18650 Li-Ion 2500mAh 11.1v 3S1P Protected Battery Pack-3c

(1 customer review)

Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 631234


  1. Maximum Output Voltage: 12.6 VDC
  2. High energy density
  3. Good consistency and low self-discharge.
  4. Long life with full capacity for up to 500 charge cycles
  5. Inbuilt (BMS) battery protection circuit


(Including GST)

Out of stock

Free Delivery above ₹499
Free Delivery
above ₹499
1 Year Warranty
15 Days Warranty
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Category: 12V (11.1V~12.6V)
Tags: Li-ion 11.1V battery, 18650 battery pack

Why Should You Choose Us?


Modeled Designs?

Panoramic battery pack design approach tailored for your needs according to the applications and enclosures. We cater to both OEM and Prototyping Orders.

Technical Support?

We offer comprehensive advice and end-to-end technical support in accordance with the inquiry to help create the perfect product.


Our Battery Cells are BIS certified thereby assuring the cell?s quality, reliability, and safety to the customers.

Tested & Proven?

Our every battery pack is QC Tested with multiple safety checkpoints. We also provide test reports by Robulab.

After sales-services?

We provide full repair and replacement on our products after failure analysis from our end ensuring complete customer satisfaction

Warranty & Lead time

We provide a warranty of 1 year on our Protected Battery Packs and 6 months on other Battery packs with a lead time is 5 to 6 Working days only



  • High Energy Density: More power in a smaller package, perfect for portable devices.
  • Long Battery Life: Extended lifespan and capacity retention for lasting performance.
  • Fast Charging: Quick recharge times for on-the-go convenience.
  • Lightweight & Compact: Sleek, lightweight design for comfortable use and portability.
  • Low Self-Discharge: Holds charge longer when not in use, ideal for intermittent use.
  • Versatile Applications: Powers a wide range of devices, from gadgets to vehicles.
  • Environmental Friendly: Reduced pollutants, fewer toxic materials, better for the environment.
  • Stable Voltage Output: Consistent performance as it discharges, no sudden drops.
  • Memory Effect Minimized: No need to fully discharge before recharging.
  • Built-in Safety: Safety mechanisms prevent overcharging, overheating, and short circuits.

Orange Custom Battery Pack:

We build battery packs according to your specific requirement of Size, Shape, Connector type, Cell Type or Brand, and Battery Capacity. To?order your custom battery pack?Click Here.


1 x 18650 Li-Ion 2500mAh 11.1v 3S1P Protected Battery Pack-3c

Battery Type

Li ion 18650 battery Pack

No. of Battery Cell

3x Li-ion 3.7V cells (3S1P)

Nominal capacity


Nominal Output Voltage (V)


Maximum Output Voltage (V)


Cycle life / 80%

≥ 500

Charging Temperature

0 – 45°C

Discharging Temperature

20 – 60°C

Length (mm)


Width (mm)


Height (mm)


Weight (gm)


Shipping Weight 0.18 kg
Shipping Dimensions 8 × 7 × 4 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 1 review

1.0 overall

Add a review

  1. karthickashwath247 (verified owner)

    Please don’t buy this. There is no balance connector and smart chargers will not charge this battery even in normal charge mode.Its not possible to charge lithium batteries safely without smart charger.


Questions and answers of the customers

    This is a 3s battery pack. What is the DC charging... Read more
  1. 0 votes
    Q This is a 3s battery pack. What is the DC charging voltage for this? answer now
    Asked by dak on December 10, 2020 12:00 pm
    Answered by the admin

    Charging voltage range of 7.2 to 11.1V.

  2. Which charger to use to charge batrery
  3. 0 votes
    Q Which charger to use to charge batrery answer now
    Asked by viraj.theeventcompany on September 20, 2020 1:49 am
    A You can use Li-Ion chargers available on our websi... Read more
  4. why charging and discharging port are separate , c... Read more
  5. 0 votes
    Q why charging and discharging port are separate , charging only possible with charge port ?,Is cha...... Read more answer now
    Asked by Anonymous user on May 11, 2020 11:47 am

    Because it has different charging and dischargi... Read more

  6. What is the charging voltage?
  7. 0 votes
    Q What is the charging voltage? answer now
    Asked by Anonymous user on February 12, 2020 1:38 pm

    Hello there, It's maximum charging voltage rate... Read more

  8. what is thick ness of battery is it 15mm
  9. 0 votes
    Q what is thick ness of battery is it 15mm answer now
    Asked by narayane88 on December 25, 2019 4:00 pm
    Answered by the admin

    the thickness is around 25mm.

  10. i have purchased this battery how can i interface ... Read more
  11. 0 votes
    Q i have purchased this battery how can i interface it with Boost Buck Voltage LM2577S LM2596S DC-D...... Read more answer now
    Asked by bpajit on December 10, 2019 2:36 pm

    Yes, you can connect the output of the battery ... Read more

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