix.
About the BLP685 Battery
The BLP685 is a 3.85V Li-Polymer battery with 3700mAh capacity and 14.25Wh energy rating — built around the listed device specification battery that came inside your OnePlus 6T I OnePlus 7. It fits into the same slot without any cutting or modification. The built-in protection chip stops charging automatically when the battery is full, so you never have to worry about overcharging.
How to Get It Installed
If you have never opened a phone before, we suggest going to a local mobile repair shop. They will do it quickly for around a small service fee. If you are comfortable doing it yourself, watch a teardown video for your exact OnePlus 6T I OnePlus 7 model on YouTube before you start. The pry tool and spudger included in the box are the only tools you need.
Warranty
Every BLP685 battery comes with a 6-month replacement warranty. If it stops working normally because of a manufacturing issue — like losing charge too fast without any damage — we replace it. Contact Welzone support with your order ID and a short video. We process claims within 3 working days.
Delivery
Dispatch timing depends on order time, stock and courier pickup. Delivery time depends on your pincode and courier route. You will get updates on SMS, email, and WhatsApp. Cash on Delivery may be available on eligible pin codes.
Welzone Fit Note for OnePlus 6T I OnePlus 7
This Battery page is built from the listed part number BLP685, product category and visible store data. Before ordering, match the model number in your phone settings or on the old part label. If a phone family has multiple variants, add the exact compatible models and specifications manually in the Welzone Layout tab.
Key Features
- Battery Capacity: 3700mAh — built to match the listed device spec OnePlus 6T I OnePlus 7 battery
- Voltage: 3.85V | Energy: 14.25Wh | Type: Li-Polymer
- 3-layer protection: overcharge, over-discharge & short-circuit
- No memory effect — charge it anytime, even at 50%
- Works between 0°C to 45°C — safe for Indian weather
- Part No: BLP685 | Only for: OnePlus 6T I OnePlus 7
Compatible Models
- OnePlus 6T I OnePlus 7
Package Includes
- 1x BLP685 Battery (3700mAh) for OnePlus 6T I OnePlus 7
- 1x Plastic Opening Tool
- 1x Spudger
- 1x Welzone Thank You Card 🙏
Yes. The BLP685 is made specifically for the OnePlus 6T I OnePlus 7. It fits the original battery slot without any cutting or modification. Please check your phone's model number before ordering to confirm compatibility.
The BLP685 has a capacity of 3700mAh at 3.85V — the same as the original battery that came with your OnePlus 6T I OnePlus 7. You get the same battery life as a brand new phone.
With normal daily use, the BLP685 battery lasts a full day on a single charge for most OnePlus 6T I OnePlus 7 users. Heavy users like gamers or those who watch a lot of video may need to charge once during the day.
Yes. Every BLP685 battery from Welzone comes with a 6-month replacement warranty. If the battery has a manufacturing defect, we replace it. Contact Welzone support with your order ID and a video showing the issue.
If you have opened a phone before, yes. The box includes a plastic pry tool and spudger. If this is your first time, we suggest visiting a local repair shop — most charge a small service fee and finish quickly.
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