India’s Biggest Mobile
Battery Brand
India’s Biggest Mobile
Battery Brand

OnePlus BLP633 Battery for OnePlus 3T – 3400mAh

Brand: MT Star, Quality Beyond Comparison

Bring back full-day battery life on your OnePlus 3T with the MT Star BLP633: 3400mAh, BIS certified and made to the original size.

About this Product

The OnePlus 3T is a classic that many users still keep, and a new battery is the cheapest way to keep it useful. The MT Star BLP633 restores its 3400mAh capacity.

OnePlus BLP633 battery specifications

Battery model BLP633
Compatible devices OnePlus 3T
Capacity 3400mAh typical / 3300mAh rated
Nominal voltage 3.85V
Charge voltage limit 4.4V
Battery type Rechargeable lithium-ion polymer
Certification BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119)
Series MT Star Premium Series

Signs your OnePlus 3T needs a new battery

  • The device only works while plugged into the charger
  • Charging takes far longer than it did when the device was new
  • The battery drains much faster than it used to
  • The phone shuts down suddenly at 10-30% charge

Why choose MT Star

MT Star supplies batteries for hundreds of phone models to distributors and repair shops across India. Our cells use the original form factor and connector, carry BIS certification, and come with easy returns for any manufacturing defect.

  • BIS certified
  • Original size & connector
  • Easy returns

Frequently asked questions

Which battery does the OnePlus 3T use?

The OnePlus 3T uses the BLP633 battery. The MT Star BLP633 is a direct replacement for it.

What is the battery capacity of the OnePlus 3T?

This replacement battery has a capacity of 3400mAh, matching the OnePlus 3T’s original battery.

Is the MT Star BLP633 battery safe?

Yes. It’s certified under BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119) and is made to the original size and connector.

Can I buy MT Star batteries in bulk?

Yes. MT Star supplies distributors and repair shops across India. Contact us to become a distributor.

How do I know my OnePlus 3T battery needs replacing?

Common signs are fast draining, sudden shutdowns at 10-30%, heating while charging, or a swollen battery lifting the back panel.