Samsung 25R 18650 2500mAh 20A Battery

4.88 out of 5
(34 customer reviews)

$10.90 ea

  • Nominal Capacity: 2500mAh
  • Nominal Voltage: 3.6V
  • Discharge: 20A Max Continuous
  • Positive: Flat Top
  • Dimensions: 18.22mm x 64.80mm
  • Weight: 43.7g

In Stock at 18650 NZ

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Bulk Discount Pricing

Quantity Price
1 -9 $10.90
10 -49 $9.81
50 -99 $9.27
100 -299 $8.72
300 + $7.63
SKU: 25R Categories: ,


Samsung 25R 18650 2500mAh 20A Rechargeable Battery

A popular and respected 18650 size cell, it is still widely sold and respected. This cell has excellent quality and a low price. In terms of performance and reliability, this is an outstanding cell. A high maximum continuous discharge/drain rating of 20 amps, and a moderate-high energy capacity of 2,500 mAh make this cell very well balanced (Without any temperature cut involved). Even when pushed to its limits, this cell remains very stable. As you can see from its attributes, The Samsung 25R has pretty much everything you could want in a Li-Ion cell! These include power packs, high-output power banks, BMS’s, and high-powered flashlights. In comparison to previous cells, this one is more stable and safer. This cell has stood the test of time and checks nearly every box. Nobody can deny its long history and popularity among consumers.
  • Brand: Samsung SDI
  • Model: 25R, INR18650-25R (25RM)
  • Size: 18650
  • Chemistry: INR
  • Nominal Capacity: 2500mAh
  • Nominal Voltage: 3.6V
  • Discharge: 20A Max Continuous
  • Positive: Flat Top
  • Protected: NO
  • Rechargeable: Yes
  • Dimensions: 18.22mm x 64.80mm
  • Weight: 43.71g

Samsung 25R datasheet

Additional information

Weight 0.05 kg

Battery Size

Battery Style

Battery Capacity


Discharge Rating


Nominal Voltage

Battery Chemistry


34 reviews for Samsung 25R 18650 2500mAh 20A Battery

  1. 5 out of 5

    Landin S.

    It was exactly what I ordered. I will definitely be using this website again

  2. 5 out of 5

    Ryan O.

    Workin’ like a charm – very quick and professional.

  3. 5 out of 5

    oscar p.

    Well I got some batteries in a different place and they didn’t work. But with your product I saw the right functions right away! Thanks

  4. 5 out of 5

    Sean T.

    Five star ratings.

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New to Lithium Batteries?

  • Choosing a quality brand
  • Selecting the right Battery Capacity
  • What is CDR
  • Flat Top vs Button Top

Best Value

The current lithium-ion market is becoming increasingly scarce, as demand outpaces supply. Demand for lithium-ion batteries has soared due to the popularity of electric vehicles. No matter what, we will never compromise on the quality of our batteries.

Genuine Authentic Cells

With so many websites, wholesalers, and auction sites selling fake or outdated cells, knowing what you're purchasing could be tricky unless you're an expert. Only grade A, sorted, authentic cells with recent manufacture dates are supplied.

Fast Delivery

We understand how important it is for you to receive your products quickly, and we aim to meet your expectations! Our Tauranga warehouse ships orders each day. All in-stock orders submitted before 6 p.m. will be processed the same day.