Lenovo BL291 Battery for Lenovo A5 – 3500mAh

Brand: MT Star, Quality Beyond Comparison

3500mAh replacement battery for the Lenovo A5 (battery model BL291). BIS certified, original-size fit, made by MT Star.

About this Product

When the Lenovo A5 starts draining fast or switching off early, the battery is usually the cause. The MT Star BL291 restores 3500mAh of capacity with the original size and connector.

Lenovo BL291 battery specifications

Battery model	BL291
Compatible devices	Lenovo A5
Capacity	3500mAh
Nominal voltage	3.82V
Battery type	Rechargeable lithium-ion polymer
Certification	BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017
Series	MT Star Premium Series

Signs your Lenovo A5 needs a new battery

The back panel or screen is lifting (a sign of a swollen battery)
The phone 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

Why choose MT Star

Safety comes first with MT Star. Our batteries are certified to IS 16046 and IEC 62133-2, built to the original dimensions, and backed by our support team and easy returns for manufacturing defects.

BIS certified
Original size & connector
Easy returns

Frequently asked questions

Which battery does the Lenovo A5 use?

The Lenovo A5 uses the BL291 battery. The MT Star BL291 is a direct replacement for it.

What is the capacity of this Lenovo A5 battery?

This MT Star replacement battery has a capacity of 3500mAh.

Is the MT Star BL291 battery safe?

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

Should a technician install this battery?

Yes. For phones with glued backs we recommend fitting by a trained mobile repair technician.

How should I charge a new replacement battery?

Use a good-quality charger suited to your phone. After fitting, charge it fully and use it normally for the first few cycles so the battery indicator calibrates.