For OnePlus 6T/ 7 Replacement Battery 3700mAh - BLP685
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Discount applies at checkout on any mix of parts — ideal for repair shops.
Estimated delivery · Royal Mail Tracked 482–3 working days
- Order placedToday
- DispatchedSame day
- At your door2–3 days
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Phone parts are delicate. We recommend fitting by a qualified repair technician — damage caused during fitting is not a product fault. Need help choosing the right part? Call 07425 443625 or email info@therepairplus.com (Mon–Fri 10:00–18:00). Repair shop? Open a trade account.
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The Repair Plus OnePlus 6T / 7 replacement battery (BLP685, 3700mAh) brings back all-day power to a OnePlus 6T or OnePlus 7 with a brand new BLP685 3700mAh battery. It solves weak battery life and unexpected shutdowns. OEM standard and shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- Lithium-ion cells: high-quality cells for steady output.
- Safety protection: guards against overcharging, overheating and short circuits.
- 3700mAh BLP685: the correct battery type for the 6T and 7.
- Precise fit: OEM standard size and connector.
- Tested before dispatch: every battery is checked before shipping.
Specifications
| Part | Replacement battery |
|---|---|
| Battery code | BLP685 |
| Capacity | 3700mAh |
| Compatible model(s) | OnePlus 6T, OnePlus 7 |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
Made for the OnePlus 6T and OnePlus 7, which share the BLP685 battery. Not for the OnePlus 7 Pro (BLP699) or OnePlus 6. Confirm your model in Settings > About phone and the code on the old battery.
Before you fit a replacement battery
- Check the battery code: match the model code printed on your old battery with the one on this listing.
- Discharge first: run the old battery down below 25% before you open the device, which lowers the risk if a cell is damaged.
- Never puncture or bend: lift the old battery slowly, using isopropyl alcohol to soften the adhesive strips.
- Calibrate: after fitting, charge to 100%, use the device normally, then give it a full charge again so the percentage reads accurately.
Why buy from The Repair Plus
- Same-day dispatch when you order before 4pm, Monday to Friday.
- UK stock, shipped from Manchester.
- Every part tested before dispatch.
- 30-day returns.
- Trusted by DIY repairers and independent repair shops.
Frequently asked questions
Is the OnePlus 6T battery the same as the OnePlus 7?
Yes. Both use the BLP685 3700mAh battery, so this part fits either phone.
Why does my OnePlus show the wrong percentage after fitting?
A new battery needs a couple of full charge cycles to calibrate. Charge to 100%, use it down, then charge fully again.
Does it have safety protection?
Yes. It has protection against overcharging, overheating and short circuits.
How fast will it arrive?
Orders placed before 4pm, Monday to Friday, are dispatched the same day from Manchester.
